{"pageNumber":"1","pageRowStart":"0","pageSize":"25","recordCount":560,"records":[{"id":70275033,"text":"70275033 - 2026 - Mineral chemistry perspective on remobilization of stored magma at Kamakai'a Hills, Southwest Rift Zone of Kilauea, Island of Hawai'i, USA","interactions":[],"lastModifiedDate":"2026-04-13T15:00:24.166946","indexId":"70275033","displayToPublicDate":"2026-04-08T07:51:43","publicationYear":"2026","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Mineral chemistry perspective on remobilization of stored magma at Kamakai'a Hills, Southwest Rift Zone of Kilauea, Island of Hawai'i, USA","docAbstract":"<p><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span>Differentiated magmas stored in the rift zones of Kīlauea have received more attention in recent years following eruption of andesite during the early phase of 2018 lower East Rift Zone activity. Despite this growing interest, some of the most voluminous eruptions of differentiated rift zone magmas remain poorly studied. One such eruption, and the most voluminous exposed differentiated flow field at Kīlauea, is the Kamakaiʻa Hills. This eruption took place in the Southwest Rift Zone of Kīlauea, a region that is hypothesized to contain a long-lived rift zone reservoir. The Kamakaiʻa Hills flow field encompasses &gt;250&nbsp;×&nbsp;10</span><sup>6</sup><span>&nbsp;m</span><sup>3</sup><span>&nbsp;of basaltic andesite and basalt compositions with a mineral assemblage of orthopyroxene + clinopyroxene + plagioclase during its early ʻaʻā phase and clinopyroxene + plagioclase + olivine during its late pāhoehoe phase. To better understand storage conditions and magma accumulation, this study focuses on major, minor, and trace elements from the mineral assemblage present within the early ʻaʻā and late pāhoehoe phases. The diversity of clinopyroxene and plagioclase compositions within the early ʻaʻā and late pāhoehoe phases, as well as diverse compositions of plagioclase and orthopyroxene within the early ʻaʻā phase, suggest multiple magma bodies and limited pre-eruption magma mixing within the broader Kamakaiʻa Hills reservoir. Oscillatory zoning patterns (particularly in clinopyroxene) imply processes such as recharge events, magma mixing or mingling, or convection within a differentially cooling, chemically stratified reservoir over protracted time intervals, whereas only limited resorbed mineral textures indicate incomplete mixing of heat and chemically distinct magmas during the dike intrusion that triggered the eruption. Mineral-mineral and mineral-melt thermobarometry indicate predominantly shallow (≤2.5&nbsp;km depth) crustal storage conditions of the cooled, differentiated magma (∼1100&nbsp;°C and cooler for the basaltic andesites) to hotter temperatures for the basalts (all &gt;1100&nbsp;°C). Despite the known large standard errors estimated for mineral-melt and mineral-mineral barometry (10s to &gt;100&nbsp;MPa), the calculated pressures and depths broadly correspond with earthquake swarm depths beneath the Kamakaiʻa Hills, and drill core and fluid inclusion barometry storage depths of differentiated magmas within the lower East Rift Zone. The Kamakaiʻa Hills differentiated magmas have H</span><sub>2</sub><span>O contents (∼0.5&nbsp;wt%, using plagioclase-melt hygrometry) equivalent to typical Kīlauea basalts. Our data and interpretations demonstrate a complex, long-lived rift zone storage system that consisted of multiple magma bodies and was mobilized into eruption through intrusion of a hotter and more primitive summit-derived (uprift) magma.</span></span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2026.108617","usgsCitation":"Downs, D.T., and Sas, M., 2026, Mineral chemistry perspective on remobilization of stored magma at Kamakai'a Hills, Southwest Rift Zone of Kilauea, Island of Hawai'i, USA: Journal of Volcanology and Geothermal Research, v. 474, 108617, 21 p., https://doi.org/10.1016/j.jvolgeores.2026.108617.","productDescription":"108617, 21 p.","ipdsId":"IP-183554","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":502744,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kamakaiʻa Hills, Kilauea","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.509101604398,\n              19.66848997608244\n            ],\n            [\n              -155.509101604398,\n              19.173760203668323\n            ],\n            [\n              -154.75976134321473,\n              19.173760203668323\n            ],\n            [\n              -154.75976134321473,\n              19.66848997608244\n            ],\n            [\n              -155.509101604398,\n              19.66848997608244\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"474","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":959271,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sas, May","contributorId":194298,"corporation":false,"usgs":false,"family":"Sas","given":"May","email":"","affiliations":[],"preferred":false,"id":959272,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70274271,"text":"70274271 - 2026 - Spatial and temporal geochemical variations of lava flows and tephra deposits from the December 2020 to September 2024 eruptions of Kīlauea volcano","interactions":[],"lastModifiedDate":"2026-03-24T15:58:48.823617","indexId":"70274271","displayToPublicDate":"2026-03-16T10:54:53","publicationYear":"2026","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Spatial and temporal geochemical variations of lava flows and tephra deposits from the December 2020 to September 2024 eruptions of Kīlauea volcano","docAbstract":"<p><span>Kīlauea volcano underwent dramatic morphological changes in 2018. That year recorded the end of the 35-year-long eruption of Puʻuʻōʻō (1983–2018) and 10-year-long (2008–2018) Halemaʻumaʻu lava lake and emplacement of the ~4-month-long lower East Rift Zone lava flows that coincided with ~500&nbsp;m of summit caldera collapse. Starting on December 20, 2020, eruptions resumed at Kīlauea’s summit. There were five summit eruptions between December 2020 and September 2023, which ranged in duration from more than a year to as short as a week. Following these summit eruptions, seismicity and deformation increased in the upper Southwest Rift Zone in 2024, culminating in a ~8.5-h-long eruption in this region on June 3, 2024. Increased seismicity and deformation then shifted to the upper and middle East Rift Zone and after several months culminated in an eruption just west of, and within, Nāpau Crater in the middle East Rift Zone from September 15 to 20, 2024. Despite vast morphological changes at Kīlauea’s summit, the geochemical compositions (i.e., whole rock and glass) that erupted from December 2020 to September 2023 are all remarkably similar to each other. Whole-rock compositions appear distinct from the preceding 2008–2018 Halemaʻumaʻu lava lake and phase 3 (i.e., summit or uprift-derived mafic lavas) of the 2018 lower East Rift Zone lava flows, although glass compositions appear to have more overlap with 2018 lower East Rift Zone glasses. The June 3, 2024, upper Southwest Rift Zone spatter and lava flows exhibit a dramatic enrichment in whole-rock MgO that is not recorded in glass, which reflects accumulation of olivine (e.g., antecrysts or xenocrysts) during dike emplacement, and is consistent with the abundance of olivine in the lava flows (5–10%). June 2024 Southwest Rift Zone whole-rock and glass compositions overlap with those erupted at the summit from December 2020 to September 2023, whereas some whole-rock trace (i.e., Sc, Sr, and Zr) and major elements (i.e., CaO) are suggestive of mixing with a magmatic component that had fractionated plagioclase and pyroxene and/or a new parental magma influencing the summit reservoir system. The September 15–20, 2024, eruption at Nāpau Crater in the middle East Rift Zone involved the most differentiated magma since eruptive activity resumed in December 2020, with its magma fractionating olivine + plagioclase + pyroxene. The September 15–20, 2024, composition resembles Puʻuʻōʻō lava flows that erupted in, or near, Nāpau Crater in 1983 (episode 1), 1997 (episode 54), and 2011 (episode 59), with episode 59 having a compositional cluster that is most similar to that of the September 2024 lava flows. The data presented and provided herein open new research perspectives for long-term analyses of geochemical variations following caldera collapse at Kīlauea volcano and facilitate comparisons with other basaltic caldera systems worldwide.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00445-026-01957-x","usgsCitation":"Downs, D.T., Lynn, K.J., Winslow, H.B., Lundblad, S.P., and Decker, M.F., 2026, Spatial and temporal geochemical variations of lava flows and tephra deposits from the December 2020 to September 2024 eruptions of Kīlauea volcano: Bulletin of Volcanology, v. 88, 38, https://doi.org/10.1007/s00445-026-01957-x.","productDescription":"38","ipdsId":"IP-183556","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":501459,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.33139629075612,\n              19.493695096800963\n            ],\n            [\n              -155.33139629075612,\n              19.27430771431321\n            ],\n            [\n              -155.12603194289784,\n              19.27430771431321\n            ],\n            [\n              -155.12603194289784,\n              19.493695096800963\n            ],\n            [\n              -155.33139629075612,\n              19.493695096800963\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"88","noUsgsAuthors":false,"publicationDate":"2026-03-16","publicationStatus":"PW","contributors":{"authors":[{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":957496,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lynn, Kendra J. 0000-0001-7886-4376","orcid":"https://orcid.org/0000-0001-7886-4376","contributorId":290327,"corporation":false,"usgs":true,"family":"Lynn","given":"Kendra","email":"","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":957497,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Winslow, Heather Brianne 0000-0001-6664-6339","orcid":"https://orcid.org/0000-0001-6664-6339","contributorId":367700,"corporation":false,"usgs":true,"family":"Winslow","given":"Heather","middleInitial":"Brianne","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":957498,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lundblad, Steven P.","contributorId":367701,"corporation":false,"usgs":false,"family":"Lundblad","given":"Steven","middleInitial":"P.","affiliations":[{"id":81292,"text":"University of Hawaiʻi at Hilo","active":true,"usgs":false}],"preferred":false,"id":957499,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Decker, Meghann F.I.","contributorId":367702,"corporation":false,"usgs":false,"family":"Decker","given":"Meghann","middleInitial":"F.I.","affiliations":[{"id":81292,"text":"University of Hawaiʻi at Hilo","active":true,"usgs":false}],"preferred":false,"id":957500,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70268390,"text":"70268390 - 2025 - Rapid emplacement of the Keaiwa Lava Flow of 1823 from the Great Crack in the Southwest Rift Zone of Kilauea volcano","interactions":[],"lastModifiedDate":"2025-06-24T14:27:46.198157","indexId":"70268390","displayToPublicDate":"2025-06-19T09:20:50","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Rapid emplacement of the Keaīwa Lava Flow of 1823 from the Great Crack in the Southwest Rift Zone of Kīlauea volcano","title":"Rapid emplacement of the Keaiwa Lava Flow of 1823 from the Great Crack in the Southwest Rift Zone of Kilauea volcano","docAbstract":"<p><span>The Keaīwa Lava Flow of 1823 in the Southwest Rift Zone of Kīlauea volcano is unusual for its expansive pāhoehoe sheet flow morphology and lack of constructive vent topography, despite having a similar tholeiitic basalt composition to other lavas erupted from Kīlauea. This lava flow issued from a&nbsp;∼10-km-long continuous fissure now known as the Great Crack, and has an unusually thin sheet flow morphology with margin thicknesses of ∼15–110&nbsp;cm (average of 42&nbsp;cm). Based on field observations of the lava flow at its fissure vent (e.g., drain-back features), we propose that the Great Crack formed, or at least significantly widened, just prior to and syn-eruptively with this 1823 eruption. The absence of pyroclastic cones or spatter ramparts indicates that the eruption consisted of a rapid outpouring of relatively degassed lava as the fissure unzipped. The rapidly moving lava flow overtopped pre-existing tumuli and scoria cones (e.g., Lava Plastered Cones) up to ∼10&nbsp;m tall. Glass and whole-rock chemistry yield homogeneous compositions for the lavas erupted from the Great Crack, with glass compositions of 6.40&nbsp;±&nbsp;0.10&nbsp;wt% MgO and whole-rock compositions of 7.39&nbsp;±&nbsp;0.07&nbsp;wt% MgO. Lava pads erupted from a short western fissure system are richer in mafic minerals (e.g., olivine and clinopyroxene), and show slightly more MgO-rich whole-rock compositions (7.79&nbsp;±&nbsp;0.05&nbsp;wt%). MgO-in-glass thermometry on juvenile spatter yield eruption temperatures of 1153&nbsp;±&nbsp;13°C that are typical of Kīlauea lavas. Thus, the extensive sheet-like lava flow morphology is not a direct consequence of unusual magmatic or rheological conditions (i.e., low viscosity). Instead, the flow morphology is associated with high effusion rates caused by sudden drainage of uprift magma as it erupted from the Great Crack. Lava flow modeling on a 2-m-resolution digital elevation model indicates that a minimum bulk effusion rate of ∼5800&nbsp;m</span><sup>3</sup><span>/s (∼3500&nbsp;m</span><sup>3</sup><span>/s dense rock equivalent) and a minimum flow velocity of ∼11&nbsp;m/s are required for the lava flow to overcome the topography of the Lava Plastered Cones. This effusion rate is among the highest inferred for eruptions in Hawaiʻi and around the world. This study highlights a less frequent eruption style at Hawaiian volcanoes characterized by a sudden outpouring of lava from an unusual fissure system. Local eyewitness accounts indicate that the 1823 eruption was preceded by seismicity. Given the complex magmatic-volcanic-tectonic relations across Kīlauea, we speculate that the south flank could have slipped over one or more events that ultimately triggered unzipping of the Great Crack and passive release of briefly stored uprift magma. An eruption similar to 1823 at Kīlauea or Mauna Loa, with an eruptive timeframe that could be as short as an hour, with high effusion rates and rapid flow front velocities, would not easily allow for a timely response.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2025.108391","usgsCitation":"Tonato, A., Shea, T., Downs, D.T., and Kelfoun, K., 2025, Rapid emplacement of the Keaiwa Lava Flow of 1823 from the Great Crack in the Southwest Rift Zone of Kilauea volcano: Journal of Volcanology and Geothermal Research, v. 466, 108391, 18 p., https://doi.org/10.1016/j.jvolgeores.2025.108391.","productDescription":"108391, 18 p.","ipdsId":"IP-169862","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":494405,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.jvolgeores.2025.108391","text":"Publisher Index Page"},{"id":491181,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Great Crack in the Southwest Rift Zone of Kīlauea volcano, Keaīwa Lava Flow","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.2184297752859,\n              19.437317498221987\n            ],\n            [\n              -155.5,\n              19.437317498221987\n            ],\n            [\n              -155.5,\n              19.1667\n            ],\n            [\n              -155.2184297752859,\n              19.1667\n            ],\n            [\n              -155.2184297752859,\n              19.437317498221987\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"466","noUsgsAuthors":false,"publicationDate":"2025-06-19","publicationStatus":"PW","contributors":{"authors":[{"text":"Tonato, Andrea","contributorId":352882,"corporation":false,"usgs":false,"family":"Tonato","given":"Andrea","affiliations":[{"id":64253,"text":"University of Hawaiʻi at Mānoa","active":true,"usgs":false}],"preferred":false,"id":941184,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shea, Thomas","contributorId":236886,"corporation":false,"usgs":false,"family":"Shea","given":"Thomas","affiliations":[{"id":47560,"text":"University of Hawaii Manoa","active":true,"usgs":false}],"preferred":false,"id":941185,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":941186,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kelfoun, Karim","contributorId":333750,"corporation":false,"usgs":false,"family":"Kelfoun","given":"Karim","email":"","affiliations":[{"id":79967,"text":"Laboratoire Magmas et Volcans, Université Clermont Auvergne, Clermont-Ferrand, France","active":true,"usgs":false}],"preferred":false,"id":941187,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70267410,"text":"70267410 - 2025 - Social sensing a volcanic eruption: Application to Kīlauea, 2018","interactions":[],"lastModifiedDate":"2025-05-27T13:18:28.89664","indexId":"70267410","displayToPublicDate":"2025-05-12T10:15:54","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2824,"text":"Natural Hazards and Earth System Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Social sensing a volcanic eruption: Application to Kīlauea, 2018","docAbstract":"<p><span>Protecting lives and livelihoods during volcanic eruptions is the key challenge in volcanology, conducted primarily by volcano monitoring and emergency management organisations, but it is complicated by scarce knowledge of how communities respond in times of crisis. Social sensing is a rapidly developing practice that can be adapted for volcanology. Here we use social sensing of Twitter (currently known as X) posts to track changes in social action and reaction throughout the 2018 eruption of Kīlauea on the island of Hawai`i. The volume of relevant posts very rapidly increases in early May, coincident with the beginning of the eruption; automated sentiment analysis shows a simultaneous shift towards more negative emotions being expressed in post text. Substantial negative trends in sentiment are evident in reaction to high-impact events, including the destruction of a popular residential area and injuries sustained by tourists viewing the eruption. Topics of local Twitter conversation reveal societal actions, including the sharing of hazard warnings, mitigation actions, and aid announcements. Temporal trends in societal actions reflect patterns in volcanic activity (e.g. the peak and waning of eruptive activity), civil protection actions (e.g. risk mitigation actions and the communication of official warnings), and socioeconomic pressures (e.g. the destruction of homes). Local tweets detailing eruption damage and disruption display a similar temporal trend to independent estimates of the number of buildings in contact with lava. We show how hazard and risk information is discussed and reacted to on Twitter, which helps inform our understanding of community response actions and aids situational awareness, and outline how our approach could be adapted for use in real time.</span></p>","language":"English","publisher":"European Geosciences Union","doi":"10.5194/nhess-25-1681-2025","usgsCitation":"Hickey, J., Young, J., Spruce, M., Pandit, R., Williams, H., Arthur, R., Stovall, W., and Head, M., 2025, Social sensing a volcanic eruption: Application to Kīlauea, 2018: Natural Hazards and Earth System Sciences, v. 25, no. 5, p. 1681-1696, https://doi.org/10.5194/nhess-25-1681-2025.","productDescription":"16 p.","startPage":"1681","endPage":"1696","ipdsId":"IP-168133","costCenters":[{"id":508,"text":"Office of the AD Hazards","active":true,"usgs":true}],"links":[{"id":488089,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/nhess-25-1681-2025","text":"Publisher Index Page"},{"id":486513,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.34909539011298,\n              19.523234716050013\n            ],\n            [\n              -155.34909539011298,\n              19.22327113116394\n            ],\n            [\n              -154.805338823834,\n              19.22327113116394\n            ],\n            [\n              -154.805338823834,\n              19.523234716050013\n            ],\n            [\n              -155.34909539011298,\n              19.523234716050013\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2025-05-12","publicationStatus":"PW","contributors":{"authors":[{"text":"Hickey, James","contributorId":355777,"corporation":false,"usgs":false,"family":"Hickey","given":"James","affiliations":[{"id":84830,"text":"Department of Earth and Environmental Sciences, University of Exeter, UK","active":true,"usgs":false}],"preferred":false,"id":938130,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Young, James","contributorId":355778,"corporation":false,"usgs":false,"family":"Young","given":"James","affiliations":[{"id":84831,"text":"Department of Computer Science, University of Exeter, UK","active":true,"usgs":false}],"preferred":false,"id":938131,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Spruce, Michelle","contributorId":355779,"corporation":false,"usgs":false,"family":"Spruce","given":"Michelle","affiliations":[{"id":84833,"text":"Liverpool Business School, Liverpool John Moores University, UK","active":true,"usgs":false}],"preferred":false,"id":938132,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pandit, Ravi","contributorId":355780,"corporation":false,"usgs":false,"family":"Pandit","given":"Ravi","affiliations":[{"id":84834,"text":"Institute for Data Science and Artificial Intelligence, University of Exeter, UK","active":true,"usgs":false}],"preferred":false,"id":938133,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Williams, Hywel","contributorId":355781,"corporation":false,"usgs":false,"family":"Williams","given":"Hywel","affiliations":[{"id":84831,"text":"Department of Computer Science, University of Exeter, UK","active":true,"usgs":false}],"preferred":false,"id":938134,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Arthur, Rudy","contributorId":355782,"corporation":false,"usgs":false,"family":"Arthur","given":"Rudy","affiliations":[{"id":84831,"text":"Department of Computer Science, University of Exeter, UK","active":true,"usgs":false}],"preferred":false,"id":938135,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stovall, Wendy K. 0000-0003-2518-2595","orcid":"https://orcid.org/0000-0003-2518-2595","contributorId":214673,"corporation":false,"usgs":true,"family":"Stovall","given":"Wendy K.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":938136,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Head, Matthew","contributorId":331805,"corporation":false,"usgs":false,"family":"Head","given":"Matthew","email":"","affiliations":[{"id":16984,"text":"University of Illinois at Urbana-Champaign","active":true,"usgs":false}],"preferred":false,"id":938137,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70265089,"text":"70265089 - 2025 - Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders","interactions":[],"lastModifiedDate":"2025-04-01T15:19:37.845971","indexId":"70265089","displayToPublicDate":"2025-03-31T10:10:48","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3841,"text":"Journal of Applied Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders","docAbstract":"<p><span>The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) has developed a new method to continuously monitor lava lake elevations. Since 2018, HVO has stationed a laser rangefinder on Kīlauea’s caldera rim. The instrument automatically measures lava lake elevation each second, with centimeter accuracy. A stream of elevation data flows to HVO’s database and public website, contributing a valuable channel to HVO’s volcano monitoring network. The data display is intuitive for users, providing essential information with a new level of clarity. HVO has used this method to track Kīlauea’s changing lava lake elevations over a series of eruptions, and the time series data show several volcanic processes: crater refilling, gas pistoning, lava lake surface behavior, and endogenous crater floor uplift. This technique is versatile, nimble, and easy to use. Continuous laser rangefinders may also prove useful for tracking lava lakes elsewhere, and for monitoring other hazards such as growing lava domes and debris flows.</span></p>","language":"English","publisher":"Springer Nature","doi":"10.1186/s13617-025-00152-5","usgsCitation":"Younger, E.F., Tollett, W., and Patrick, M.R., 2025, Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders: Journal of Applied Volcanology, v. 14, 4, 17 p., https://doi.org/10.1186/s13617-025-00152-5.","productDescription":"4, 17 p.","ipdsId":"IP-170275","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":488670,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/s13617-025-00152-5","text":"Publisher Index Page"},{"id":484068,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.31226314039785,\n              19.439663913303676\n            ],\n            [\n              -155.31226314039785,\n              19.385937325516892\n            ],\n            [\n              -155.2364870703903,\n              19.385937325516892\n            ],\n            [\n              -155.2364870703903,\n              19.439663913303676\n            ],\n            [\n              -155.31226314039785,\n              19.439663913303676\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"14","noUsgsAuthors":false,"publicationDate":"2025-03-31","publicationStatus":"PW","contributors":{"authors":[{"text":"Younger, Edward F. 0000-0002-1493-3069","orcid":"https://orcid.org/0000-0002-1493-3069","contributorId":215132,"corporation":false,"usgs":true,"family":"Younger","given":"Edward","email":"","middleInitial":"F.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932512,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tollett, William 0000-0001-9646-0244","orcid":"https://orcid.org/0000-0001-9646-0244","contributorId":215618,"corporation":false,"usgs":true,"family":"Tollett","given":"William","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932513,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":932514,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70266002,"text":"70266002 - 2025 - Complex staged emplacement of a basaltic lava: The example of the July 1974 flow of Kīlauea","interactions":[],"lastModifiedDate":"2025-04-23T14:27:13.610544","indexId":"70266002","displayToPublicDate":"2025-03-31T09:21:18","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Complex staged emplacement of a basaltic lava: The example of the July 1974 flow of Kīlauea","docAbstract":"<p><span>Basaltic lava flows can be highly destructive. Forecasting the future path and/or behavior of an active lava flow is challenging because topography is often poorly constrained and lava has a complex rheology and emplacement history. Preserved lavas are an important source of information which, combined with observations of active flows, underpins conceptual models of lava flow emplacement. However, the value of preserved lavas is limited because pre-eruptive topography and, thus, syn-eruptive lava flow geometry are usually not known. Here, we use tree-mold data to constrain pre-eruptive topography and syn-eruptive lava flow geometry of the July 1974 flow of Kīlauea (USA). Tree molds, which are formed after advancing lava encloses standing trees, preserve the lava inundation height and the final preserved thickness of lava. We used data from 282 tree molds to reconstruct the temporal and spatial evolution of the ~ 2.1&nbsp;km-long July 1974 flow. The tree mold dataset yields a detailed dynamic picture of staged emplacement, separated by intervals of ponding. In some ponded areas, flow depth during emplacement (~ 5&nbsp;m) was twice the preserved thickness of the final lava (2–3&nbsp;m). Drainage of the ponds led to episodic surges in flow advancement, decoupled from fluctuations in vent discharge rate. We infer that the final breakout occurred after the cessation of fountaining. Such complex emplacement histories may be common for pāhoehoe lavas at Kīlauea and elsewhere in situations where the terrain is of variable slope, and/or where lava is temporarily perched and stored.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00445-025-01817-0","usgsCitation":"Biass, S., Houghton, B.F., Llewellin, E.W., Curran, K., Thordarson, T., Orr, T., Parcheta, C., and Mouginis-Mark, P.J., 2025, Complex staged emplacement of a basaltic lava: The example of the July 1974 flow of Kīlauea: Bulletin of Volcanology, v. 87, 30, 14 p., https://doi.org/10.1007/s00445-025-01817-0.","productDescription":"30, 14 p.","ipdsId":"IP-106014","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":488501,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s00445-025-01817-0","text":"Publisher Index Page"},{"id":484914,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilaueau volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.28799286883776,\n              19.435261686847895\n            ],\n            [\n              -155.28799286883776,\n              19.272560860056274\n            ],\n            [\n              -155.1179644435753,\n              19.272560860056274\n            ],\n            [\n              -155.1179644435753,\n              19.435261686847895\n            ],\n            [\n              -155.28799286883776,\n              19.435261686847895\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"87","noUsgsAuthors":false,"publicationDate":"2025-03-31","publicationStatus":"PW","contributors":{"authors":[{"text":"Biass, Sebastian","contributorId":353667,"corporation":false,"usgs":false,"family":"Biass","given":"Sebastian","affiliations":[{"id":84453,"text":"University of Geneva, Geneva, Switzerland","active":true,"usgs":false}],"preferred":false,"id":934281,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Houghton, Bruce F. 0000-0002-7532-9770","orcid":"https://orcid.org/0000-0002-7532-9770","contributorId":140077,"corporation":false,"usgs":false,"family":"Houghton","given":"Bruce","email":"","middleInitial":"F.","affiliations":[{"id":6977,"text":"University of Hawai`i at Hilo","active":true,"usgs":false},{"id":13351,"text":"University of Hawaii Cooperative Studies Unit","active":true,"usgs":false}],"preferred":false,"id":934282,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Llewellin, Edward W.","contributorId":353668,"corporation":false,"usgs":false,"family":"Llewellin","given":"Edward","middleInitial":"W.","affiliations":[{"id":25252,"text":"Durham University","active":true,"usgs":false}],"preferred":false,"id":934283,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Curran, Kristine C","contributorId":353669,"corporation":false,"usgs":false,"family":"Curran","given":"Kristine C","affiliations":[{"id":39036,"text":"University of Hawaii at Manoa","active":true,"usgs":false}],"preferred":false,"id":934284,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Thordarson, Thorvaldur","contributorId":197925,"corporation":false,"usgs":false,"family":"Thordarson","given":"Thorvaldur","email":"","affiliations":[{"id":35089,"text":"Institute of Earth Sciences, Nordvulk, University of Iceland","active":true,"usgs":false}],"preferred":false,"id":934285,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Orr, Tim R. 0000-0003-1157-7588","orcid":"https://orcid.org/0000-0003-1157-7588","contributorId":26365,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":934286,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Parcheta, Carolyn 0000-0001-6556-4630 cparcheta@usgs.gov","orcid":"https://orcid.org/0000-0001-6556-4630","contributorId":215617,"corporation":false,"usgs":true,"family":"Parcheta","given":"Carolyn","email":"cparcheta@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":934287,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Mouginis-Mark, Peter J. 0000-0002-7173-6141","orcid":"https://orcid.org/0000-0002-7173-6141","contributorId":36793,"corporation":false,"usgs":false,"family":"Mouginis-Mark","given":"Peter","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":934288,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70263582,"text":"70263582 - 2025 - International data gaps at the Center for Engineering Strong Motion Data","interactions":[],"lastModifiedDate":"2025-02-18T16:53:20.52639","indexId":"70263582","displayToPublicDate":"2024-12-01T10:50:55","publicationYear":"2025","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"International data gaps at the Center for Engineering Strong Motion Data","docAbstract":"<p>The Center for Engineering Strong Motion Data (CESMD) is utilized by seismologists, engineers, and disaster management professionals in the US and has historically achieved and distributed waveforms from across the globe for significant earthquakes. The increased access to the waveforms via Web API (Application Programming Interface) offers a unique opportunity to provide the community complete datasets, sampling a variety of tectonic environments and geologic conditions, increasing the number of available ground motion records for use in ground motion models (GMMs) and improving the accuracy of earthquake engineering evaluations. The objective of this study is to programmatically identify gaps in global event data from the past decade and backfill missing data gaps at CESMD. We first compare the CESMD catalog with the Advanced National Seismic System (ANSS) Comprehensive Earthquake Catalog identifying regions and time periods where strong-motion data is limited or inadequate. To backfill datasets at CESMD for significant events, we pinpoint regions and time intervals that lack information, creating a list of events for which we’d like to obtain data. An important facet of this work is identifying the source of data and metadata across earthquake repositories around the world and integrating these data repositories into our current strong-motion data processing workflow. In parallel with these newly processed datasets, we are developing a script to produce data origination citations to include provenance and attribution information to associate with respective datasets at CESMD. We showcase our methodology for identifying and filling data gaps at CESMD using three case studies (the 2018 Anchorage Alaska earthquake sequence, seismicity associated with the 2018 Hawaiian Kilauea volcano eruption, and several earthquakes in Turkey) and then outline our strategy to apply our data gap backfilling methods on an international scale.</p>","conferenceTitle":"18th World Conference on Earth Engineering 2024","conferenceDate":"June 30-Jul 5, 2024","conferenceLocation":"Milan, Italy","language":"English","publisher":"International Association for Earthquake Engineering","usgsCitation":"Shao, H., Brody, J., Schleicher, L.S., Marano, K., Steidl, J.H., Thompson, E.M., Hearne, M., and Blair, J., 2025, International data gaps at the Center for Engineering Strong Motion Data, 18th World Conference on Earth Engineering 2024, Milan, Italy, June 30-Jul 5, 2024, 12 p.","productDescription":"12 p.","ipdsId":"IP-162021","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":482092,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://proceedings-wcee.org/view.html?id=24960&conference=18WCEE"},{"id":482172,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Shao, Han 0000-0003-3906-0943","orcid":"https://orcid.org/0000-0003-3906-0943","contributorId":333675,"corporation":false,"usgs":true,"family":"Shao","given":"Han","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927427,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brody, Jeff 0000-0001-8324-1261","orcid":"https://orcid.org/0000-0001-8324-1261","contributorId":201880,"corporation":false,"usgs":true,"family":"Brody","given":"Jeff","email":"","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927428,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schleicher, Lisa Sue 0000-0001-6528-1753","orcid":"https://orcid.org/0000-0001-6528-1753","contributorId":264892,"corporation":false,"usgs":true,"family":"Schleicher","given":"Lisa","email":"","middleInitial":"Sue","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927429,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marano, Kristin 0000-0002-0420-2748 kmarano@usgs.gov","orcid":"https://orcid.org/0000-0002-0420-2748","contributorId":207906,"corporation":false,"usgs":true,"family":"Marano","given":"Kristin","email":"kmarano@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":927431,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Steidl, Jamison Haase 0000-0003-0612-7654","orcid":"https://orcid.org/0000-0003-0612-7654","contributorId":239709,"corporation":false,"usgs":true,"family":"Steidl","given":"Jamison","email":"","middleInitial":"Haase","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927430,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thompson, Eric M. 0000-0002-6943-4806 emthompson@usgs.gov","orcid":"https://orcid.org/0000-0002-6943-4806","contributorId":150897,"corporation":false,"usgs":true,"family":"Thompson","given":"Eric","email":"emthompson@usgs.gov","middleInitial":"M.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":927432,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hearne, Mike 0000-0002-8225-2396 mhearne@usgs.gov","orcid":"https://orcid.org/0000-0002-8225-2396","contributorId":4659,"corporation":false,"usgs":true,"family":"Hearne","given":"Mike","email":"mhearne@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":927433,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Blair, James Luke 0000-0003-1678-5634","orcid":"https://orcid.org/0000-0003-1678-5634","contributorId":333670,"corporation":false,"usgs":true,"family":"Blair","given":"James Luke","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":927434,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70261271,"text":"70261271 - 2024 - Awakening of Maunaloa linked to melt shared from Kilauea’s mantle source","interactions":[],"lastModifiedDate":"2024-12-04T15:22:55.307538","indexId":"70261271","displayToPublicDate":"2024-11-16T08:12:31","publicationYear":"2024","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Awakening of Maunaloa linked to melt shared from Kilauea’s mantle source","docAbstract":"<p>Maunaloa—the largest active volcano on Earth—erupted in 2022 after its longest known repose period (~38 years) and two decades of volcanic unrest. This eruptive hiatus at Maunaloa encompasses most of the ~35-year-long Puʻuʻōʻō eruption of neighboring Kīlauea, which ended in 2018 with a collapse of the summit caldera and an unusually voluminous (~1 km<sup>3</sup>) rift eruption. A long-term pattern of such anticorrelated eruptive behavior suggests that a magmatic connection exists between these volcanoes within the asthenospheric mantle source and melting region, the lithospheric mantle, and/or the volcanic edifice. The exact nature of this connection is enigmatic. In the past, the distinct compositions of lavas from Kīlauea and Maunaloa were thought to require completely separate magma pathways from the mantle source of each volcano to the surface. Here, we use a nearly 200-yr record of lava chemistry from both volcanoes to demonstrate that melt from a shared mantle source within the Hawaiian plume may be transported alternately to Kīlauea or Maunaloa on a timescale of decades. This process led to a correlated temporal variation in <sup>206</sup>Pb/<sup>204</sup>Pb and <sup>87</sup>Sr/<sup>86</sup>Sr at these volcanoes since the early 19th century with each becoming more active when it received melt from the shared source. Ratios of highly over moderately incompatible trace elements (e.g., Nb/Y) at Kīlauea reached a minimum from ~2000 to 2010, which coincides with an increase in seismicity and inflation at the summit of Maunaloa. Thereafter, a reversal in Nb/Y at Kīlauea signals a decline in the degree of mantle partial melting at this volcano and suggests that melt from the shared source is now being diverted from Kīlauea to Maunaloa for the first time since the early to mid-20th century. These observations link a mantle-related shift in melt generation and transport at Kīlauea to the awakening of Maunaloa in 2002 and its eruption in 2022. Monitoring of lava chemistry is a potential tool that may be used to forecast the behavior (e.g., eruption rate and frequency) of these adjacent volcanoes on a timescale of decades. A future increase in eruptive activity at Maunaloa is likely if the temporal increase in Nb/Y continues at Kīlauea.</p>","language":"English","publisher":"Oxford University Press","doi":"10.1093/petrology/egae121","usgsCitation":"Pietruszka, A., Heaton, D.E., Marske, J.P., Norman, M.D., Robbins, M.G., Mershon, R.B., Lynn, K.J., Downs, D.T., Steiner, A.R., Rhodes, J.M., and Garcia, M.O., 2024, Awakening of Maunaloa linked to melt shared from Kilauea’s mantle source: Journal of Petrology, v. 65, no. 12, egae121, 9 p., https://doi.org/10.1093/petrology/egae121.","productDescription":"egae121, 9 p.","ipdsId":"IP-169683","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":466762,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/petrology/egae121","text":"Publisher Index Page"},{"id":464749,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kīlauea volcano, Maunaloa volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.62647011347312,\n              19.636068332660543\n            ],\n            [\n              -155.62647011347312,\n              19.326511618337022\n            ],\n            [\n              -155.16252314077784,\n              19.326511618337022\n            ],\n            [\n              -155.16252314077784,\n              19.636068332660543\n            ],\n            [\n              -155.62647011347312,\n              19.636068332660543\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"65","issue":"12","noUsgsAuthors":false,"publicationDate":"2024-11-16","publicationStatus":"PW","contributors":{"authors":[{"text":"Pietruszka, Aaron J.","contributorId":346909,"corporation":false,"usgs":false,"family":"Pietruszka","given":"Aaron J.","affiliations":[{"id":39036,"text":"University of Hawaii at Manoa","active":true,"usgs":false}],"preferred":false,"id":920179,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heaton, Daniel E.","contributorId":172800,"corporation":false,"usgs":false,"family":"Heaton","given":"Daniel","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":920180,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Marske, Jared P.","contributorId":172801,"corporation":false,"usgs":false,"family":"Marske","given":"Jared","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":920181,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Norman, Marc D.","contributorId":344700,"corporation":false,"usgs":false,"family":"Norman","given":"Marc","email":"","middleInitial":"D.","affiliations":[{"id":16807,"text":"Australian National University","active":true,"usgs":false}],"preferred":false,"id":920182,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Robbins, Mahinaokalani G.","contributorId":346912,"corporation":false,"usgs":false,"family":"Robbins","given":"Mahinaokalani","email":"","middleInitial":"G.","affiliations":[{"id":39036,"text":"University of Hawaii at Manoa","active":true,"usgs":false}],"preferred":false,"id":920183,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mershon, Reed B.","contributorId":346915,"corporation":false,"usgs":false,"family":"Mershon","given":"Reed","email":"","middleInitial":"B.","affiliations":[{"id":39036,"text":"University of Hawaii at Manoa","active":true,"usgs":false}],"preferred":false,"id":920184,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lynn, Kendra J. 0000-0001-7886-4376","orcid":"https://orcid.org/0000-0001-7886-4376","contributorId":290327,"corporation":false,"usgs":true,"family":"Lynn","given":"Kendra","email":"","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":920185,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":920186,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Steiner, Arron R.","contributorId":346918,"corporation":false,"usgs":false,"family":"Steiner","given":"Arron","email":"","middleInitial":"R.","affiliations":[{"id":37380,"text":"Washington State University","active":true,"usgs":false}],"preferred":false,"id":920187,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Rhodes, J. Michael","contributorId":215130,"corporation":false,"usgs":false,"family":"Rhodes","given":"J.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":920188,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Garcia, Michael O.","contributorId":225524,"corporation":false,"usgs":false,"family":"Garcia","given":"Michael","email":"","middleInitial":"O.","affiliations":[{"id":36402,"text":"University of Hawaii","active":true,"usgs":false}],"preferred":false,"id":920189,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70260964,"text":"70260964 - 2024 - Depths in a day - A new era of rapid-response Raman-based barometry using fluid inclusions","interactions":[],"lastModifiedDate":"2024-12-10T15:38:41.563856","indexId":"70260964","displayToPublicDate":"2024-11-07T09:57:46","publicationYear":"2024","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Depths in a day - A new era of rapid-response Raman-based barometry using fluid inclusions","docAbstract":"<p>Rapid-response petrological monitoring is a major advance for volcano observatories, allowing them to build and validate models of plumbing systems that supply eruptions in near-real-time. The depth of magma storage has recently been identified as high-priority information for volcanic observatories, yet this information is not currently obtainable via petrological monitoring methods on timescales relevant to eruption response. Fluid inclusion barometry (using micro-thermometry or Raman spectroscopy) is a well-established petrological method to estimate magma storage depths and has been proposed to have potential as a rapid-response monitoring tool, although this has not been formally demonstrated. To address this deficiency, we performed a near-real-time rapid-response simulation for the September 2023 eruption of Kīlauea, Hawaiʻi. We show that Raman-based fluid inclusion barometry can robustly determine reservoir depths within a day of receiving samples — a transformative timescale that has not previously been achieved by petrological methods. Fluid inclusion barometry using micro-thermometric techniques has typically been limited to systems with relatively deep magma storage (&gt;0.4 g/cm<sup>3</sup> or &gt;7 km) where measurements of CO<sub>2</sub> density are easy and accurate because the CO<sub>2</sub> fluid homogenizes into the liquid phase. Improvements of the accuracy of Raman spectroscopy measurements of fluids with low CO<sub>2</sub> density over the past couple of decades has enabled measurements of fluid inclusions from shallower magmatic systems. However, one caveat of examining shallower systems is that the fraction of H<sub>2</sub>O in the fluid may be too high to reliably convert CO<sub>2</sub> density to pressure. To test the global applicability of rapid response fluid inclusion barometry, we compiled a global melt inclusion dataset (&gt;4000 samples) and calculate the fluid composition at the point of vapor saturation (⁠X<sub><sup>H</sup>2<sup>O⁠</sup></sub>). We show that fluid inclusions in crystal-hosts from mafic compositions (&lt;57 wt. % SiO<sub>2</sub>) — likely representative of magmas recharging many volcanic systems worldwide — trap fluids with X<sub><sup>H</sup>2<sup>O</sup></sub>&nbsp;low enough to make fluid inclusion barometry useful at many of the world’s most active and hazardous mafic volcanic systems (e.g., Iceland, Hawaiʻi, Galápagos Islands, East African Rift, Réunion, Canary Islands, Azores, Cabo Verde).</p>","language":"English","publisher":"Oxford Academic","doi":"10.1093/petrology/egae119","usgsCitation":"DeVitre, C., Wieser, P.E., Bearden, A.T., Richie, A., Rangel, B., Gleeson, M., Grimsich, J., Lynn, K.J., Downs, D.T., Deligne, N.I., and Mulliken, K.M., 2024, Depths in a day - A new era of rapid-response Raman-based barometry using fluid inclusions: Journal of Petrology, v. 65, no. 11, egae119, 15 p., https://doi.org/10.1093/petrology/egae119.","productDescription":"egae119, 15 p.","ipdsId":"IP-158109","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":466776,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/petrology/egae119","text":"Publisher Index Page"},{"id":464235,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.2575579892722,\n              19.41802727097236\n            ],\n            [\n              -155.2575579892722,\n              19.40813592330987\n            ],\n            [\n              -155.2414055520364,\n              19.40813592330987\n            ],\n            [\n              -155.2414055520364,\n              19.41802727097236\n            ],\n            [\n              -155.2575579892722,\n              19.41802727097236\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"65","issue":"11","noUsgsAuthors":false,"publicationDate":"2024-11-07","publicationStatus":"PW","contributors":{"authors":[{"text":"DeVitre, Charlotte","contributorId":346229,"corporation":false,"usgs":false,"family":"DeVitre","given":"Charlotte","email":"","affiliations":[{"id":13243,"text":"University of California Berkeley","active":true,"usgs":false}],"preferred":false,"id":918713,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wieser, Penny E. 0000-0002-1070-8323","orcid":"https://orcid.org/0000-0002-1070-8323","contributorId":272601,"corporation":false,"usgs":false,"family":"Wieser","given":"Penny","email":"","middleInitial":"E.","affiliations":[{"id":27136,"text":"University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":918714,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bearden, Alexander T.","contributorId":346329,"corporation":false,"usgs":false,"family":"Bearden","given":"Alexander","email":"","middleInitial":"T.","affiliations":[{"id":36942,"text":"University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":918715,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Richie, Araela","contributorId":346330,"corporation":false,"usgs":false,"family":"Richie","given":"Araela","email":"","affiliations":[{"id":36942,"text":"University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":918716,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rangel, Berenise","contributorId":346222,"corporation":false,"usgs":false,"family":"Rangel","given":"Berenise","email":"","affiliations":[{"id":13243,"text":"University of California Berkeley","active":true,"usgs":false}],"preferred":false,"id":918717,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gleeson, Matthew","contributorId":346331,"corporation":false,"usgs":false,"family":"Gleeson","given":"Matthew","email":"","affiliations":[{"id":36942,"text":"University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":918718,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Grimsich, John","contributorId":346332,"corporation":false,"usgs":false,"family":"Grimsich","given":"John","email":"","affiliations":[{"id":36942,"text":"University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":918719,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Lynn, Kendra J. 0000-0001-7886-4376","orcid":"https://orcid.org/0000-0001-7886-4376","contributorId":290327,"corporation":false,"usgs":true,"family":"Lynn","given":"Kendra","email":"","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":918720,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":918721,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Deligne, Natalia I. 0000-0001-9221-8581","orcid":"https://orcid.org/0000-0001-9221-8581","contributorId":257389,"corporation":false,"usgs":true,"family":"Deligne","given":"Natalia","email":"","middleInitial":"I.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":918722,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Mulliken, Katherine M. 0000-0003-4190-5060","orcid":"https://orcid.org/0000-0003-4190-5060","contributorId":217810,"corporation":false,"usgs":false,"family":"Mulliken","given":"Katherine","email":"","middleInitial":"M.","affiliations":[{"id":16126,"text":"Alaska Division of Geological and Geophysical Surveys","active":true,"usgs":false}],"preferred":false,"id":918723,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70260968,"text":"70260968 - 2024 - Cave climate 100 meters below the surface in the pseudokarst of the Kilauea  Southwest Rift Zone, Hawaii","interactions":[],"lastModifiedDate":"2024-11-18T18:04:01.589627","indexId":"70260968","displayToPublicDate":"2024-10-25T09:43:53","publicationYear":"2024","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Cave climate 100 meters below the surface in the pseudokarst of the Kilauea  Southwest Rift Zone, Hawaii","docAbstract":"Kīlauea volcano hosts numerous pit craters that are inferred to have formed in competent bedrock (lava flows with minor tephra and other sediments), including Wood Valley Pit Crater. The Wood Valley Pit Crater is a 50-meter-deep, nearly circular pit that includes access to a cave entrance, which provides an opportunity to monitor cave climate throughout a cave that is ordinarily inaccessible. Cave climate observations in this volcanic pseudokarst area included cold trapping, \ncave breathing, possible effects from geothermal heating, and possible atmospheric thermal tide-induced cave fog.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"U.S. Geological Survey Karst Interest Group Proceedings","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"conferenceTitle":"U.S. Geological Survey Karst Interest Group Proceedings","conferenceDate":"October 22-24, 2024","conferenceLocation":"Nashville, Tennessee","language":"English","doi":"10.3133/ofr20241067","usgsCitation":"Titus, T.N., Cushing, G.E., Okubo, C., and Williams, K.E., 2024, Cave climate 100 meters below the surface in the pseudokarst of the Kilauea  Southwest Rift Zone, Hawaii, <i>in</i> U.S. Geological Survey Karst Interest Group Proceedings, Nashville, Tennessee, October 22-24, 2024, p. 56-62, https://doi.org/10.3133/ofr20241067.","productDescription":"7 p.","startPage":"56","endPage":"62","ipdsId":"IP-166493","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":466816,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"http://dx.doi.org/10.3133/ofr20241067","text":"Publisher Index Page"},{"id":464237,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea, Wood Valley Pit Crater Cave","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.4220120977722,\n              19.53356238259201\n            ],\n            [\n              -155.4220120977722,\n              19.284326520757034\n            ],\n            [\n              -155.06822248871657,\n              19.284326520757034\n            ],\n            [\n              -155.06822248871657,\n              19.53356238259201\n            ],\n            [\n              -155.4220120977722,\n              19.53356238259201\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Kuniansky, Eve L. 0000-0002-5581-0225 elkunian@usgs.gov","orcid":"https://orcid.org/0000-0002-5581-0225","contributorId":932,"corporation":false,"usgs":true,"family":"Kuniansky","given":"Eve","email":"elkunian@usgs.gov","middleInitial":"L.","affiliations":[{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":5064,"text":"Southeast Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":918743,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Spangler, Lawrence E. 0000-0003-3928-8809 spangler@usgs.gov","orcid":"https://orcid.org/0000-0003-3928-8809","contributorId":973,"corporation":false,"usgs":true,"family":"Spangler","given":"Lawrence","email":"spangler@usgs.gov","middleInitial":"E.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":918744,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Titus, Timothy N. 0000-0003-0700-4875 ttitus@usgs.gov","orcid":"https://orcid.org/0000-0003-0700-4875","contributorId":146,"corporation":false,"usgs":true,"family":"Titus","given":"Timothy","email":"ttitus@usgs.gov","middleInitial":"N.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":918736,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cushing, Glen E. 0000-0002-9673-8207 gcushing@usgs.gov","orcid":"https://orcid.org/0000-0002-9673-8207","contributorId":175449,"corporation":false,"usgs":true,"family":"Cushing","given":"Glen","email":"gcushing@usgs.gov","middleInitial":"E.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":918737,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Okubo, Chris 0000-0001-9776-8128 cokubo@usgs.gov","orcid":"https://orcid.org/0000-0001-9776-8128","contributorId":174209,"corporation":false,"usgs":true,"family":"Okubo","given":"Chris","email":"cokubo@usgs.gov","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":918738,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Williams, Kaj E. 0000-0003-1755-1872 kewilliams@usgs.gov","orcid":"https://orcid.org/0000-0003-1755-1872","contributorId":196988,"corporation":false,"usgs":true,"family":"Williams","given":"Kaj","email":"kewilliams@usgs.gov","middleInitial":"E.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":918739,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70263418,"text":"70263418 - 2024 - The value of hyperparameter optimization in phase-picking neural networks","interactions":[],"lastModifiedDate":"2025-02-10T15:49:35.78191","indexId":"70263418","displayToPublicDate":"2024-09-26T08:45:46","publicationYear":"2024","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":10542,"text":"The Seismic Record","active":true,"publicationSubtype":{"id":10}},"title":"The value of hyperparameter optimization in phase-picking neural networks","docAbstract":"<p>The effectiveness of using neural networks for picking seismic phase arrival times has been demonstrated through several case studies, and seismic monitoring programs are starting to adopt the technology into their workflows. However, published models were designed and trained using rather arbitrary choices of hyperparameters, limiting their performance. In this study, we use phase picks from both routine and template-matching analyses from multiple regions (Ridgecrest, California; Kilauea, Hawaii; Yellowstone, Wyoming-Montana-Idaho) to test a hyperparameter optimization scheme for phase-picking neural networks and to evaluate their performance. We show that a published model, namely PhaseNet (Zhu and Beroza, 2019), can be simplified and improved with reasonable effort and there are preferred choices of hyperparameters that increase the performance. We also show that models optimized based on the arrival times reported in routine event catalogs consistently perform well when picking arrival times of smaller events, which is crucial for certain tasks from microseismicity to explosion monitoring.</p>","language":"English","publisher":"GeoScienceWorld","doi":"10.1785/0320240025","usgsCitation":"Park, Y., and Shelly, D.R., 2024, The value of hyperparameter optimization in phase-picking neural networks: The Seismic Record, v. 4, no. 3, p. 231-239, https://doi.org/10.1785/0320240025.","productDescription":"9 p.","startPage":"231","endPage":"239","ipdsId":"IP-167611","costCenters":[{"id":78686,"text":"Geologic Hazards Science Center - Seismology / Geomagnetism","active":true,"usgs":true}],"links":[{"id":487286,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1785/0320240025","text":"Publisher Index Page"},{"id":481863,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Hawaii, Idaho, Montana, Wyoming","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-122.421439,37.869969],[-122.41847,37.852721],[-122.446316,37.861046],[-122.421439,37.869969]]],[[[-122.3785,37.826505],[-122.369941,37.832137],[-122.362661,37.807577],[-122.3785,37.826505]]],[[[-120.248484,33.999329],[-120.230001,34.010136],[-120.167306,34.008219],[-120.140362,34.025974],[-120.090182,34.019806],[-120.043259,34.035806],[-120.046575,34.000002],[-120.011123,33.979894],[-119.978876,33.983081],[-119.97026,33.944359],[-120.017715,33.936366],[-120.049682,33.914563],[-120.121817,33.895712],[-120.168974,33.91909],[-120.224461,33.989059],[-120.248484,33.999329]]],[[[-119.789798,34.05726],[-119.755521,34.056716],[-119.712576,34.043265],[-119.686507,34.019805],[-119.637742,34.013178],[-119.612226,34.021256],[-119.59324,34.049625],[-119.5667,34.053452],[-119.52064,34.034262],[-119.560464,33.99553],[-119.662825,33.985889],[-119.721206,33.959583],[-119.758141,33.959212],[-119.873358,33.980375],[-119.884896,34.008814],[-119.876329,34.032087],[-119.923337,34.069361],[-119.912857,34.077508],[-119.857304,34.071298],[-119.818742,34.052997],[-119.789798,34.05726]]],[[[-120.46258,34.042627],[-120.440248,34.036918],[-120.418768,34.052093],[-120.390906,34.051994],[-120.370176,34.074907],[-120.354982,34.059256],[-120.358608,34.050235],[-120.331161,34.049097],[-120.302122,34.023574],[-120.35532,34.017914],[-120.409368,34.032198],[-120.454134,34.028081],[-120.46258,34.042627]]],[[[-118.524531,32.895488],[-118.573522,32.969183],[-118.586928,33.008281],[-118.606559,33.01469],[-118.605534,33.030999],[-118.569013,33.029151],[-118.496811,32.933847],[-118.353504,32.821962],[-118.394565,32.823978],[-118.425634,32.800595],[-118.496298,32.851572],[-118.524531,32.895488]]],[[[-118.500212,33.449592],[-118.370323,33.409285],[-118.365094,33.388374],[-118.310213,33.335795],[-118.305084,33.310323],[-118.325244,33.299075],[-118.374768,33.320065],[-118.465368,33.326056],[-118.48877,33.356649],[-118.478465,33.38632],[-118.48875,33.419826],[-118.570927,33.439351],[-118.60403,33.47654],[-118.54453,33.474119],[-118.500212,33.449592]]],[[[-119.543842,33.280329],[-119.532941,33.284728],[-119.465717,33.259239],[-119.429559,33.228167],[-119.476029,33.21552],[-119.545872,33.233406],[-119.564971,33.24744],[-119.578942,33.278628],[-119.562042,33.271129],[-119.543842,33.280329]]],[[[-122.289533,42.007764],[-121.035195,41.993323],[-120.001058,41.995139],[-120.001014,38.999574],[-118.714312,38.102185],[-117.244917,37.030244],[-115.852908,35.96966],[-114.633013,35.002085],[-114.635176,34.875003],[-114.586842,34.835672],[-114.552682,34.766871],[-114.46862,34.707573],[-114.438739,34.621455],[-114.424202,34.610453],[-114.43009,34.596874],[-114.422382,34.580711],[-114.405228,34.569637],[-114.380838,34.529724],[-114.387187,34.462021],[-114.373719,34.446938],[-114.335372,34.450038],[-114.229686,34.368908],[-114.176909,34.349306],[-114.138167,34.300936],[-114.134768,34.268965],[-114.223384,34.205136],[-114.229715,34.186928],[-114.287294,34.170529],[-114.320777,34.138635],[-114.348052,34.134458],[-114.390565,34.110084],[-114.411681,34.110031],[-114.43338,34.088413],[-114.438266,34.022609],[-114.499883,33.961789],[-114.522002,33.955623],[-114.535478,33.934651],[-114.508558,33.906098],[-114.518555,33.889847],[-114.503017,33.867998],[-114.529385,33.851755],[-114.520465,33.827778],[-114.527161,33.816191],[-114.504863,33.760465],[-114.512348,33.734214],[-114.494197,33.707922],[-114.531523,33.675108],[-114.525783,33.616588],[-114.5403,33.580615],[-114.524599,33.552231],[-114.588239,33.502453],[-114.643302,33.416745],[-114.687953,33.417944],[-114.725282,33.405048],[-114.698035,33.352442],[-114.705241,33.327767],[-114.729904,33.305745],[-114.723259,33.288079],[-114.684363,33.276025],[-114.672401,33.26047],[-114.688205,33.247966],[-114.673715,33.219245],[-114.678729,33.162948],[-114.707819,33.091102],[-114.68902,33.084036],[-114.66506,33.033908],[-114.641622,33.046896],[-114.618788,33.027202],[-114.589778,33.026228],[-114.575161,33.036542],[-114.523578,33.030961],[-114.502871,33.011153],[-114.494212,32.974262],[-114.469039,32.972295],[-114.48092,32.935252],[-114.464448,32.913129],[-114.468971,32.845155],[-114.528849,32.796307],[-114.526856,32.757094],[-114.615733,32.729427],[-114.69879,32.744846],[-114.717665,32.721654],[-117.124862,32.534156],[-117.136664,32.618754],[-117.168866,32.671952],[-117.192967,32.687751],[-117.213068,32.687751],[-117.246069,32.669352],[-117.25757,32.72605],[-117.25497,32.786948],[-117.280971,32.822247],[-117.28217,32.839547],[-117.25617,32.859447],[-117.25447,32.900146],[-117.28077,33.012343],[-117.315278,33.093504],[-117.359484,33.164231],[-117.469794,33.296417],[-117.547693,33.365491],[-117.59588,33.386629],[-117.645582,33.440728],[-117.684584,33.461927],[-117.715349,33.460556],[-117.726486,33.483427],[-117.784888,33.541525],[-117.87679,33.592322],[-117.927091,33.605521],[-118.029694,33.676418],[-118.088896,33.729817],[-118.132698,33.753217],[-118.1755,33.763617],[-118.187701,33.749218],[-118.181367,33.717367],[-118.258687,33.703741],[-118.317205,33.712818],[-118.360505,33.736817],[-118.411211,33.741985],[-118.428407,33.774715],[-118.394376,33.804289],[-118.392107,33.840915],[-118.460611,33.969111],[-118.519514,34.027509],[-118.569235,34.04164],[-118.744952,34.032103],[-118.783433,34.021543],[-118.805114,34.001239],[-118.854653,34.034215],[-118.938081,34.043383],[-119.088536,34.09831],[-119.130169,34.100102],[-119.227743,34.161728],[-119.278644,34.266902],[-119.313034,34.275689],[-119.370356,34.319486],[-119.388249,34.317398],[-119.461036,34.374064],[-119.536957,34.395495],[-119.559459,34.413395],[-119.616862,34.420995],[-119.671866,34.416096],[-119.709067,34.395397],[-119.794771,34.417597],[-119.873971,34.408795],[-120.008077,34.460447],[-120.088591,34.460208],[-120.141165,34.473405],[-120.295051,34.470623],[-120.471376,34.447846],[-120.47661,34.475131],[-120.511421,34.522953],[-120.581293,34.556959],[-120.622575,34.554017],[-120.637805,34.56622],[-120.645739,34.581035],[-120.640244,34.604406],[-120.60045,34.70464],[-120.637415,34.755895],[-120.610266,34.85818],[-120.639283,34.880413],[-120.647328,34.901133],[-120.670835,34.904115],[-120.629931,35.061515],[-120.630957,35.101941],[-120.644311,35.139616],[-120.704203,35.173206],[-120.74887,35.177795],[-120.756086,35.160459],[-120.856047,35.206487],[-120.89679,35.247877],[-120.862684,35.346776],[-120.866099,35.393045],[-120.884757,35.430196],[-120.907937,35.449069],[-120.946546,35.446715],[-120.969436,35.460197],[-121.003359,35.46071],[-121.101595,35.548814],[-121.126027,35.593058],[-121.166712,35.635399],[-121.284973,35.674109],[-121.314632,35.71331],[-121.315786,35.75252],[-121.332449,35.783106],[-121.388053,35.823483],[-121.413146,35.855316],[-121.462264,35.885618],[-121.503112,36.000299],[-121.574602,36.025156],[-121.629634,36.114452],[-121.680145,36.165818],[-121.717176,36.195146],[-121.826425,36.24186],[-121.851967,36.277831],[-121.888491,36.30281],[-121.892917,36.340428],[-121.905446,36.358269],[-121.903195,36.393603],[-121.9416,36.485602],[-121.944666,36.521861],[-121.928769,36.523147],[-121.932508,36.559935],[-121.978592,36.580488],[-121.929666,36.636959],[-121.889064,36.601759],[-121.860604,36.611136],[-121.814462,36.682858],[-121.788278,36.803994],[-121.862266,36.931552],[-121.894667,36.961851],[-121.930069,36.97815],[-121.972771,36.954151],[-122.012373,36.96455],[-122.027174,36.95115],[-122.050122,36.948523],[-122.105976,36.955951],[-122.20618,37.013949],[-122.284882,37.101747],[-122.306139,37.116383],[-122.337071,37.117382],[-122.344029,37.144099],[-122.367085,37.172817],[-122.405073,37.195791],[-122.419113,37.24147],[-122.40085,37.359225],[-122.443687,37.435941],[-122.452087,37.48054],[-122.467888,37.49814],[-122.499289,37.495341],[-122.516689,37.52134],[-122.517187,37.590637],[-122.501386,37.599637],[-122.494085,37.644035],[-122.514483,37.780829],[-122.485783,37.790629],[-122.478083,37.810828],[-122.398139,37.80563],[-122.385323,37.790724],[-122.375854,37.734979],[-122.356784,37.729505],[-122.361749,37.71501],[-122.391374,37.708331],[-122.387626,37.67906],[-122.374291,37.662206],[-122.386072,37.637662],[-122.35531,37.615736],[-122.378545,37.605592],[-122.360219,37.592501],[-122.317676,37.590865],[-122.305895,37.575484],[-122.262698,37.572866],[-122.214264,37.538505],[-122.196593,37.537196],[-122.194957,37.522469],[-122.168449,37.504143],[-122.116112,37.505386],[-122.111998,37.528851],[-122.147014,37.588411],[-122.163049,37.667933],[-122.246826,37.72193],[-122.257134,37.745001],[-122.244938,37.750294],[-122.253753,37.761218],[-122.329159,37.783173],[-122.333711,37.809797],[-122.306222,37.827469],[-122.301313,37.847758],[-122.309986,37.892755],[-122.33453,37.908791],[-122.385908,37.908136],[-122.430087,37.963115],[-122.399832,37.956009],[-122.367582,37.978168],[-122.363655,38.014166],[-122.340093,38.003694],[-122.283478,38.022674],[-122.262861,38.0446],[-122.273006,38.07438],[-122.314567,38.115287],[-122.39638,38.149976],[-122.439577,38.116923],[-122.489974,38.112014],[-122.483757,38.071762],[-122.497828,38.019402],[-122.448413,37.988313],[-122.488665,37.966714],[-122.480484,37.945443],[-122.499465,37.939225],[-122.503064,37.928753],[-122.43925,37.88392],[-122.45005,37.871157],[-122.480811,37.873448],[-122.479151,37.825428],[-122.505383,37.822128],[-122.548986,37.836227],[-122.561487,37.851827],[-122.656519,37.904519],[-122.678474,37.906604],[-122.70264,37.89382],[-122.727297,37.904626],[-122.736898,37.925825],[-122.783244,37.951334],[-122.821383,37.996735],[-122.882114,38.025273],[-122.956811,38.02872],[-122.981776,38.009119],[-122.976764,37.99568],[-123.024066,37.994878],[-122.99242,38.041758],[-122.949074,38.15406],[-122.953629,38.17567],[-122.991953,38.233185],[-122.993235,38.239686],[-122.968569,38.242879],[-122.977082,38.267902],[-123.024333,38.310573],[-123.063671,38.302178],[-123.074684,38.322574],[-123.068265,38.359865],[-123.128825,38.450418],[-123.202277,38.494314],[-123.249797,38.511045],[-123.331899,38.565542],[-123.343338,38.590008],[-123.371876,38.607235],[-123.441774,38.699744],[-123.514784,38.741966],[-123.541837,38.776764],[-123.647387,38.845472],[-123.659846,38.872529],[-123.725367,38.917438],[-123.738886,38.95412],[-123.711149,38.977316],[-123.690095,39.031157],[-123.713392,39.108422],[-123.774998,39.212083],[-123.777368,39.237214],[-123.803848,39.278771],[-123.808772,39.324368],[-123.822085,39.343857],[-123.81469,39.446538],[-123.766475,39.552803],[-123.787417,39.604552],[-123.792659,39.684122],[-123.808208,39.710715],[-123.829545,39.723071],[-123.851714,39.832041],[-123.907664,39.863028],[-123.930047,39.909697],[-123.954952,39.922373],[-123.980031,39.962458],[-124.035904,40.013319],[-124.079983,40.029773],[-124.080709,40.06611],[-124.110549,40.103765],[-124.187874,40.130542],[-124.214895,40.160902],[-124.363414,40.260974],[-124.347853,40.314634],[-124.373599,40.392923],[-124.409591,40.438076],[-124.38494,40.48982],[-124.382816,40.519],[-124.329404,40.61643],[-124.158322,40.876069],[-124.112165,41.028173],[-124.125448,41.048504],[-124.153622,41.05355],[-124.165414,41.129822],[-124.158539,41.143021],[-124.1438,41.144686],[-124.106986,41.229678],[-124.072294,41.374844],[-124.066057,41.470258],[-124.081427,41.511228],[-124.081987,41.547761],[-124.101123,41.569192],[-124.100961,41.602499],[-124.135552,41.657307],[-124.147412,41.717955],[-124.164716,41.740126],[-124.17739,41.745756],[-124.19104,41.736079],[-124.255994,41.783014],[-124.230678,41.818681],[-124.208439,41.888192],[-124.203402,41.940964],[-124.211605,41.99846],[-122.289533,42.007764]]],[[[-155.778234,20.245743],[-155.746893,20.232325],[-155.732704,20.205392],[-155.653966,20.16736],[-155.600909,20.126573],[-155.558933,20.13157],[-155.443957,20.095318],[-155.282629,20.021969],[-155.204486,19.969438],[-155.086341,19.855399],[-155.094414,19.81491],[-155.087118,19.728013],[-155.006423,19.739286],[-154.981102,19.690687],[-154.983778,19.641647],[-154.950359,19.626461],[-154.947106,19.604856],[-154.903542,19.570622],[-154.809561,19.522377],[-154.838545,19.463642],[-154.980861,19.349291],[-155.159635,19.268375],[-155.205892,19.260907],[-155.264619,19.274213],[-155.296761,19.266289],[-155.360631,19.20893],[-155.417369,19.187858],[-155.453516,19.151952],[-155.51474,19.132501],[-155.512137,19.124296],[-155.557817,19.08213],[-155.557371,19.046565],[-155.596032,18.998833],[-155.601866,18.971572],[-155.625256,18.961951],[-155.672005,18.917466],[-155.687716,18.923358],[-155.693117,18.940542],[-155.726043,18.969437],[-155.763598,18.981837],[-155.806109,19.013967],[-155.88155,19.036644],[-155.903693,19.080777],[-155.921389,19.121183],[-155.888701,19.348031],[-155.924269,19.438794],[-155.922609,19.478611],[-155.95149,19.486649],[-155.978206,19.608159],[-155.997728,19.642816],[-156.028982,19.650098],[-156.029281,19.678908],[-156.064364,19.730766],[-156.049651,19.780452],[-155.976651,19.85053],[-155.925843,19.858928],[-155.892533,19.932162],[-155.831948,19.982775],[-155.828182,20.035424],[-155.866931,20.078652],[-155.899149,20.145728],[-155.906035,20.205157],[-155.890663,20.25524],[-155.853293,20.271548],[-155.778234,20.245743]]],[[[-160.125,21.95909],[-160.112746,21.995245],[-160.09645,22.001489],[-160.072123,22.003334],[-160.051992,21.983681],[-160.078393,21.955153],[-160.085787,21.927295],[-160.079065,21.89608],[-160.16162,21.864746],[-160.205851,21.779518],[-160.218044,21.783755],[-160.24961,21.815145],[-160.231028,21.886263],[-160.190158,21.923592],[-160.125,21.95909]]],[[[-159.431707,22.220015],[-159.40732,22.230555],[-159.353795,22.217669],[-159.315613,22.186817],[-159.295271,22.13039],[-159.321667,22.063411],[-159.337996,22.046575],[-159.333109,21.964176],[-159.446599,21.871647],[-159.490914,21.888898],[-159.610241,21.898356],[-159.671872,21.957038],[-159.758218,21.980694],[-159.788139,22.018411],[-159.786543,22.06369],[-159.748159,22.100388],[-159.726043,22.152171],[-159.66984,22.170782],[-159.583965,22.22668],[-159.554166,22.228212],[-159.507811,22.205987],[-159.488558,22.23317],[-159.431707,22.220015]]],[[[-157.014553,21.185503],[-156.991318,21.18551],[-156.974002,21.218503],[-156.946159,21.175963],[-156.903466,21.16421],[-156.896537,21.172208],[-156.867944,21.16452],[-156.771495,21.180053],[-156.742231,21.176214],[-156.736648,21.16188],[-156.712696,21.161547],[-156.726033,21.13236],[-156.794136,21.075796],[-156.877137,21.0493],[-157.079696,21.105835],[-157.254061,21.090601],[-157.313343,21.105755],[-157.293774,21.146127],[-157.254709,21.181376],[-157.25026,21.207739],[-157.263163,21.220873],[-157.257085,21.227268],[-157.202125,21.219298],[-157.185553,21.205602],[-157.014553,21.185503]]],[[[-156.544169,20.522802],[-156.586238,20.511711],[-156.603844,20.524372],[-156.668809,20.504738],[-156.703673,20.527237],[-156.6801,20.557021],[-156.576871,20.60657],[-156.543034,20.580115],[-156.556021,20.542657],[-156.540189,20.534741],[-156.544169,20.522802]]],[[[-156.612012,21.02477],[-156.606238,21.034371],[-156.592256,21.03288],[-156.549813,21.004939],[-156.474796,20.894546],[-156.386045,20.919563],[-156.324578,20.950184],[-156.230159,20.931936],[-156.230089,20.917864],[-156.166746,20.865646],[-156.132669,20.861369],[-156.115735,20.827301],[-156.090291,20.831872],[-156.059788,20.81054],[-156.003532,20.795545],[-155.984587,20.767496],[-155.991534,20.713654],[-156.053385,20.65432],[-156.081472,20.654387],[-156.142665,20.623605],[-156.210258,20.628518],[-156.302692,20.586199],[-156.377633,20.578427],[-156.415313,20.586099],[-156.423141,20.602079],[-156.444242,20.607941],[-156.448656,20.704739],[-156.464043,20.781667],[-156.501688,20.799933],[-156.537752,20.778408],[-156.631794,20.82124],[-156.688969,20.888673],[-156.697418,20.916368],[-156.680905,20.980262],[-156.642809,21.027583],[-156.612012,21.02477]]],[[[-157.010001,20.929757],[-156.897169,20.915395],[-156.837047,20.863575],[-156.808469,20.820396],[-156.838321,20.764575],[-156.909081,20.739533],[-156.96789,20.73508],[-156.994001,20.786671],[-156.991834,20.826603],[-157.010911,20.854476],[-157.054552,20.877219],[-157.061128,20.890635],[-157.05913,20.913407],[-157.010001,20.929757]]],[[[-158.044485,21.306011],[-158.1127,21.3019],[-158.1225,21.3224],[-158.111949,21.326622],[-158.125459,21.330264],[-158.1403,21.3738],[-158.1792,21.4043],[-158.192352,21.44804],[-158.233,21.4876],[-158.234314,21.540058],[-158.27951,21.575794],[-158.12561,21.586739],[-158.10672,21.596577],[-158.0639,21.6584],[-158.018127,21.699955],[-157.968628,21.712704],[-157.924591,21.651183],[-157.9238,21.6293],[-157.87735,21.575277],[-157.878601,21.560181],[-157.85614,21.560661],[-157.836945,21.529945],[-157.837372,21.512085],[-157.852625,21.499971],[-157.84099,21.459483],[-157.8163,21.4502],[-157.786513,21.415633],[-157.774455,21.421352],[-157.774905,21.453698],[-157.764572,21.461335],[-157.731777,21.455944],[-157.7386,21.4043],[-157.724324,21.403311],[-157.7089,21.3833],[-157.7106,21.3585],[-157.6971,21.3364],[-157.6518,21.3139],[-157.6537,21.302],[-157.7001,21.264],[-157.7142,21.2665],[-157.7122,21.2814],[-157.7213,21.2869],[-157.8096,21.2577],[-157.8457,21.29],[-157.89,21.3065],[-157.90482,21.329172],[-157.918939,21.318615],[-157.910925,21.305768],[-157.952263,21.306531],[-157.951881,21.318742],[-157.967971,21.327986],[-158.044485,21.306011]]],[[[-111.046689,42.001567],[-112.709375,42.000309],[-113.893261,41.988057],[-114.831077,42.002207],[-117.026222,42.000252],[-117.02678,43.829841],[-117.013954,43.859358],[-116.98294,43.86771],[-116.96247,43.928336],[-116.971835,43.962806],[-116.942944,43.987512],[-116.934485,44.021249],[-116.943361,44.035645],[-116.972504,44.048771],[-116.977351,44.085364],[-116.937835,44.096943],[-116.894309,44.158114],[-116.900103,44.176851],[-116.925392,44.191544],[-116.971675,44.197256],[-116.975905,44.242844],[-117.031862,44.248635],[-117.050057,44.22883],[-117.104208,44.27994],[-117.15706,44.25749],[-117.198147,44.273828],[-117.222647,44.297578],[-117.189842,44.335007],[-117.235117,44.373853],[-117.242675,44.396548],[-117.215072,44.427162],[-117.224104,44.483734],[-117.200237,44.492027],[-117.185386,44.519261],[-117.152406,44.531802],[-117.146032,44.568603],[-117.126009,44.581553],[-117.120522,44.614658],[-117.098221,44.640689],[-117.07912,44.692175],[-117.063824,44.703623],[-117.062273,44.727143],[-117.03827,44.748179],[-116.9368,44.782881],[-116.931099,44.804781],[-116.896249,44.84833],[-116.852427,44.887577],[-116.833632,44.928976],[-116.858313,44.978761],[-116.846103,44.999878],[-116.848037,45.021728],[-116.797329,45.060267],[-116.774847,45.105536],[-116.731216,45.139934],[-116.703607,45.239757],[-116.672733,45.283183],[-116.673793,45.321511],[-116.619057,45.39821],[-116.597447,45.41277],[-116.588195,45.44292],[-116.554829,45.46293],[-116.548676,45.510385],[-116.523638,45.54661],[-116.48297,45.577008],[-116.463504,45.615785],[-116.535396,45.691734],[-116.535698,45.734231],[-116.546643,45.750972],[-116.593004,45.778541],[-116.665344,45.781998],[-116.70845,45.825117],[-116.759787,45.816167],[-116.782676,45.825376],[-116.790151,45.849851],[-116.814142,45.877551],[-116.857254,45.904159],[-116.892935,45.974396],[-116.915989,45.995413],[-116.942656,46.061],[-116.981962,46.084915],[-116.978823,46.095731],[-116.959548,46.099058],[-116.92187,46.167808],[-116.962966,46.19968],[-116.958801,46.24232],[-116.991422,46.278467],[-116.986688,46.296662],[-117.020663,46.314793],[-117.027744,46.338751],[-117.060703,46.349015],[-117.062785,46.365287],[-117.046915,46.379577],[-117.034696,46.418318],[-117.042657,47.760857],[-117.032351,48.999188],[-104.048736,48.999877],[-104.039977,45.124988],[-104.040128,44.999987],[-104.057698,44.997431],[-104.053249,41.001406],[-111.046723,40.997959],[-111.046689,42.001567]]]]},\"properties\":{\"name\":\"California\",\"nation\":\"USA  \"}}]}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationDate":"2024-09-26","publicationStatus":"PW","contributors":{"authors":[{"text":"Park, Yongsoo","contributorId":350716,"corporation":false,"usgs":false,"family":"Park","given":"Yongsoo","affiliations":[{"id":48588,"text":"Los Alamos National Lab","active":true,"usgs":false}],"preferred":false,"id":926908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shelly, David R. 0000-0003-2783-5158 dshelly@usgs.gov","orcid":"https://orcid.org/0000-0003-2783-5158","contributorId":206750,"corporation":false,"usgs":true,"family":"Shelly","given":"David","email":"dshelly@usgs.gov","middleInitial":"R.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":926909,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70259404,"text":"70259404 - 2024 - Pulsing in the Ahu‘ailaʻau pond-spillway system during the 2018 Kilauea Eruption: A dynamical systems perspective","interactions":[],"lastModifiedDate":"2024-10-07T14:57:01.33837","indexId":"70259404","displayToPublicDate":"2024-05-10T09:53:16","publicationYear":"2024","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2290,"text":"Journal of Fluid Mechanics","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Pulsing in the Ahu‘ailāʻau Pond-Spillway System during the 2018 Kīlauea Eruption: A dynamical systems perspective","title":"Pulsing in the Ahu‘ailaʻau pond-spillway system during the 2018 Kilauea Eruption: A dynamical systems perspective","docAbstract":"<p><span>During the 2018 K</span><span class=\"inlineFormula\"><span class=\"alternatives\"><span class=\"mathjax-tex-wrapper\" data-mathjax-type=\"texmath\"><span class=\"tex-math mathjax-tex-math mathjax-on\"><span id=\"MathJax-Element-4-Frame\" class=\"MathJax\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>&amp;#x012B;</mtext></math>\"><span id=\"MathJax-Span-18\" class=\"math\"><span><span id=\"MathJax-Span-19\" class=\"mrow\"><span id=\"MathJax-Span-20\" class=\"mtext\">ī</span></span></span></span><span class=\"MJX_Assistive_MathML\">ī</span></span></span></span></span></span><span>lauea lower East Rift Zone eruption, lava from 24 fissures inundated more than 8000 acres of land, destroying more than 700 structures over three months. Eruptive activity eventually focused at a single vent characterized by a continuously fed lava pond that was drained by a narrow spillway into a much wider, slower channelized flow. The spillway exhibited intervals of ‘pulsing’ behaviour in which the lava depth and velocity were observed to oscillate on time scales of several minutes. At the time, this was attributed to variations in vesiculation originating at depth. Here, we construct a toy fluid dynamical model of the pond–spillway system, and present an alternative hypothesis in which pulsing is generated at the surface, within this system. We posit that the appearance of pulsing is due to a supercritical Hopf bifurcation driven by an increase in the Reynolds number. Asymptotics for the limit cycle near the bifurcation point are derived with averaging methods and compare favourably with the cycle periodicity. Because oscillations in the pond were not observable directly due to the elevation of the cone rim and an obscuring volcanic plume, we model the observations using a spatially averaged Saint-Venant model of the spillway forced by the pond oscillator. The predicted spillway cycle periodicity and waveforms compare favourably with observations made during the eruption. The unusually well-documented nature of this eruption enables estimation of the viscosity of the erupting lava.</span></p>","language":"English","publisher":"Cambridge University Press","doi":"10.1017/jfm.2024.155","usgsCitation":"Hyman, D.M., Denlinger, R.P., Dietterich, H., and Patrick, M.R., 2024, Pulsing in the Ahu‘ailaʻau pond-spillway system during the 2018 Kilauea Eruption: A dynamical systems perspective: Journal of Fluid Mechanics, v. 986, A37, 27 p., https://doi.org/10.1017/jfm.2024.155.","productDescription":"A37, 27 p.","ipdsId":"IP-159905","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":462664,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.45344099903247,\n              19.53857422753363\n            ],\n            [\n              -155.45344099903247,\n              19.237868372198022\n            ],\n            [\n              -155.14577713331886,\n              19.237868372198022\n            ],\n            [\n              -155.14577713331886,\n              19.53857422753363\n            ],\n            [\n              -155.45344099903247,\n              19.53857422753363\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"986","noUsgsAuthors":false,"publicationDate":"2024-05-10","publicationStatus":"PW","contributors":{"authors":[{"text":"Hyman, David M.R. 0000-0002-9607-7584","orcid":"https://orcid.org/0000-0002-9607-7584","contributorId":298460,"corporation":false,"usgs":false,"family":"Hyman","given":"David","email":"","middleInitial":"M.R.","affiliations":[{"id":64581,"text":"Center for the Study of Active Volcanoes, University of Hawaii at Hilo, Hawaiian Volcano Observatory","active":true,"usgs":false}],"preferred":false,"id":915176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Denlinger, Roger P. 0000-0003-0930-0635 roger@usgs.gov","orcid":"https://orcid.org/0000-0003-0930-0635","contributorId":2679,"corporation":false,"usgs":true,"family":"Denlinger","given":"Roger","email":"roger@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"preferred":true,"id":915177,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dietterich, Hannah R. 0000-0001-7898-4343","orcid":"https://orcid.org/0000-0001-7898-4343","contributorId":212771,"corporation":false,"usgs":true,"family":"Dietterich","given":"Hannah R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":915178,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":915179,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70261212,"text":"70261212 - 2024 - Decrease in seismic velocity observed prior to the 2018 eruption of Kilauea volcano with ambient seismic noise interferometry","interactions":[],"lastModifiedDate":"2024-12-02T15:33:58.377781","indexId":"70261212","displayToPublicDate":"2019-04-16T00:00:00","publicationYear":"2024","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Decrease in seismic velocity observed prior to the 2018 eruption of Kilauea volcano with ambient seismic noise interferometry","docAbstract":"The 2018 Kilauea eruption was a complex event that included deformation and eruption at the summit and along the middle and lower East Rift Zones. We use ambient seismic noise interferometry to measure time-lapse changes in seismic velocity of the volcanic edifice prior to the 2018 Kilauea Lower East Rift Zone eruption. Our results show that seismic velocities increase in relation to gradual inflation between 1 March and 20 April.  In the ten days prior to the May 3rd eruption, a rapid seismic velocity decrease occurs even though the summit is still undergoing inflation. We show that inter-eruptive inflation/deflation is correlated with surface deformation, while the velocity decrease prior to East Rift Zone eruption is likely due to accumulating damage induced by the pressure exerted by the magma reservoir on the surrounding edifice. The accumulating damage and subsequent decrease in bulk edifice strength likely facilitates the transport of magma from the summit reservoir to the Middle East Rift Zone.","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2018GL081609","usgsCitation":"Olivier, G., Brenguier, F., Carey, R.J., Okubo, P., and Donaldson, C., 2024, Decrease in seismic velocity observed prior to the 2018 eruption of Kilauea volcano with ambient seismic noise interferometry: Geophysical Research Letters, v. 46, no. 7, p. 3734-3744, https://doi.org/10.1029/2018GL081609.","productDescription":"11 p.","startPage":"3734","endPage":"3744","ipdsId":"IP-102999","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":467062,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2018gl081609","text":"Publisher Index Page"},{"id":464629,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.31292752524547,\n              19.45502623491619\n            ],\n            [\n              -155.31292752524547,\n              19.39548460880674\n            ],\n            [\n              -155.21913756133694,\n              19.39548460880674\n            ],\n            [\n              -155.21913756133694,\n              19.45502623491619\n            ],\n            [\n              -155.31292752524547,\n              19.45502623491619\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"46","issue":"7","noUsgsAuthors":false,"publicationDate":"2019-04-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Olivier, Gerrit","contributorId":346798,"corporation":false,"usgs":false,"family":"Olivier","given":"Gerrit","email":"","affiliations":[{"id":82967,"text":"Institute of Mine Seismology","active":true,"usgs":false}],"preferred":false,"id":919916,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brenguier, Florent","contributorId":346799,"corporation":false,"usgs":false,"family":"Brenguier","given":"Florent","email":"","affiliations":[{"id":82968,"text":"University of Grenoble","active":true,"usgs":false}],"preferred":false,"id":919917,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carey, Rebecca J.","contributorId":145530,"corporation":false,"usgs":false,"family":"Carey","given":"Rebecca","email":"","middleInitial":"J.","affiliations":[{"id":16141,"text":"University of Tasmania","active":true,"usgs":false}],"preferred":false,"id":919918,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Okubo, P. 0000-0002-0381-6051","orcid":"https://orcid.org/0000-0002-0381-6051","contributorId":49432,"corporation":false,"usgs":true,"family":"Okubo","given":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":919919,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Donaldson, C.","contributorId":346843,"corporation":false,"usgs":false,"family":"Donaldson","given":"C.","email":"","affiliations":[],"preferred":false,"id":919992,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70249313,"text":"70249313 - 2023 - Eruption of stagnant lava from an inactive perched lava lake","interactions":[],"lastModifiedDate":"2023-10-04T11:40:20.695469","indexId":"70249313","displayToPublicDate":"2023-09-23T06:37:37","publicationYear":"2023","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Eruption of stagnant lava from an inactive perched lava lake","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif text-s\"><div id=\"ab0005\" class=\"abstract author\" lang=\"en\"><div id=\"as0005\"><p id=\"sp0035\"><span>Lava flow&nbsp;hazards are usually thought to end when the erupting vent becomes inactive, but this is not always the case. At Kīlauea in August 2014, a spiny ʻaʻā flow erupted from the levee of a crusted perched lava lake that had been inactive for a month, and the surface of the lava lake subsided as the flow advanced downslope over the following few days. Topography constructed from oblique aerial photographs using structure-from-motion (SfM) software shows that the volume of the flow (∼68,000&nbsp;m</span><sup>3</sup><span>) closely matches the volume of&nbsp;subsidence&nbsp;of the crusted lava lake (∼64,000&nbsp;m</span><sup>3</sup>). The similarity of these volumes, along with the textural characteristics of the lava, shows that the lava that fed the flow had been stored beneath the surface of the perched lava lake, and that the flow was not generated by reactivation of the vent. This extends the duration of the local lava flow hazard presented by perched lava lakes and similar flow field structures that store lava, such as rootless shields. The flow probably occurred because the density of the lava beneath the crusted surface of the perched lava lake increased through loss of gas bubbles until it was able to penetrate the less-dense levee, which was composed of relatively vesicular overflows. The flow is thus equivalent to the lava seeps described previously at Kīlauea and elsewhere. We present a simple physical model for the pressure change at the base of a densifying body of lava, which we apply to this case study, and which could be applied to similar scenarios elsewhere.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2023.107912","usgsCitation":"Orr, T., Zoeller, M.H., Llewellin, E.W., and Patrick, M.R., 2023, Eruption of stagnant lava from an inactive perched lava lake: Journal of Volcanology and Geothermal Research, v. 442, 107912, 10 p., https://doi.org/10.1016/j.jvolgeores.2023.107912.","productDescription":"107912, 10 p.","ipdsId":"IP-144050","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":435171,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9XSM9RY","text":"USGS data release","linkHelpText":"Photogrammetry-derived digital elevation models and source images for an inactive perched lava lake formed at Pu&lsquo;u&lsquo;ō&lsquo;ō (Kīlauea) in 2014"},{"id":421579,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.4132210973184,\n              19.53367871894656\n            ],\n            [\n              -155.4132210973184,\n              19.201960712787056\n            ],\n            [\n              -155.04786914895982,\n              19.201960712787056\n            ],\n            [\n              -155.04786914895982,\n              19.53367871894656\n            ],\n            [\n              -155.4132210973184,\n              19.53367871894656\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"442","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Orr, Tim R. 0000-0003-1157-7588","orcid":"https://orcid.org/0000-0003-1157-7588","contributorId":26365,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":885077,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zoeller, Michael H. 0000-0003-4716-8567","orcid":"https://orcid.org/0000-0003-4716-8567","contributorId":214557,"corporation":false,"usgs":true,"family":"Zoeller","given":"Michael","email":"","middleInitial":"H.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":885078,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Llewellin, Edward W. 0000-0003-2165-7426","orcid":"https://orcid.org/0000-0003-2165-7426","contributorId":247599,"corporation":false,"usgs":false,"family":"Llewellin","given":"Edward","email":"","middleInitial":"W.","affiliations":[{"id":25252,"text":"Durham University","active":true,"usgs":false}],"preferred":true,"id":885079,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":885080,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70262886,"text":"70262886 - 2023 - Dynamics of the December 2020 ash-poor plume formed by lava-water interaction at the summit of Kilauea Volcano, Hawaii","interactions":[],"lastModifiedDate":"2025-01-27T17:34:03.218669","indexId":"70262886","displayToPublicDate":"2023-03-16T00:00:00","publicationYear":"2023","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1757,"text":"Geochemistry, Geophysics, Geosystems","active":true,"publicationSubtype":{"id":10}},"title":"Dynamics of the December 2020 ash-poor plume formed by lava-water interaction at the summit of Kilauea Volcano, Hawaii","docAbstract":"<p><span>On 20 December 2020, after more than 2&nbsp;years of quiescence at Kīlauea Volcano, Hawaiʻi, renewed volcanic activity in the summit crater caused boiling of the water lake over a period of ∼90&nbsp;min. The resulting water-rich, electrified plume rose to 11–13&nbsp;km above sea level, which is among the highest plumes on record for Kīlauea. Although conventional models would infer a high mass flux from explosive magma-water interaction, the plume was not associated with an infrasound signal indicative of “explosive” activity, nor did it produce a measurable ash-fall deposit. We use multisensor data to characterize lava-water interaction and plume generation during this opening phase of the 2020–21 eruption. Satellite, weather radar, and eyewitness observations revealed that the plume was rich in water vapor and hydrometeors but transported less ash than expected from its maximum height. Volcanic lightning flashes detected by ground-based cameras were confined to freezing altitudes of the upper cloud, suggesting that the ice formation drove the electrification of this plume. The low acoustic energy from lava-water interaction points to a weakly explosive style of hydrovolcanism. Heat transfer calculations show that the lava to water heat flux was sufficient to boil the lake within 90&nbsp;min. Limited mixing of lava and water inhibited major steam explosions and fine fragmentation. Results from one-dimensional plume modeling suggest that the models may underpredict plume height due to overestimation of crosswind air-entrainment. Our findings shed light on an unusual style of volcanism in which weakly explosive lava-water interaction generated an outsized plume.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2022GC010718","usgsCitation":"Cahalan, R.C., Mastin, L.G., Van Eaton, A.R., Hurwitz, S., Smith, A., Dufek, J., Solovitz, S.A., Patrick, M.R., Schmith, J., Parcheta, C., Thelen, W., and Downs, D.T., 2023, Dynamics of the December 2020 ash-poor plume formed by lava-water interaction at the summit of Kilauea Volcano, Hawaii: Geochemistry, Geophysics, Geosystems, v. 24, no. 3, e2022GC010718, 23 p., https://doi.org/10.1029/2022GC010718.","productDescription":"e2022GC010718, 23 p.","ipdsId":"IP-145500","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":489752,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2022gc010718","text":"Publisher Index Page"},{"id":481272,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.2803669612127,\n              19.458319847666203\n            ],\n            [\n              -155.2803669612127,\n              19.37101672587596\n            ],\n            [\n              -155.17107998542878,\n              19.37101672587596\n            ],\n            [\n              -155.17107998542878,\n              19.458319847666203\n            ],\n            [\n              -155.2803669612127,\n              19.458319847666203\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"24","issue":"3","noUsgsAuthors":false,"publicationDate":"2023-03-16","publicationStatus":"PW","contributors":{"authors":[{"text":"Cahalan, Ryan Cain 0000-0002-3322-0654","orcid":"https://orcid.org/0000-0002-3322-0654","contributorId":302355,"corporation":false,"usgs":true,"family":"Cahalan","given":"Ryan","email":"","middleInitial":"Cain","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":925179,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastin, Larry G. 0000-0002-4795-1992","orcid":"https://orcid.org/0000-0002-4795-1992","contributorId":265985,"corporation":false,"usgs":true,"family":"Mastin","given":"Larry","email":"","middleInitial":"G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925180,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Van Eaton, Alexa R. 0000-0001-6646-4594 avaneaton@usgs.gov","orcid":"https://orcid.org/0000-0001-6646-4594","contributorId":184079,"corporation":false,"usgs":true,"family":"Van Eaton","given":"Alexa","email":"avaneaton@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925181,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hurwitz, Shaul 0000-0001-5142-6886 shaulh@usgs.gov","orcid":"https://orcid.org/0000-0001-5142-6886","contributorId":2169,"corporation":false,"usgs":true,"family":"Hurwitz","given":"Shaul","email":"shaulh@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925182,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, Adam B.","contributorId":328715,"corporation":false,"usgs":false,"family":"Smith","given":"Adam B.","affiliations":[{"id":38790,"text":"Missouri Botanical Garden","active":true,"usgs":false}],"preferred":false,"id":925183,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dufek, Josef","contributorId":194001,"corporation":false,"usgs":false,"family":"Dufek","given":"Josef","email":"","affiliations":[],"preferred":false,"id":925184,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Solovitz, Stephen A. 0000-0001-7019-2958","orcid":"https://orcid.org/0000-0001-7019-2958","contributorId":257659,"corporation":false,"usgs":false,"family":"Solovitz","given":"Stephen","email":"","middleInitial":"A.","affiliations":[{"id":52077,"text":"Washington State University, Vancouver","active":true,"usgs":false}],"preferred":false,"id":925185,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925186,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Schmith, Jo 0000-0002-0912-7441","orcid":"https://orcid.org/0000-0002-0912-7441","contributorId":304399,"corporation":false,"usgs":true,"family":"Schmith","given":"Jo","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925187,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Parcheta, Carolyn 0000-0001-6556-4630 cparcheta@usgs.gov","orcid":"https://orcid.org/0000-0001-6556-4630","contributorId":215617,"corporation":false,"usgs":true,"family":"Parcheta","given":"Carolyn","email":"cparcheta@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925188,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Thelen, Weston 0000-0003-2534-5577","orcid":"https://orcid.org/0000-0003-2534-5577","contributorId":215530,"corporation":false,"usgs":true,"family":"Thelen","given":"Weston","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925189,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Downs, Drew T. 0000-0002-9056-1404 ddowns@usgs.gov","orcid":"https://orcid.org/0000-0002-9056-1404","contributorId":173516,"corporation":false,"usgs":true,"family":"Downs","given":"Drew","email":"ddowns@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":925190,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}}
,{"id":70259410,"text":"70259410 - 2022 - Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano","interactions":[],"lastModifiedDate":"2024-10-07T14:47:49.850068","indexId":"70259410","displayToPublicDate":"2022-11-24T09:40:22","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":9121,"text":"Frontiers Earth Science Journal","active":true,"publicationSubtype":{"id":10}},"title":"Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano","docAbstract":"<p><span>Real-time monitoring is crucial to assess hazards and mitigate risks of sustained volcanic eruptions that last hours to months or more. Sustained eruptions have been shown to produce a low frequency (infrasonic) form of jet noise. We analyze the lava fountaining at fissure 8 during the 2018 Lower East Rift Zone eruption of Kīlauea volcano, Hawaii, and connect changes in fountain properties with recorded infrasound signals from an array about 500&nbsp;m from the fountain using jet noise scaling laws and visual imagery. Video footage from the eruption reveals a change in lava fountain dynamics from a tall, distinct fountain at the beginning of June to a low fountain with a turbulent, out-pouring lava pond surrounded by a tephra cone by mid-June. During mid-June, the sound pressure level reaches a maximum, and peak frequency drops. We develop a model that uses jet noise scaling relationships to estimate changes in volcanic jet diameter and jet velocity from infrasound sound pressure levels and peak frequencies. The results of this model indicate a decrease in velocity in mid-June which coincides with the decrease in fountain height. Furthermore, the model results suggest an increase in jet diameter, which can be explained by the larger width of the fountain that resembles a turbulent lava pond compared to the distinct fountain at the beginning of June. The agreement between the infrasound-derived and visually observed changes in fountain dynamics suggests that jet noise scaling relationships can be used to monitor lava fountain dynamics using infrasound recordings.</span></p>","language":"English","publisher":"Frontiers Media","doi":"10.3389/feart.2022.1027408","usgsCitation":"Gestrich, J., Fee, D., Matoza, R., Lyons, J.J., Dietterich, H., Cigala, V., Kueppers, U., Patrick, M.R., and Parcheta, C., 2022, Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano: Frontiers Earth Science Journal, v. 10, 1027408, 18 p., https://doi.org/10.3389/feart.2022.1027408.","productDescription":"1027408, 18 p.","ipdsId":"IP-144544","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":467142,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3389/feart.2022.1027408","text":"Publisher Index Page"},{"id":462663,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.40616179843389,\n              19.510647106982844\n            ],\n            [\n              -155.40616179843389,\n              19.352324463279487\n            ],\n            [\n              -155.20934216439622,\n              19.352324463279487\n            ],\n            [\n              -155.20934216439622,\n              19.510647106982844\n            ],\n            [\n              -155.40616179843389,\n              19.510647106982844\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"10","noUsgsAuthors":false,"publicationDate":"2022-11-25","publicationStatus":"PW","contributors":{"authors":[{"text":"Gestrich, Julia","contributorId":268787,"corporation":false,"usgs":false,"family":"Gestrich","given":"Julia","affiliations":[{"id":50446,"text":"UAF-GI","active":true,"usgs":false}],"preferred":false,"id":915202,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fee, David 0000-0002-0936-9977","orcid":"https://orcid.org/0000-0002-0936-9977","contributorId":267231,"corporation":false,"usgs":false,"family":"Fee","given":"David","affiliations":[{"id":13097,"text":"Geophysical Institute, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":915203,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Matoza, Robin","contributorId":268788,"corporation":false,"usgs":false,"family":"Matoza","given":"Robin","affiliations":[{"id":7168,"text":"UCSB","active":true,"usgs":false}],"preferred":false,"id":915204,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lyons, John J. 0000-0001-5409-1698 jlyons@usgs.gov","orcid":"https://orcid.org/0000-0001-5409-1698","contributorId":5394,"corporation":false,"usgs":true,"family":"Lyons","given":"John","email":"jlyons@usgs.gov","middleInitial":"J.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":915205,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dietterich, Hannah R. 0000-0001-7898-4343","orcid":"https://orcid.org/0000-0001-7898-4343","contributorId":212771,"corporation":false,"usgs":true,"family":"Dietterich","given":"Hannah R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":915206,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cigala, Valerie","contributorId":344976,"corporation":false,"usgs":false,"family":"Cigala","given":"Valerie","affiliations":[{"id":62362,"text":"LMU","active":true,"usgs":false}],"preferred":false,"id":915207,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kueppers, Ulrich","contributorId":178534,"corporation":false,"usgs":false,"family":"Kueppers","given":"Ulrich","affiliations":[],"preferred":false,"id":915208,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":915209,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Parcheta, Carolyn 0000-0001-6556-4630 cparcheta@usgs.gov","orcid":"https://orcid.org/0000-0001-6556-4630","contributorId":215617,"corporation":false,"usgs":true,"family":"Parcheta","given":"Carolyn","email":"cparcheta@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":915210,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70235909,"text":"70235909 - 2022 - Trace elements in olivine fingerprint the source of 2018 magmas and shed light on explosive-effusive eruption cycles at Kīlauea Volcano","interactions":[],"lastModifiedDate":"2022-08-25T15:06:33.994252","indexId":"70235909","displayToPublicDate":"2022-08-24T10:03:58","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Trace elements in olivine fingerprint the source of 2018 magmas and shed light on explosive-effusive eruption cycles at Kīlauea Volcano","docAbstract":"<p><span>Understanding&nbsp;</span>magma<span>&nbsp;genesis and the evolution of intensive parameters (temperature, pressure, composition, degree of melting) in the&nbsp;mantle source&nbsp;of highly active volcanic systems is crucial for interpreting magma supply changes over time and recognizing cyclic behavior to anticipate future volcanic behavior. Major and trace elements in olivine are commonly used to study variations in mantle&nbsp;lithologies&nbsp;and melting conditions (e.g., temperature, pressure, oxygen fugacity) affecting the mantle over time. Here, we track the&nbsp;temporal evolution&nbsp;of primary melts through the most recent cycle of explosive and effusive eruptions at Kīlauea (Hawai‘i), which spans the last ∼500 years. We report major and trace elements in olivine from the last explosive period (∼1500 – early 1820’s Keanakāko‘i Tephra) and the most recent decade of the current effusive period (2018&nbsp;LERZ, 2015–2018 Pu‘u‘ō‘ō, 2008–2018 lava lake and 2020 eruption in Halema‘uma‘u).&nbsp;Scandium&nbsp;concentrations in olivine allow characterizing changes in mantle source between 1500 and 2018, and suggest that the recent (2015–2018) magma feeding the Pu‘u‘ō‘ō cone did not significantly interact with the magma that erupted in the LERZ in 2018. The evolution of olivine and melt compositions over the past 500 years is not easily reconcilable with variations in mantle potential temperature, pressure of mantle melt pooling and storage, or oxygen fugacity. Instead, Sc, Mn, and Co concentrations and Ni/Mg ratio in high&nbsp;forsterite&nbsp;(Fo &gt;87) olivine advocate for an increase in the proportion of&nbsp;clinopyroxene&nbsp;in the mantle source associated with a slightly higher degree of partial melting from 1500 to 2018. Changes in primitive melt compositions and degrees of mantle melting may well modulate magma supply to the crust and formation-replenishment of steady or ephemeral summit reservoirs, and thereby control transitions between explosive and effusive periods at Kīlauea. Analyzing trace elements in olivine at Kīlauea and elsewhere could therefore provide important clues on subtle changes occurring at the mantle level that might herald changes in volcanic behavior.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2022.117769","usgsCitation":"Mourey, A., Shea, T., Lynn, K.J., Lerner, A., Lambart, S., Costa, F., Oalmann, J., Lee, R.L., and Gansecki, C., 2022, Trace elements in olivine fingerprint the source of 2018 magmas and shed light on explosive-effusive eruption cycles at Kīlauea Volcano: Earth and Planetary Science Letters, v. 595, 117769, 13 p., https://doi.org/10.1016/j.epsl.2022.117769.","productDescription":"117769, 13 p.","ipdsId":"IP-133433","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":446674,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://insu.hal.science/insu-03776398","text":"Publisher Index Page"},{"id":405578,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.5224609375,\n              19.199647272639126\n            ],\n            [\n              -154.80148315429688,\n              19.199647272639126\n            ],\n            [\n              -154.80148315429688,\n              19.484718252643216\n            ],\n            [\n              -155.5224609375,\n              19.484718252643216\n            ],\n            [\n              -155.5224609375,\n              19.199647272639126\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"595","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Mourey, Adrien","contributorId":264238,"corporation":false,"usgs":false,"family":"Mourey","given":"Adrien","affiliations":[{"id":39163,"text":"University of Hawaii - Manoa","active":true,"usgs":false}],"preferred":false,"id":849658,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shea, Thomas","contributorId":236886,"corporation":false,"usgs":false,"family":"Shea","given":"Thomas","affiliations":[{"id":47560,"text":"University of Hawaii Manoa","active":true,"usgs":false}],"preferred":false,"id":849659,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lynn, Kendra J. 0000-0001-7886-4376","orcid":"https://orcid.org/0000-0001-7886-4376","contributorId":290327,"corporation":false,"usgs":true,"family":"Lynn","given":"Kendra","email":"","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":849660,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lerner, Allan","contributorId":205264,"corporation":false,"usgs":false,"family":"Lerner","given":"Allan","affiliations":[{"id":6604,"text":"University of Oregon","active":true,"usgs":false}],"preferred":false,"id":849661,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lambart, Sarah","contributorId":295555,"corporation":false,"usgs":false,"family":"Lambart","given":"Sarah","email":"","affiliations":[{"id":13252,"text":"University of Utah","active":true,"usgs":false}],"preferred":false,"id":849662,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Costa, Fidel","contributorId":184169,"corporation":false,"usgs":false,"family":"Costa","given":"Fidel","email":"","affiliations":[],"preferred":false,"id":849663,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Oalmann, Jeffrey","contributorId":295556,"corporation":false,"usgs":false,"family":"Oalmann","given":"Jeffrey","email":"","affiliations":[{"id":16631,"text":"Nanyang Technological University","active":true,"usgs":false}],"preferred":false,"id":849664,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Lee, R. Lopaka 0000-0002-6352-0340","orcid":"https://orcid.org/0000-0002-6352-0340","contributorId":223777,"corporation":false,"usgs":true,"family":"Lee","given":"R.","email":"","middleInitial":"Lopaka","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":849665,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Gansecki, Cheryl 0000-0001-5581-9097","orcid":"https://orcid.org/0000-0001-5581-9097","contributorId":215620,"corporation":false,"usgs":false,"family":"Gansecki","given":"Cheryl","email":"","affiliations":[{"id":36402,"text":"University of Hawaii","active":true,"usgs":false}],"preferred":false,"id":849666,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70260134,"text":"70260134 - 2022 - Infrasound observations and constraints on the 2018 eruption of Kīlauea Volcano, Hawaii","interactions":[],"lastModifiedDate":"2024-10-29T15:04:32.136121","indexId":"70260134","displayToPublicDate":"2022-07-19T09:59:59","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Infrasound observations and constraints on the 2018 eruption of Kīlauea Volcano, Hawaii","docAbstract":"<p><span>The 2018 eruption of Kīlauea Volcano was a dynamic event involving explosions, collapses, and fountaining at multiple vents spread over tens of kilometers. The permanent infrasound network operated by the USGS Hawaiian Volcano Observatory (HVO) was well prepared to observe the collapse of the summit, and additional deployments permitted infrasound observations during fissuring in the lower East Rift Zone (LERZ). We provide a summary of infrasound observations, including lava lake spattering, collapses, explosions, rockfall, and lava fountaining, using seismicity and tilt at times to help constrain our interpretations. At the summit of Kīlauea Volcano, we document the process of partial caldera collapse and examine a set of “proto-collapse” events that precede the widely observed events but share many of the same qualities as the larger collapses. For the initial twelve collapse events, we compare the timing of collapse onset to other observations and illustrate the repeatable characteristics of the recorded waveforms and infrasound characteristics associated with each episode of caldera collapse. In the LERZ, we match the acoustic signals with visual observations, including fissure migration, explosions near fissures, and littoral explosions. Lastly, we document and discuss the performance of infrasound alarms during the 2018 Kīlauea eruption. In general, alarming became successful in detecting collapse events at the summit of the volcano after tuning and became a key discriminant in the initial determination of collapse events, especially when visual observations were not available.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00445-022-01583-3","usgsCitation":"Thelen, W., Waite, G.P., Lyons, J.J., and David Fee, 2022, Infrasound observations and constraints on the 2018 eruption of Kīlauea Volcano, Hawaii: Bulletin of Volcanology, v. 84, 76, 24 p., https://doi.org/10.1007/s00445-022-01583-3.","productDescription":"76, 24 p.","ipdsId":"IP-131617","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":463344,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.53549432982868,\n              19.57384518533665\n            ],\n            [\n              -155.53549432982868,\n              19.32020786420226\n            ],\n            [\n              -154.80441193441976,\n              19.32020786420226\n            ],\n            [\n              -154.80441193441976,\n              19.57384518533665\n            ],\n            [\n              -155.53549432982868,\n              19.57384518533665\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"84","noUsgsAuthors":false,"publicationDate":"2022-07-19","publicationStatus":"PW","contributors":{"authors":[{"text":"Thelen, Weston 0000-0003-2534-5577","orcid":"https://orcid.org/0000-0003-2534-5577","contributorId":215530,"corporation":false,"usgs":true,"family":"Thelen","given":"Weston","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":917132,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waite, Gregory P.","contributorId":146613,"corporation":false,"usgs":false,"family":"Waite","given":"Gregory","email":"","middleInitial":"P.","affiliations":[{"id":16203,"text":"Michigan Technological university","active":true,"usgs":false}],"preferred":false,"id":917133,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lyons, John J. 0000-0001-5409-1698 jlyons@usgs.gov","orcid":"https://orcid.org/0000-0001-5409-1698","contributorId":5394,"corporation":false,"usgs":true,"family":"Lyons","given":"John","email":"jlyons@usgs.gov","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"preferred":true,"id":917134,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"David Fee","contributorId":345625,"corporation":false,"usgs":false,"family":"David Fee","affiliations":[{"id":7211,"text":"University of Alaska, Fairbanks","active":true,"usgs":false}],"preferred":false,"id":917135,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70230066,"text":"70230066 - 2022 - Synthetic aperture radar volcanic flow maps (SAR VFMs): A simple method for rapid identification and mapping of volcanic mass flows","interactions":[],"lastModifiedDate":"2022-03-28T13:33:05.673737","indexId":"70230066","displayToPublicDate":"2022-02-28T08:30:16","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Synthetic aperture radar volcanic flow maps (SAR VFMs): A simple method for rapid identification and mapping of volcanic mass flows","docAbstract":"<p><span>Volcanic mass flows, including lava, pyroclastic density currents, and lahars, account for the bulk of fatalities and infrastructure damage caused by volcanic eruptions. Mapping these flows soon after their emplacement is vital to understanding their impact and to forecasting the likely behavior of potential future flows. Synthetic aperture radar (SAR) can provide useful information about surface properties and changes regardless of environmental conditions or time of day, but no individual SAR product can unambiguously detect and map surface mass flows in all conditions. Combining SAR products, however, can capitalize on the strengths and compensate for the weaknesses of individual data types. SAR volcanic flow maps (SAR VFMs) merge cross-polarized amplitude imagery from two different dates with interferometric coherence spanning those dates. The combination of amplitude change with coherence provides a means of detecting volcanic mass flows regardless of surface conditions, and data collected by satellite provide the spatial coverage needed to detect changes over broad areas. Application to eruptions of Kīlauea (Hawaiʻi), Nyiragongo (Democratic Republic of Congo), Sinabung (Indonesia), and Fuego (Guatemala) demonstrate the value of SAR VFMs for monitoring hazardous volcanic activity, and the importance of acquiring cross-polarized satellite SAR imagery for volcano applications. The ever-growing number of public and private satellite SAR missions will provide for improved temporal resolution in SAR VFMs in the future, and the technique may be suitable for automated analysis that is capable of timely identification of changes due to volcanic activity, even in areas that are otherwise unmonitored.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00445-022-01539-7","usgsCitation":"Poland, M., 2022, Synthetic aperture radar volcanic flow maps (SAR VFMs): A simple method for rapid identification and mapping of volcanic mass flows: Bulletin of Volcanology, v. 84, no. 3, 32, 11 p., https://doi.org/10.1007/s00445-022-01539-7.","productDescription":"32, 11 p.","ipdsId":"IP-132741","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":397696,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.511474609375,\n              19.21780295966795\n            ],\n            [\n              -154.92095947265622,\n              19.21780295966795\n            ],\n            [\n              -154.92095947265622,\n              19.6\n            ],\n            [\n              -155.511474609375,\n              19.6\n            ],\n            [\n              -155.511474609375,\n              19.21780295966795\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"84","issue":"3","noUsgsAuthors":false,"publicationDate":"2022-02-28","publicationStatus":"PW","contributors":{"authors":[{"text":"Poland, Michael 0000-0001-5240-6123","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":49920,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":838941,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70230063,"text":"70230063 - 2022 - Rainfall an unlikely trigger of Kilauea’s 2018 rift eruption","interactions":[],"lastModifiedDate":"2022-03-28T13:47:26.611874","indexId":"70230063","displayToPublicDate":"2022-02-02T08:34:06","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Rainfall an unlikely trigger of Kīlauea’s 2018 rift eruption","title":"Rainfall an unlikely trigger of Kilauea’s 2018 rift eruption","docAbstract":"<p><span>If volcanic eruptions could be forecast from the occurrence of some external process, it might be possible to better mitigate risk and protect lives and livelihoods. Farquharson and Amelung</span><sup><a id=\"ref-link-section-d13005269e462\" title=\"Farquharson, J. I. &amp; Amelung, F. Extreme rainfall triggered the 2018 rift eruption at Kīlauea Volcano. Nature 580, 491–495 (2020).\" href=\"https://www.nature.com/articles/s41586-021-04163-1#ref-CR1\" data-track=\"click\" data-track-action=\"reference anchor\" data-track-label=\"link\" data-test=\"citation-ref\" aria-label=\"Reference 1\" data-mce-href=\"https://www.nature.com/articles/s41586-021-04163-1#ref-CR1\">1</a></sup><span>&nbsp;suggested that the 2018 lower East Rift Zone (ERZ) eruption of Kīlauea Volcano—the most destructive eruption in Hawai‘i in at least 200 years</span><sup><a id=\"ref-link-section-d13005269e466\" title=\"Neal, C. A. et al. The 2018 rift eruption and summit collapse of Kīlauea Volcano. Science 363, 367–374 (2019).\" href=\"https://www.nature.com/articles/s41586-021-04163-1#ref-CR2\" data-track=\"click\" data-track-action=\"reference anchor\" data-track-label=\"link\" data-test=\"citation-ref\" aria-label=\"Reference 2\" data-mce-href=\"https://www.nature.com/articles/s41586-021-04163-1#ref-CR2\">2</a></sup><span>—was triggered by extreme precipitation, which caused&nbsp;increased pore pressure that resulted in mechanical weakening of the volcano. Here we argue that Kīlauea’s 2018 eruption was instead caused by significant pre-eruptive pressurization, that pre-eruptive rainfall was not extreme, and that there is no significant correlation between rain and eruptions at Kīlauea. Understanding the causal mechanisms of volcanic eruptions is vital for hazard assessment and mitigation, and misattribution may compromise monitoring, preparedness, communication and response efforts.</span></p>","language":"English","publisher":"Springer","doi":"10.1038/s41586-021-04163-1","usgsCitation":"Poland, M., Hurwitz, S., Kauahikaua, J.P., Montgomery-Brown, E.K., Anderson, K.R., Johanson, I.A., Patrick, M.R., and Neal, C.A., 2022, Rainfall an unlikely trigger of Kilauea’s 2018 rift eruption: Nature, v. 602, no. 7895, p. E7-E10, https://doi.org/10.1038/s41586-021-04163-1.","productDescription":"4 p.","startPage":"E7","endPage":"E10","ipdsId":"IP-119030","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":397697,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.511474609375,\n              19.21780295966795\n            ],\n            [\n              -154.8,\n              19.21780295966795\n            ],\n            [\n              -154.8,\n              19.6\n            ],\n            [\n              -155.511474609375,\n              19.6\n            ],\n            [\n              -155.511474609375,\n              19.21780295966795\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"602","issue":"7895","noUsgsAuthors":false,"publicationDate":"2022-02-02","publicationStatus":"PW","contributors":{"authors":[{"text":"Poland, Michael 0000-0001-5240-6123","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":49920,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":838933,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hurwitz, Shaul 0000-0001-5142-6886 shaulh@usgs.gov","orcid":"https://orcid.org/0000-0001-5142-6886","contributorId":2169,"corporation":false,"usgs":true,"family":"Hurwitz","given":"Shaul","email":"shaulh@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838934,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kauahikaua, James P. 0000-0003-3777-503X jimk@usgs.gov","orcid":"https://orcid.org/0000-0003-3777-503X","contributorId":2146,"corporation":false,"usgs":true,"family":"Kauahikaua","given":"James","email":"jimk@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838935,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Montgomery-Brown, Emily K. 0000-0001-6787-2055","orcid":"https://orcid.org/0000-0001-6787-2055","contributorId":214074,"corporation":false,"usgs":true,"family":"Montgomery-Brown","given":"Emily","email":"","middleInitial":"K.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838936,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Anderson, Kyle R. 0000-0001-8041-3996 kranderson@usgs.gov","orcid":"https://orcid.org/0000-0001-8041-3996","contributorId":3522,"corporation":false,"usgs":true,"family":"Anderson","given":"Kyle","email":"kranderson@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838937,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Johanson, Ingrid A. 0000-0002-6049-2225","orcid":"https://orcid.org/0000-0002-6049-2225","contributorId":215613,"corporation":false,"usgs":true,"family":"Johanson","given":"Ingrid","email":"","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838939,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838938,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Neal, Christina A. 0000-0002-7697-7825 tneal@usgs.gov","orcid":"https://orcid.org/0000-0002-7697-7825","contributorId":131135,"corporation":false,"usgs":true,"family":"Neal","given":"Christina","email":"tneal@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838940,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70227782,"text":"70227782 - 2022 - Explosive activity on Kilauea’s Lower East Rift Zone fueled by a volatile-rich, dacitic melt","interactions":[],"lastModifiedDate":"2022-02-15T16:34:24.897853","indexId":"70227782","displayToPublicDate":"2022-01-31T10:10:00","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":9358,"text":"Geochemistry, Geophysics, Geosystems (G-Cubed)","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Explosive activity on Kīlauea’s Lower East Rift Zone fueled by a volatile-rich, dacitic melt","title":"Explosive activity on Kilauea’s Lower East Rift Zone fueled by a volatile-rich, dacitic melt","docAbstract":"<p>Magmas with matrix glass compositions ranging from basalt to dacite erupted from a series of 24 fissures in the first two weeks of the 2018 Lower East Rift Zone (LERZ) eruption of Kīlauea Volcano. Eruption styles ranged from low spattering and fountaining to strombolian activity. Major element trajectories in matrix glasses and melt inclusions hosted by olivine, pyroxene and plagioclase are consistent with variable amounts of fractional crystallization, with incompatible elements (e.g., Cl, F, H<sub>2</sub>O) becoming enriched by 4-5 times as melt MgO contents evolve from 6 to 0.5 wt%. The high viscosity and high H<sub>2</sub>O contents (∼2 wt%) of the dacitic melts erupting at Fissure 17 account for the explosive Strombolian behavior exhibited by this fissure, in contrast to the low fountaining and spattering observed at fissures erupting basaltic to basaltic-andesite melts. Saturation pressures calculated from melt inclusions CO<sub>2</sub>-H<sub>2</sub>O contents indicate that the magma reservoir(s) supplying these fissures was located at ∼2-3 km depth, which is in agreement with the depth of a dacitic magma body intercepted during drilling in 2005 (∼2.5 km) and a seismically-imaged low Vp/Vs anomaly (∼2 km depth). Nb/Y ratios in erupted products are similar to lavas erupted between 1955-1960, indicating that melts were stored and underwent variable amounts of crystallization in the LERZ for &gt;60 years before being remobilized by a dike intrusion in 2018. We demonstrate that extensive fractional crystallization generates viscous and volatile-rich magma with potential for hazardous explosive eruptions, which may be lurking undetected at many ocean island volcanoes.</p>","language":"English","publisher":"Wiley","doi":"10.1029/2021GC010046","usgsCitation":"Wieser, P.E., Edmonds, M., Gansecki, C., Maclennan, J., Jenner, F.E., Kunz, B., Antoshechkina, P., Trusdell, F., Lee, R.L., and Edinburgh Ion Microprobe Facility, 2022, Explosive activity on Kilauea’s Lower East Rift Zone fueled by a volatile-rich, dacitic melt: Geochemistry, Geophysics, Geosystems (G-Cubed), v. 23, no. 2, e2021GC010046, 24 p., https://doi.org/10.1029/2021GC010046.","productDescription":"e2021GC010046, 24 p.","ipdsId":"IP-132884","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":448986,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2021gc010046","text":"Publisher Index Page"},{"id":395148,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kīlauea Volcano, Lower East Rift Zone","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.34805297851562,\n              19.243736176569485\n            ],\n            [\n              -154.6820068359375,\n              19.243736176569485\n            ],\n            [\n              -154.6820068359375,\n              19.71241464369998\n            ],\n            [\n              -155.34805297851562,\n              19.71241464369998\n            ],\n            [\n              -155.34805297851562,\n              19.243736176569485\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"23","issue":"2","noUsgsAuthors":false,"publicationDate":"2022-02-11","publicationStatus":"PW","contributors":{"authors":[{"text":"Wieser, Penny E. 0000-0002-1070-8323","orcid":"https://orcid.org/0000-0002-1070-8323","contributorId":272601,"corporation":false,"usgs":false,"family":"Wieser","given":"Penny","email":"","middleInitial":"E.","affiliations":[{"id":27136,"text":"University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":832219,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Edmonds, Marie 0000-0003-1243-137X","orcid":"https://orcid.org/0000-0003-1243-137X","contributorId":272602,"corporation":false,"usgs":false,"family":"Edmonds","given":"Marie","email":"","affiliations":[{"id":27136,"text":"University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":832220,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gansecki, Cheryl 0000-0001-5581-9097","orcid":"https://orcid.org/0000-0001-5581-9097","contributorId":215620,"corporation":false,"usgs":false,"family":"Gansecki","given":"Cheryl","email":"","affiliations":[{"id":36402,"text":"University of Hawaii","active":true,"usgs":false}],"preferred":false,"id":832221,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Maclennan, John","contributorId":272838,"corporation":false,"usgs":false,"family":"Maclennan","given":"John","email":"","affiliations":[{"id":27136,"text":"University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":832313,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jenner, Frances E. 0000-0003-2189-6478","orcid":"https://orcid.org/0000-0003-2189-6478","contributorId":272603,"corporation":false,"usgs":false,"family":"Jenner","given":"Frances","email":"","middleInitial":"E.","affiliations":[{"id":47593,"text":"The Open University","active":true,"usgs":false}],"preferred":false,"id":832222,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kunz, Barbara 0000-0002-9492-1497","orcid":"https://orcid.org/0000-0002-9492-1497","contributorId":272604,"corporation":false,"usgs":false,"family":"Kunz","given":"Barbara","email":"","affiliations":[{"id":47593,"text":"The Open University","active":true,"usgs":false}],"preferred":false,"id":832223,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Antoshechkina, Paula 0000-0002-3358-5186","orcid":"https://orcid.org/0000-0002-3358-5186","contributorId":272605,"corporation":false,"usgs":false,"family":"Antoshechkina","given":"Paula","email":"","affiliations":[{"id":7218,"text":"California Institute of Technology","active":true,"usgs":false}],"preferred":false,"id":832224,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Trusdell, Frank A. 0000-0002-0681-0528 trusdell@usgs.gov","orcid":"https://orcid.org/0000-0002-0681-0528","contributorId":754,"corporation":false,"usgs":true,"family":"Trusdell","given":"Frank A.","email":"trusdell@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":832218,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Lee, R. Lopaka 0000-0002-6352-0340","orcid":"https://orcid.org/0000-0002-6352-0340","contributorId":223777,"corporation":false,"usgs":true,"family":"Lee","given":"R.","email":"","middleInitial":"Lopaka","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":832225,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Edinburgh Ion Microprobe Facility","contributorId":272840,"corporation":true,"usgs":false,"organization":"Edinburgh Ion Microprobe Facility","id":832314,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70265770,"text":"70265770 - 2022 - New insights on faulting and intrusion processes during the June 2007, East Rift Zone eruption of Kilauea volcano, Hawai'i","interactions":[],"lastModifiedDate":"2025-04-16T13:17:34.472644","indexId":"70265770","displayToPublicDate":"2021-11-12T00:00:00","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"New insights on faulting and intrusion processes during the June 2007, East Rift Zone eruption of Kilauea volcano, Hawai'i","docAbstract":"<p><span>The East Rift Zone (ERZ) of Kīlauea Volcano, Hawai'i, represents one of the most volcanically active regions in the world. The 2007 Father's Day (FD) dike intrusion, eruption, and accompanying slow-slip event (SSE) has been previously modeled using geodetic data to constrain the geometry of the intrusion and the timing and magnitude of the SSE. Here, we perform inversions of three interferometric synthetic aperture radar (InSAR) datasets and a new intensity offset tracking dataset to assess the effect of integrating intensity cross-correlation offsets into inversion problems and explore additional potential models for the intrusion geometry of the FD event based on this additional data. The overall lowest misfit single Okada model for all datasets opens 2.3&nbsp;m, strikes 73 degrees while dipping sub-vertically at 83 degrees, and extends approximately 2.9&nbsp;km to the ENE and 2.4&nbsp;km downdip. The differences are minor between complex en-echelon distributed Okada and decollement model of (Montgomery-Brown et al., 2010) or 3D-MBEM breaching models including multiple surface breaches and free-slipping decollement movement. Finally, we examine the static Coulomb stress changes for the proposed decollement fault created by our preferred model and a representative model of deep rift opening and find that deep rift zones dilation, not shallow ERZ intrusions, are likely modulating slip on the decollement.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2021.107425","usgsCitation":"Leeburn, J., Wauthier, C., Montgomery-Brown, E.K., and Gonzalez-Santana, J., 2022, New insights on faulting and intrusion processes during the June 2007, East Rift Zone eruption of Kilauea volcano, Hawai'i: Journal of Volcanology and Geothermal Research, v. 421, 107425, 14 p., https://doi.org/10.1016/j.jvolgeores.2021.107425.","productDescription":"107425, 14 p.","ipdsId":"IP-125424","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":488262,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.jvolgeores.2021.107425","text":"Publisher Index Page"},{"id":484584,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -155.2908512348302,\n              19.41341967491155\n            ],\n            [\n              -155.2908512348302,\n              19.401793724963014\n            ],\n            [\n              -155.27525765813795,\n              19.401793724963014\n            ],\n            [\n              -155.27525765813795,\n              19.41341967491155\n            ],\n            [\n              -155.2908512348302,\n              19.41341967491155\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"421","noUsgsAuthors":false,"publicationDate":"2021-11-12","publicationStatus":"PW","contributors":{"authors":[{"text":"Leeburn, J.","contributorId":353406,"corporation":false,"usgs":false,"family":"Leeburn","given":"J.","affiliations":[{"id":6975,"text":"Penn State","active":true,"usgs":false}],"preferred":false,"id":933489,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wauthier, C.","contributorId":353409,"corporation":false,"usgs":false,"family":"Wauthier","given":"C.","affiliations":[{"id":6975,"text":"Penn State","active":true,"usgs":false}],"preferred":false,"id":933490,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Montgomery-Brown, Emily K. 0000-0001-6787-2055","orcid":"https://orcid.org/0000-0001-6787-2055","contributorId":214074,"corporation":false,"usgs":true,"family":"Montgomery-Brown","given":"Emily","email":"","middleInitial":"K.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":933491,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gonzalez-Santana, J.","contributorId":353412,"corporation":false,"usgs":false,"family":"Gonzalez-Santana","given":"J.","affiliations":[{"id":6975,"text":"Penn State","active":true,"usgs":false}],"preferred":false,"id":933492,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70225520,"text":"70225520 - 2022 - Density structure of the island of Hawai’i and the implications for gravity-driven motion of the south flank of Kilauea volcano","interactions":[],"lastModifiedDate":"2021-12-10T17:03:53.974623","indexId":"70225520","displayToPublicDate":"2021-10-20T09:43:53","publicationYear":"2022","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Density structure of the island of Hawai’i and the implications for gravity-driven motion of the south flank of Kīlauea volcano","title":"Density structure of the island of Hawai’i and the implications for gravity-driven motion of the south flank of Kilauea volcano","docAbstract":"The discovery that large landslides dissected the Hawaiian islands, scattering debris over thousands of square kilometers of seafloor, changed our ideas of island growth and evolution. The evidence is consistent with catastrophic flank collapse during volcano growth, and draws our focus to the currently active island of Hawai’i, the volcanoes Mauna Loa and Kīlauea, and particularly to the actively-mobile south flank of Kīlauea volcano. Both the weight distribution and pressure within an extensive magma system are perceived to affect stability, but the role of gravitational body forces and island density distribution has not been quantitatively assessed. We use seismic velocities derived from tomography to model the density distribution of the island of Hawai’i and find that olivine-rich melts and rocks in Hawaiian volcanoes result in a close association of seismic velocity and density. The resultant density model reproduces more than 95% of the observed gravity disturbance signal wherever tomographic control exists and provides a basis for evaluating the body forces from gravity. We also find that if the decollement is weak, then gravitational body forces can produce slip that explains most seismo-tectonic and volcano-tectonic structural features of Kīlauea volcano. Where the decollement is in a state of incipient slip from this weight distribution, fluctuations in magma pressure can trigger accelerated slip on the decollement. Yet this is only true of the south flank of Kīlauea volcano. Though weight and magma distributions produce significant forces driving the west flank of Mauna Loa seaward, this flank is stable. Stability over the last decade indicates a strong foundation beneath the west flank of Mauna Loa, perhaps as a result of large debris avalanches that occurred there that scraped clay-rich sediments off of the decollement.","language":"English","publisher":"Oxford University Press","doi":"10.1093/gji/ggab398","usgsCitation":"Denlinger, R.P., and Flinders, A.F., 2022, Density structure of the island of Hawai’i and the implications for gravity-driven motion of the south flank of Kilauea volcano: Geophysical Journal International, v. 228, no. 3, p. 1793-1807, https://doi.org/10.1093/gji/ggab398.","productDescription":"15 p.","startPage":"1793","endPage":"1807","ipdsId":"IP-126754","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":449612,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/gji/ggab398","text":"Publisher Index Page"},{"id":390674,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Mount Kīlauea, Mount Mauna Loa","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.6597900390625,\n              18.87510275035649\n            ],\n            [\n              -155.50048828125,\n              19.108838815166006\n            ],\n            [\n              -155.26153564453125,\n              19.251515342943254\n            ],\n            [\n              -155.15441894531247,\n              19.233363381183896\n            ],\n            [\n              -154.940185546875,\n              19.32669491605546\n            ],\n            [\n              -154.77813720703125,\n              19.497664168139053\n            ],\n            [\n              -154.80010986328125,\n              19.54426088484117\n            ],\n            [\n              -154.96490478515625,\n              19.645174265699062\n            ],\n            [\n              -154.97589111328125,\n              19.74343913716519\n            ],\n            [\n              -155.07476806640625,\n              19.748609300218842\n            ],\n            [\n              -155.08026123046875,\n              19.815806165386956\n            ],\n            [\n              -155.0665283203125,\n              19.87522588708924\n            ],\n            [\n              -155.26702880859375,\n              20.037870053952016\n            ],\n            [\n              -155.48126220703125,\n              20.125576455270572\n            ],\n            [\n              -155.56365966796875,\n              20.146206116089946\n            ],\n            [\n              -155.59112548828122,\n              20.135891626114574\n            ],\n            [\n              -155.753173828125,\n              20.259620485824865\n            ],\n            [\n              -155.89599609375,\n              20.287961155077717\n            ],\n            [\n              -155.91796874999997,\n              20.246736652244206\n            ],\n            [\n              -155.92620849609375,\n              20.16425483433661\n            ],\n            [\n              -155.84106445312497,\n              20.014645445341365\n            ],\n            [\n              -155.91522216796875,\n              19.94236918954201\n            ],\n            [\n              -155.94268798828125,\n              19.87005983797396\n            ],\n            [\n              -155.99761962890625,\n              19.85714397875396\n            ],\n            [\n              -156.0882568359375,\n              19.748609300218842\n            ],\n            [\n              -155.906982421875,\n              19.295590314804254\n            ],\n            [\n              -155.93719482421875,\n              19.134789188332523\n            ],\n            [\n              -155.92620849609375,\n              19.05173366503917\n            ],\n            [\n              -155.6597900390625,\n              18.87510275035649\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"228","issue":"3","noUsgsAuthors":false,"publicationDate":"2021-10-04","publicationStatus":"PW","contributors":{"authors":[{"text":"Denlinger, Roger P. 0000-0003-0930-0635 roger@usgs.gov","orcid":"https://orcid.org/0000-0003-0930-0635","contributorId":2679,"corporation":false,"usgs":true,"family":"Denlinger","given":"Roger","email":"roger@usgs.gov","middleInitial":"P.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":825398,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flinders, Ashton F. 0000-0003-2483-4635 aflinders@usgs.gov","orcid":"https://orcid.org/0000-0003-2483-4635","contributorId":196960,"corporation":false,"usgs":true,"family":"Flinders","given":"Ashton","email":"aflinders@usgs.gov","middleInitial":"F.","affiliations":[{"id":153,"text":"California Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":825399,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70222392,"text":"70222392 - 2021 - Repeating caldera collapse events constrain fault friction at the kilometer scale","interactions":[],"lastModifiedDate":"2021-07-27T12:23:44.970307","indexId":"70222392","displayToPublicDate":"2021-07-27T07:21:47","publicationYear":"2021","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3164,"text":"Proceedings of the National Academy of Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Repeating caldera collapse events constrain fault friction at the kilometer scale","docAbstract":"<p><span>Fault friction is central to understanding earthquakes, yet laboratory rock mechanics experiments are restricted to, at most, meter scale. Questions thus remain as to the applicability of measured frictional properties to faulting in situ. In particular, the slip-weakening distance&nbsp;</span><span id=\"inline-formula-1\" class=\"inline-formula\"><span class=\"mathjax mml-math\"><span id=\"MathJax-Element-1-Frame\" class=\"MathJax\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msub><mrow><mi>d</mi></mrow><mrow><mi>c</mi></mrow></msub></math>\"><span id=\"MathJax-Span-1\" class=\"math\"><span><span id=\"MathJax-Span-2\" class=\"mrow\"><span id=\"MathJax-Span-3\" class=\"msub\"><span id=\"MathJax-Span-4\" class=\"mrow\"><span id=\"MathJax-Span-5\" class=\"mi\">d</span></span><span id=\"MathJax-Span-6\" class=\"mrow\"><span id=\"MathJax-Span-7\" class=\"mi\">c</span></span></span></span></span></span><span class=\"MJX_Assistive_MathML\">dc</span></span></span></span><span>&nbsp;strongly influences precursory slip during earthquake nucleation, but scales with fault roughness and is challenging to extrapolate to nature. The 2018 eruption of K̄ılauea volcano, Hawaii, caused 62 repeatable collapse events in which the summit caldera dropped several meters, accompanied by&nbsp;</span><span id=\"inline-formula-2\" class=\"inline-formula\"><span class=\"mathjax mml-math\"><span id=\"MathJax-Element-2-Frame\" class=\"MathJax\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msub><mrow><mi>M</mi></mrow><mrow><mi>W</mi></mrow></msub></math>\"><span id=\"MathJax-Span-8\" class=\"math\"><span><span id=\"MathJax-Span-9\" class=\"mrow\"><span id=\"MathJax-Span-10\" class=\"msub\"><span id=\"MathJax-Span-11\" class=\"mrow\"><span id=\"MathJax-Span-12\" class=\"mi\">M</span></span><span id=\"MathJax-Span-13\" class=\"mrow\"><span id=\"MathJax-Span-14\" class=\"mi\">W</span></span></span></span></span></span><span class=\"MJX_Assistive_MathML\">MW</span></span></span></span><span>&nbsp;4.7 to 5.4 very long period (VLP) earthquakes. Collapses were exceptionally well recorded by global positioning system (GPS) and tilt instruments and represent unique natural kilometer-scale friction experiments. We model a piston collapsing into a magma reservoir. Pressure at the piston base and shear stress on its margin, governed by rate and state friction, balance its weight. Downward motion of the piston compresses the underlying magma, driving flow to the eruption. Monte Carlo estimation of unknowns validates laboratory friction parameters at the kilometer scale, including the magnitude of steady-state velocity weakening. The absence of accelerating precollapse deformation constrains&nbsp;</span><span id=\"inline-formula-3\" class=\"inline-formula\"><span class=\"mathjax mml-math\"><span id=\"MathJax-Element-3-Frame\" class=\"MathJax\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msub><mrow><mi>d</mi></mrow><mrow><mi>c</mi></mrow></msub></math>\"><span id=\"MathJax-Span-15\" class=\"math\"><span><span id=\"MathJax-Span-16\" class=\"mrow\"><span id=\"MathJax-Span-17\" class=\"msub\"><span id=\"MathJax-Span-18\" class=\"mrow\"><span id=\"MathJax-Span-19\" class=\"mi\">d</span></span><span id=\"MathJax-Span-20\" class=\"mrow\"><span id=\"MathJax-Span-21\" class=\"mi\">c</span></span></span></span></span></span><span class=\"MJX_Assistive_MathML\">dc</span></span></span></span><span>&nbsp;to be&nbsp;</span><span id=\"inline-formula-4\" class=\"inline-formula\"><span class=\"mathjax mml-math\"><span id=\"MathJax-Element-4-Frame\" class=\"MathJax\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mo>&amp;#x2264;</mo><mn>10</mn></math>\"><span id=\"MathJax-Span-22\" class=\"math\"><span><span id=\"MathJax-Span-23\" class=\"mrow\"><span id=\"MathJax-Span-24\" class=\"mo\">≤</span><span id=\"MathJax-Span-25\" class=\"mn\">10</span></span></span></span><span class=\"MJX_Assistive_MathML\">≤10</span></span></span></span><span>&nbsp;mm, potentially much less. These results support the use of laboratory friction laws and parameters for modeling earthquakes. We identify initial conditions and material and magma-system parameters that lead to episodic caldera collapse, revealing that small differences in eruptive vent elevation can lead to major differences in eruption volume and duration. Most historical basaltic caldera collapses were, at least partly, episodic, implying that the conditions for stick–slip derived here are commonly met in nature.</span></p>","language":"English","publisher":"Proceedings of the National Academy of Sciences of the United States of America","doi":"10.1073/pnas.2101469118","usgsCitation":"Segall, P., and Anderson, K.R., 2021, Repeating caldera collapse events constrain fault friction at the kilometer scale: Proceedings of the National Academy of Sciences, v. 118, no. 30, e2101469118, 7 p., https://doi.org/10.1073/pnas.2101469118.","productDescription":"e2101469118, 7 p.","ipdsId":"IP-125022","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":451400,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1073/pnas.2101469118","text":"Publisher Index Page"},{"id":387462,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.35629272460938,\n              19.315031384033126\n            ],\n            [\n              -155.1605987548828,\n              19.315031384033126\n            ],\n            [\n              -155.1605987548828,\n              19.470476550146252\n            ],\n            [\n              -155.35629272460938,\n              19.470476550146252\n            ],\n            [\n              -155.35629272460938,\n              19.315031384033126\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"118","issue":"30","noUsgsAuthors":false,"publicationDate":"2021-07-23","publicationStatus":"PW","contributors":{"authors":[{"text":"Segall, Paul","contributorId":241093,"corporation":false,"usgs":false,"family":"Segall","given":"Paul","affiliations":[{"id":6986,"text":"Stanford University","active":true,"usgs":false}],"preferred":false,"id":819923,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anderson, Kyle R. 0000-0001-8041-3996 kranderson@usgs.gov","orcid":"https://orcid.org/0000-0001-8041-3996","contributorId":3522,"corporation":false,"usgs":true,"family":"Anderson","given":"Kyle","email":"kranderson@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":819924,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70230073,"text":"70230073 - 2021 - Onset and evolution of Kilauea’s 2018 flank eruption and summit collapse from continuous gravity","interactions":[],"lastModifiedDate":"2022-03-28T13:19:34.266653","indexId":"70230073","displayToPublicDate":"2021-05-25T08:14:56","publicationYear":"2021","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Onset and evolution of Kīlauea's 2018 flank eruption and summit collapse from continuous gravity","title":"Onset and evolution of Kilauea’s 2018 flank eruption and summit collapse from continuous gravity","docAbstract":"<p><span>Prior to the 2018 lower East Rift Zone (ERZ) eruption and summit collapse of Kīlauea Volcano, Hawai‘i, continuous gravimeters operated on the vent rims of ongoing eruptions at both the summit and Pu‘u ‘Ō‘ō. These instruments captured the onset of the 2018 lower ERZ eruption and the effects of lava withdrawal from both locales, providing constraints on the timing and style of activity and the physical properties of the lava lakes at both locations. At the summit, combining gravity, lava level, and a three-dimensional model of the vent indicates that the upper ∼200 m of the lava lake had a density of about 1700 kg</span><span>&nbsp;</span><span>m</span><sup>−3</sup><span>, slightly greater than estimates from 2011–2015 and possibly indicating a gradual densification over time. At Pu‘u ‘Ō‘ō, gravity and vent geometry were used to model both the density and the rate of crater collapse, which was unknown owing to a lack of visual observations. Results suggest the withdrawal of at least&nbsp;</span><span class=\"math\">11×106</span><span>&nbsp;m</span><sup>3</sup><span>&nbsp;of lava over the course of two hours, and a material density of 1800–1900 kg</span><span>&nbsp;</span><span>m</span><sup>−3</sup><span>. In addition, gravity data at Pu‘u ‘Ō‘ō captured a transient decrease and increase about an hour prior to crater collapse and that was probably related to a small, short-lived fissure eruption on the west flank of the cone and possibly to dike intrusion beneath Pu‘u ‘Ō‘ō. The fissure was the first event in the subsequent cascade that ultimately led to the extrusion of over 1 km</span><sup>3</sup><span>&nbsp;of lava from lower ERZ vents, collapse of the summit caldera floor by more than 500 m, and the destruction of over 700 homes and other structures. These results emphasize the importance of continuous gravity in operational monitoring of active volcanoes.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2021.117003","usgsCitation":"Poland, M., Carbone, D., and Patrick, M.R., 2021, Onset and evolution of Kilauea’s 2018 flank eruption and summit collapse from continuous gravity: Earth and Planetary Science Letters, v. 567, 117003, 12 p., https://doi.org/10.1016/j.epsl.2021.117003.","productDescription":"117003, 12 p.","ipdsId":"IP-123201","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":452142,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.epsl.2021.117003","text":"Publisher Index Page"},{"id":436343,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P99QB29I","text":"USGS data release","linkHelpText":"Crater geometry data for Puʻuʻōʻō, on Kīlauea Volcano&amp;amp;rsquo;s East Rift Zone, in May 2018"},{"id":436342,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9PP5LX1","text":"USGS data release","linkHelpText":"Continuous gravity data from K?lauea Volcano, Hawai?i"},{"id":397686,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.40985107421875,\n              19.158141038187704\n            ],\n            [\n              -154.78912353515625,\n              19.158141038187704\n            ],\n            [\n              -154.78912353515625,\n              19.557202031700292\n            ],\n            [\n              -155.40985107421875,\n              19.557202031700292\n            ],\n            [\n              -155.40985107421875,\n              19.158141038187704\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"567","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Poland, Michael 0000-0001-5240-6123","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":49920,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":838947,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carbone, Daniele","contributorId":124561,"corporation":false,"usgs":false,"family":"Carbone","given":"Daniele","email":"","affiliations":[{"id":5113,"text":"INGV","active":true,"usgs":false}],"preferred":false,"id":838948,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Patrick, Matthew R. 0000-0002-8042-6639 mpatrick@usgs.gov","orcid":"https://orcid.org/0000-0002-8042-6639","contributorId":2070,"corporation":false,"usgs":true,"family":"Patrick","given":"Matthew","email":"mpatrick@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":838949,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}