{"pageNumber":"3","pageRowStart":"50","pageSize":"25","recordCount":560,"records":[{"id":70199699,"text":"70199699 - 2018 - Magma supply to Kīlauea Volcano, Hawai‘i, from inception to now: Historical perspective, current state of knowledge, and future challenges","interactions":[],"lastModifiedDate":"2019-10-28T09:32:44","indexId":"70199699","displayToPublicDate":"2018-09-03T12:16:44","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5198,"text":"Geological Society of America Special Papers ","active":true,"publicationSubtype":{"id":10}},"title":"Magma supply to Kīlauea Volcano, Hawai‘i, from inception to now: Historical perspective, current state of knowledge, and future challenges","docAbstract":"<p><span>Meticulous field observations are a common underpinning of two landmark studies conducted by Don Swanson dealing with the rate at which magma is supplied to Kīlauea Volcano, Hawai‘i. The first combined effusion rate and ground deformation observations to show that the supply rate to Kīlauea was constant at ~0.11 km</span><sup>3</sup><span>/yr during three sustained eruptions from 1952 to 1971, a quiescent period at neighboring Mauna Loa volcano. This rate was also interpreted as the steady supply rate from the mantle to both volcanoes combined throughout historical time. The second breakthrough involved field evidence that activity at Kīlauea alternates between dominantly effusive and explosive styles over time scales of several centuries, and that the magma supply rate during explosive periods is only 1%-2% of the rate during effusive periods. For the historical period, several later studies concluded that the supply rate to Kīlauea has varied by as much as an order of magnitude, contrary to Swanson’s ­earlier suggestion. All such estimates are fraught with uncertainty, given the poorly known amount of magma stored within the volcano’s rift zones as a function of time—an enduring problem and active research topic. Nonetheless, Swanson’s original work remains an important touchstone that spurred many subsequent investigations and refinements. For example, there is strong evidence that Kīlauea experienced a surge in magma supply during 2003–2007 that exceeded the historical average by as much as a factor of two, and that the surge was followed by a comparable lull before the supply rate returned to “normal” by 2016. There is also evidence for supply-rate variations of similar magnitude during the latter part of the twentieth century and possibly earlier, subject to the aforementioned uncertainty in rift-zone storage. The extent to which variations in the magma supply to Kīlauea can be attributed to partitioning between Kīlauea and Mauna Loa, a long-debated topic, remains uncertain. Since Kilauea’s inception, the net magma supply to the volcano (and also to Lō‘ihi Seamount, since it began growing) has increased, while Mauna Loa’s growth rate has slowed, suggesting that the volcanoes compete for the same magma supply. However, geochemical differences between lavas erupted at Kīlauea and Mauna Loa indicate that they do not share a homogeneous mantle source or common lithospheric magma plumbing system. Both ideas might be correct; i.e., Kīlauea and Mauna Loa magmas may be sourced in differing portions of the same melt accumulation zone and ascend through different crustal pathways, but those pathways interact through stress or pressure changes that modulate the supply to each volcano. Currently, magma supply-rate estimates are facilitated by comprehensive imaging of surface deformation and topographic change coupled with measurements of gas emissions. Physics-based models are being developed within a probabilistic framework to provide rigorous estimates of model parameters, including magma supply rate, and their uncertainties. Further refinement will require intensive multiparameter observations of the entire magmatic system—from source to surface and above, and from the volcanoes’ summits to their submerged lower flanks—in order to account fully for a complex magma budget.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Field volcanology: A tribute to the distinguished career of Don Swanson","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/2018.2538(12)","usgsCitation":"Dzurisin, D., and Poland, M.P., 2018, Magma supply to Kīlauea Volcano, Hawai‘i, from inception to now: Historical perspective, current state of knowledge, and future challenges: Geological Society of America Special Papers , v. 538, p. 275-295, https://doi.org/10.1130/2018.2538(12).","productDescription":"21 p.","startPage":"275","endPage":"295","ipdsId":"IP-087117","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":460853,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/2018.2538(12)","text":"Publisher Index Page"},{"id":357767,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawai‘i","otherGeospatial":"Kīlauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.35354614257812,\n              19.330582575049508\n            ],\n            [\n              -155.15853881835938,\n              19.330582575049508\n            ],\n            [\n              -155.15853881835938,\n              19.47500813674322\n            ],\n            [\n              -155.35354614257812,\n              19.47500813674322\n            ],\n            [\n              -155.35354614257812,\n              19.330582575049508\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"538","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5bc02fa3e4b0fc368eb53947","contributors":{"authors":[{"text":"Dzurisin, Daniel 0000-0002-0138-5067 dzurisin@usgs.gov","orcid":"https://orcid.org/0000-0002-0138-5067","contributorId":538,"corporation":false,"usgs":true,"family":"Dzurisin","given":"Daniel","email":"dzurisin@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":746253,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":146118,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":746254,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70226629,"text":"70226629 - 2018 - Accurate predictions of microscale oxygen barometry in basaltic glasses using V K-edge X-ray absorption spectroscopy: A multivariate approach","interactions":[],"lastModifiedDate":"2021-12-01T12:43:42.425767","indexId":"70226629","displayToPublicDate":"2018-07-13T06:39:35","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":738,"text":"American Mineralogist","active":true,"publicationSubtype":{"id":10}},"title":"Accurate predictions of microscale oxygen barometry in basaltic glasses using V K-edge X-ray absorption spectroscopy: A multivariate approach","docAbstract":"<p>Because magmatic oxygen fugacity (<i>f</i><sub>O2</sub>) exerts a primary control on the discrete vanadium (V) valence states that will exist in quenched melts, V valence proxies for<span>&nbsp;</span><i>f</i><sub>O2</sub>, measured using X-ray absorption near-edge spectroscopy (XANES), can provide highly sensitive measurements of the redox conditions in basaltic melts. However, published calibrations for basaltic glasses primarily relate measured intensities of specific spectral features to V valence or oxygen fugacity. These models have not exploited information contained within the entire XANES spectrum, which also provide a measure of changes in V chemical state as a function of<span>&nbsp;</span><i>f</i><sub>O2</sub>. Multivariate analysis (MVA) holds significant promise for the development of calibration models that employ the full XANES spectral range. In this study, new calibration models are developed using MVA partial least-squares (PLS) regression and least absolute shrinkage and selection operator (Lasso) regression to predict the<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>of equilibration in glasses of basaltic composition directly. The models are then tested on a suite of natural glasses from mid-ocean ridge basalts and from Kilauea. The models relate the measured XANES spectral features directly to buffer-relative<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>as the predicted variable, avoiding the need for an external measure of the V valence in the experimental glasses used to train the models. It is also shown that by predicting buffer-relative<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>directly, these models also minimize temperature-relative uncertainties in the calibration. The calibration developed using the Lasso regression model, using a Lasso hyperparameter value of α = 0.0008, yields nickel-nickel oxide (NNO) relative<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>predictions with a root-mean-square-error of ±0.33 log units. When applied to natural basaltic glasses, the V MVA calibration model generally yields predicted NNO-relative<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>values that are within the analytical uncertainty of what is calculated using Fe XANES to predict Fe<sup>3+</sup>/ΣFe. When applied to samples of natural basaltic glass collected in 2014 from an active lava flow at Kilauea, a mean<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>of NNO-1.15 ± 0.19 (1σ) is calculated, which is generally consistent with other published<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>estimates for subaerial Kilauea lavas. When applied to a sample of pillow-rim basaltic glass dredged from the East Pacific Rise, calculated<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>varies from NNO-2.67 (±0.33) to NNO-3.72 (±0.33) with distance from the quenched pillow rim. Fe oxybarometry in this sample provides an<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>of NNO-2.54 ± 0.19 (1σ), which is in good agreement with that provided by the V oxybarometry within the uncertainties of the modeling. However, the data may indicate that V XANES oxybarometry has greater sensitivity to small changes in<span>&nbsp;</span><i>f</i><sub>O2</sub><span>&nbsp;</span>at these more reduced redox conditions than can be detected using Fe XANES.</p>","language":"English","publisher":"De Gruyter","doi":"10.2138/am-2018-6319","usgsCitation":"Lanzirotti, A., Dyar, M., Sutton, S., Newville, M., Head, E., Carey, C., McCanta, M., Lee, R.L., King, P., and Jones, J., 2018, Accurate predictions of microscale oxygen barometry in basaltic glasses using V K-edge X-ray absorption spectroscopy: A multivariate approach: American Mineralogist, v. 103, no. 8, https://doi.org/10.2138/am-2018-6319.","ipdsId":"IP-091620","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":392289,"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        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.4174041748047,\n              19.188623199306065\n            ],\n            [\n              -155.05760192871094,\n              19.188623199306065\n            ],\n            [\n              -155.05760192871094,\n              19.484718252643226\n            ],\n            [\n              -155.4174041748047,\n              19.484718252643226\n            ],\n            [\n              -155.4174041748047,\n              19.188623199306065\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"103","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Lanzirotti, Antonio 0000-0002-7597-5924","orcid":"https://orcid.org/0000-0002-7597-5924","contributorId":223780,"corporation":false,"usgs":false,"family":"Lanzirotti","given":"Antonio","email":"","affiliations":[{"id":36705,"text":"University of Chicago","active":true,"usgs":false}],"preferred":false,"id":827539,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dyar, M. Darby","contributorId":269611,"corporation":false,"usgs":false,"family":"Dyar","given":"M. Darby","affiliations":[{"id":56007,"text":"Department of Astronomy, Mount Holyoke College, South Hadley, MA 01075, USA","active":true,"usgs":false}],"preferred":false,"id":827540,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sutton, Steve","contributorId":269612,"corporation":false,"usgs":false,"family":"Sutton","given":"Steve","email":"","affiliations":[{"id":56009,"text":"Center for Advanced Radiation Sources, The University of Chicago, Argonne, IL 60439, USA","active":true,"usgs":false}],"preferred":false,"id":827541,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Newville, Matthew","contributorId":269613,"corporation":false,"usgs":false,"family":"Newville","given":"Matthew","affiliations":[{"id":56009,"text":"Center for Advanced Radiation Sources, The University of Chicago, Argonne, IL 60439, USA","active":true,"usgs":false}],"preferred":false,"id":827542,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Head, Elisabet","contributorId":269614,"corporation":false,"usgs":false,"family":"Head","given":"Elisabet","affiliations":[{"id":56010,"text":"Department of Earth Science, Northeastern Illinois University, Chicago, IL 60625, USA","active":true,"usgs":false}],"preferred":false,"id":827543,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Carey, CJ","contributorId":269615,"corporation":false,"usgs":false,"family":"Carey","given":"CJ","email":"","affiliations":[{"id":56011,"text":"College of Information and Computer Sciences, University of Massachusetts, Amherst, MA 01003, USA","active":true,"usgs":false}],"preferred":false,"id":827544,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McCanta, Molly","contributorId":269616,"corporation":false,"usgs":false,"family":"McCanta","given":"Molly","affiliations":[{"id":56012,"text":"Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996, USA","active":true,"usgs":false}],"preferred":false,"id":827545,"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":827546,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"King, Penelope L.","contributorId":269617,"corporation":false,"usgs":false,"family":"King","given":"Penelope L.","affiliations":[{"id":56013,"text":"Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia","active":true,"usgs":false}],"preferred":false,"id":827547,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Jones, John","contributorId":269618,"corporation":false,"usgs":false,"family":"Jones","given":"John","affiliations":[{"id":56014,"text":"National Aeronautics and Space Administration/Johnson Space Center, Houston, TX 77058, USA","active":true,"usgs":false}],"preferred":false,"id":827548,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70211480,"text":"70211480 - 2018 - A retrospective look at the February 1993 east rift zone intrusion at Kīlauea volcano, Hawaii","interactions":[],"lastModifiedDate":"2020-07-28T22:49:01.833424","indexId":"70211480","displayToPublicDate":"2018-05-23T17:40:45","publicationYear":"2018","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":"A retrospective look at the February 1993 east rift zone intrusion at Kīlauea volcano, Hawaii","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"ab0005\" class=\"abstract author\" lang=\"en\"><div id=\"as0005\"><p id=\"sp0075\"><span>The February 1993 dike intrusion in the East&nbsp;Rift Zone&nbsp;(ERZ) of Kīlauea&nbsp;Volcano, Hawai'i, was recognized from tilt and&nbsp;seismic data, but ground-based&nbsp;geodetic data&nbsp;were too sparse to constrain the characteristics of the intrusion. Analysis of Interferometric Synthetic Aperture Radar (InSAR) from the Japan Aerospace Exploration Agency (JAXA)&nbsp;JERS-1&nbsp;satellite reveals a maximum of ~30 cm of line-of-sight (LOS) displacement occurring near Makaopuhi&nbsp;Crater&nbsp;in the middle ERZ of Kīlauea. We model this deformation signal as a subvertical dike using a 3D-Mixed&nbsp;Boundary Element Method&nbsp;(3D-MBEM) paired with a nonlinear inversion algorithm to find the best-fit model. The best-fit dike is located just to the west of Makaopuhi Crater striking N50°W, extends to within 100 m of the surface, is ~1.3 km in length by ~4.2 km in width along strike, and has a total volume of ~7.4 × 10</span><sup>6</sup> m<sup>3</sup><span>. In addition, a post-intrusion&nbsp;interferogram&nbsp;from JERS-1 spanning 1993–1997 was analyzed. Guided by previous results, our model for the 4-year period consists of opening of the deep rift zones by about 0.5 m at 3–8.5 km depth beneath the Southwest Rift Zone (SWRZ), ERZ and the summit. A sub-horizontal&nbsp;detachment fault&nbsp;is connected to the seaward side of the vertical dike-like source to mimic the&nbsp;décollement&nbsp;known to exist beneath the volcano. We classify the 1993 dike intrusion as a passive intrusion similar to those that occurred in 1997 and 1999. Passive intrusions lack precursory inflation at Kīlauea's summit, and the likely triggering mechanism is persistent deep rift opening combined with seaward motion of the south flank along the basal décollement. Passive intrusions make forecasting and hazard assessment difficult since they are not preceded by inflation nor by large increases in&nbsp;seismicity.</span></p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2018.05.017","usgsCitation":"Conway, S., Wauthier, C., Fukushima, Y., and Poland, M.P., 2018, A retrospective look at the February 1993 east rift zone intrusion at Kīlauea volcano, Hawaii: Journal of Volcanology and Geothermal Research, v. 358, p. 241-251, https://doi.org/10.1016/j.jvolgeores.2018.05.017.","productDescription":"114 p.","startPage":"241","endPage":"251","ipdsId":"IP-090650","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":376803,"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              -155.53070068359375,\n              19.235956641468505\n            ],\n            [\n              -154.86190795898438,\n              19.235956641468505\n            ],\n            [\n              -154.86190795898438,\n              19.48536557300507\n            ],\n            [\n              -155.53070068359375,\n              19.48536557300507\n            ],\n            [\n              -155.53070068359375,\n              19.235956641468505\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"358","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Conway, Sarah 0000-0003-1953-5550","orcid":"https://orcid.org/0000-0003-1953-5550","contributorId":215609,"corporation":false,"usgs":true,"family":"Conway","given":"Sarah","email":"","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":794228,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wauthier, Christelle","contributorId":81011,"corporation":false,"usgs":true,"family":"Wauthier","given":"Christelle","affiliations":[],"preferred":false,"id":794229,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fukushima, Yo","contributorId":236709,"corporation":false,"usgs":false,"family":"Fukushima","given":"Yo","email":"","affiliations":[],"preferred":false,"id":794230,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":146118,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":794231,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70261215,"text":"70261215 - 2017 - Timescales of mixing and storage for Keanakāko‘i Tephra magmas (1500-1823 C.E.), Kīlauea Volcano, Hawai‘i","interactions":[],"lastModifiedDate":"2024-12-02T14:41:32.901675","indexId":"70261215","displayToPublicDate":"2017-08-18T08:34:42","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Timescales of mixing and storage for Keanakāko‘i Tephra magmas (1500-1823 C.E.), Kīlauea Volcano, Hawai‘i","docAbstract":"<p><span>The last 2500&nbsp;years of activity at Kīlauea Volcano (Hawai‘i) have been characterized by centuries-long periods dominated by either effusive or explosive eruptions. The most recent period of explosive activity produced the Keanakāko‘i Tephra (KT; ca. 1500–1820 C.E.) and occurred after the collapse of the summit caldera (1470–1510 C.E.). Previous studies suggest that KT magmas may have ascended rapidly to the surface, bypassing storage in crustal reservoirs. The storage conditions and rapid ascent hypothesis are tested here using chemical zoning in olivine crystals and thermodynamic modeling. Forsterite contents (Fo; [Mg/(Mg&nbsp;+&nbsp;Fe)&nbsp;×&nbsp;100]) of olivine core and rim populations are used to identify melt components in Kīlauea’s prehistoric (i.e., pre-1823) plumbing system. Primitive (≥Fo</span><sub>88</sub><span>) cores occur throughout the 300+ years of the KT period; they originated from mantle-derived magmas that were first mixed and stored in a deep crustal reservoir. Bimodal olivine populations (≥Fo</span><sub>88</sub><span>&nbsp;and Fo</span><sub>83–84</sub><span>) record repeated mixing of primitive magmas and more differentiated reservoir components shallower in the system, producing a hybrid composition (Fo</span><sub>85–87</sub><span>). Phase equilibria modeling using MELTS shows that liquidus olivine is not stable at depths &gt;17&nbsp;km. Thus, calculated timescales likely record mixing and storage within the crust. Modeling of Fe–Mg and Ni zoning patterns (normal, reverse, complex) reveal that KT magmas were mixed and stored for a few weeks to several years before eruption, illustrating a more complex storage history than direct and rapid ascent from the mantle as previously inferred for KT magmas. Complexly zoned crystals also have smoothed compositional reversals in the outer 5–20&nbsp;µm rims that are out of Fe–Mg equilibrium with surrounding glasses. Diffusion models suggest that these rims formed within a few hours to a few days, indicating that at least one additional, late-stage mixing event may have occurred shortly prior to eruption. Our study illustrates that the lifetimes of KT magmas are more complex than previously proposed, and that most KT magmas did not rise rapidly from the mantle without modification during shallow crustal storage.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00410-017-1395-4","usgsCitation":"Lynn, K., Garcia, M.O., Shea, T., Costa, F., and Swanson, D., 2017, Timescales of mixing and storage for Keanakāko‘i Tephra magmas (1500-1823 C.E.), Kīlauea Volcano, Hawai‘i: Contributions to Mineralogy and Petrology, v. 172, 76, 20 p., https://doi.org/10.1007/s00410-017-1395-4.","productDescription":"76, 20 p.","ipdsId":"IP-084826","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":464613,"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              -155.33339726285445,\n              19.47218468157476\n            ],\n            [\n              -155.33339726285445,\n              19.36470404669582\n            ],\n            [\n              -155.18967274036802,\n              19.36470404669582\n            ],\n            [\n              -155.18967274036802,\n              19.47218468157476\n            ],\n            [\n              -155.33339726285445,\n              19.47218468157476\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"172","noUsgsAuthors":false,"publicationDate":"2017-08-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Lynn, Kendra J.","contributorId":346804,"corporation":false,"usgs":false,"family":"Lynn","given":"Kendra J.","affiliations":[{"id":82969,"text":"iversity of Delaware","active":true,"usgs":false}],"preferred":false,"id":919929,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":919930,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":919931,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Costa, Fidel","contributorId":184169,"corporation":false,"usgs":false,"family":"Costa","given":"Fidel","email":"","affiliations":[],"preferred":false,"id":919932,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swanson, Donald A. 0000-0002-1680-3591","orcid":"https://orcid.org/0000-0002-1680-3591","contributorId":229682,"corporation":false,"usgs":true,"family":"Swanson","given":"Donald A.","affiliations":[],"preferred":true,"id":919933,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70260165,"text":"70260165 - 2017 - Relative seismic velocity variations correlate with deformation at Kilauea volcano","interactions":[],"lastModifiedDate":"2024-10-29T16:36:28.328642","indexId":"70260165","displayToPublicDate":"2017-06-28T11:31:51","publicationYear":"2017","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5010,"text":"Science Advances","active":true,"publicationSubtype":{"id":10}},"title":"Relative seismic velocity variations correlate with deformation at Kilauea volcano","docAbstract":"<p><span>Seismic noise interferometry allows the continuous and real-time measurement of relative seismic velocity through a volcanic edifice. Because seismic velocity is sensitive to the pressurization state of the system, this method is an exciting new monitoring tool at active volcanoes. Despite the potential of this tool, no studies have yet comprehensively compared velocity to other geophysical observables on a short-term time scale at a volcano over a significant length of time. We use volcanic tremor (~0.3 to 1.0 Hz) at Kīlauea as a passive source for interferometry to measure relative velocity changes with time. By cross-correlating the vertical component of day-long seismic records between ~230 station pairs, we extract coherent and temporally consistent coda wave signals with time lags of up to 120 s. Our resulting time series of relative velocity shows a remarkable correlation between relative velocity and the radial tilt record measured at Kīlauea summit, consistently correlating on a time scale of days to weeks for almost the entire study period (June 2011 to November 2015). As the summit continually deforms in deflation-inflation events, the velocity decreases and increases, respectively. Modeling of strain at Kīlauea suggests that, during inflation of the shallow magma reservoir (1 to 2 km below the surface), most of the edifice is dominated by compression—hence closing cracks and producing faster velocities—and vice versa. The excellent correlation between relative velocity and deformation in this study provides an opportunity to understand better the mechanisms causing seismic velocity changes at volcanoes, and therefore realize the potential of passive interferometry as a monitoring tool.</span></p>","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/sciadv.1700219","usgsCitation":"Donaldson, C., Caudron, C., Green, R.G., Thelen, W., and White, R.S., 2017, Relative seismic velocity variations correlate with deformation at Kilauea volcano: Science Advances, v. 3, no. 6, e1700219, 11 p., https://doi.org/10.1126/sciadv.1700219.","productDescription":"e1700219, 11 p.","ipdsId":"IP-083447","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":469731,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1126/sciadv.1700219","text":"Publisher Index Page"},{"id":463355,"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              -155.325723708716,\n              19.49947196116156\n            ],\n            [\n              -155.325723708716,\n              19.284036313524524\n            ],\n            [\n              -155.0991657820145,\n              19.284036313524524\n            ],\n            [\n              -155.0991657820145,\n              19.49947196116156\n            ],\n            [\n              -155.325723708716,\n              19.49947196116156\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"3","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Donaldson, Clare","contributorId":345696,"corporation":false,"usgs":false,"family":"Donaldson","given":"Clare","email":"","affiliations":[{"id":27136,"text":"University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":917281,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Caudron, Corentin 0000-0002-3748-0007","orcid":"https://orcid.org/0000-0002-3748-0007","contributorId":224799,"corporation":false,"usgs":false,"family":"Caudron","given":"Corentin","email":"","affiliations":[{"id":40942,"text":"Université Grenoble Alpes, Université Savoie, ISTerre, Grenoble, France","active":true,"usgs":false}],"preferred":false,"id":917282,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Green, Robert G.","contributorId":345697,"corporation":false,"usgs":false,"family":"Green","given":"Robert","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":917283,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"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":917284,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"White, Robert S","contributorId":345698,"corporation":false,"usgs":false,"family":"White","given":"Robert","email":"","middleInitial":"S","affiliations":[],"preferred":false,"id":917285,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70211549,"text":"70211549 - 2016 - Thermal mapping of a pahoehoe lava flow, Kilauea Volcano","interactions":[],"lastModifiedDate":"2020-07-30T15:01:51.901725","indexId":"70211549","displayToPublicDate":"2016-12-30T09:56:32","publicationYear":"2016","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":"Thermal mapping of a pahoehoe lava flow, Kilauea Volcano","docAbstract":"Pāhoehoe lava flows are a major component of Hawaiian eruptive activity, and an important part of basaltic volcanism worldwide.  In recent years, pāhoehoe lava has destroyed homes and threatened parts of Hawai‘i with inundation and disruption.  In this study, we use oblique helicopter-borne thermal images to create high spatial resolution (~1 m) georeferenced thermal maps of the active pāhoehoe flow on Kīlauea Volcano’s East Rift Zone.  Thermal maps were created on 27 days during 2014–2016 in the course of operational monitoring, encompassing a phase of activity that threatened the town of Pāhoa.  Our results illustrate and reinforce how pāhoehoe flows are multicomponent systems consisting of the vent, master tube, distributary tubes and surface breakouts.  The thermal maps accurately depict the distribution and character of pāhoehoe breakouts through time, and also delineate the subsurface lava tube.  Surface breakouts were distributed widely across the pāhoehoe flow, with significant portions concurrently active well upslope of the flow front, often concentrated in clusters of activity that evolved through time.  Gradual changes to surface breakout distribution and migration relate to intrinsic processes in the flow, including the slow evolution of the distributary tube system.  Abrupt disruptions to this system, and the creation of new breakouts (and associated hazards), were triggered by extrinsic forcing—namely fluctuations in lava supply rate at the vent which disrupted the master lava tube.  Although the total area of a pāhoehoe flow has been suggested to relate to effusion rate, our results show that changes in the proportion of expansion vs. overplating can complicate this relationship.  By modifying existing techniques, we estimate time-averaged discharge rates for the flow during 2014–2016 generally in the range of 1–2 m3 s-1 (mean: 1.3±0.4 m3 s-1) – less than half of Kīlauea’s typical eruption rate on the East Rift Zone and suggestive of a weak eruptive regime during 2014–2016.  We caution, however, that this discharge rate approach requires further independent corroboration. The thermal maps provide the first synoptic characterization of pāhoehoe flow activity at high spatial resolution, essential both for operational hazard assessment and fundamental understanding of pāhoehoe behavior.","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2016.12.007","usgsCitation":"Patrick, M.R., Orr, T.R., Fisher, G.B., Trusdell, F., and Kauahikaua, J.P., 2016, Thermal mapping of a pahoehoe lava flow, Kilauea Volcano: Journal of Volcanology and Geothermal Research, v. 332, p. 71-87, https://doi.org/10.1016/j.jvolgeores.2016.12.007.","productDescription":"17 p.","startPage":"71","endPage":"87","ipdsId":"IP-076230","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":376891,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kīlauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.3102874755859,\n              19.38759093442151\n            ],\n            [\n              -155.2333831787109,\n              19.38759093442151\n            ],\n            [\n              -155.2333831787109,\n              19.444579339485816\n            ],\n            [\n              -155.3102874755859,\n              19.444579339485816\n            ],\n            [\n              -155.3102874755859,\n              19.38759093442151\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"332","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"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":794589,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orr, Tim R. 0000-0003-1157-7588 torr@usgs.gov","orcid":"https://orcid.org/0000-0003-1157-7588","contributorId":149803,"corporation":false,"usgs":true,"family":"Orr","given":"Tim","email":"torr@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":794590,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fisher, Gary B. 0000-0001-8777-0216 gtfisher@usgs.gov","orcid":"https://orcid.org/0000-0001-8777-0216","contributorId":215627,"corporation":false,"usgs":true,"family":"Fisher","given":"Gary","email":"gtfisher@usgs.gov","middleInitial":"B.","affiliations":[{"id":36171,"text":"National Civil Applications Center","active":true,"usgs":true}],"preferred":true,"id":794591,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"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":794592,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"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":794593,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70182796,"text":"70182796 - 2016 - Isotopic constraints on the genesis and evolution of basanitic lavas at Haleakala, Island of Maui, Hawaii","interactions":[],"lastModifiedDate":"2020-09-26T15:17:41.824779","indexId":"70182796","displayToPublicDate":"2016-12-15T00:00:00","publicationYear":"2016","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Isotopic constraints on the genesis and evolution of basanitic lavas at Haleakala, Island of Maui, Hawaii","docAbstract":"<p><span>To understand the dynamics of solid mantle upwelling and melting in the Hawaiian plume, we present new major and trace element data, Nd, Sr, Hf, and Pb isotopic compositions, and </span><sup>238</sup><span>U–</span><sup>230</sup><span>Th–</span><sup>226</sup><span>Ra and </span><sup>235</sup><span>U–</span><sup>231</sup><span>Pa–</span><sup>227</sup><span>Ac activities for 13 Haleakala Crater nepheline normative basanites with ages ranging from ∼900 to 4100&nbsp;yr B.P. These basanites of the Hana Volcanics exhibit an enrichment in incompatible trace elements and a more depleted isotopic signature than similarly aged Hawaiian shield lavas from Kilauea and Mauna Loa. Here we posit that as the Pacific lithosphere beneath the active shield volcanoes moves away from the center of the Hawaiian plume, increased incorporation of an intrinsic depleted component with relatively low </span><sup>206</sup><span>Pb/</span><sup>204</sup><span>Pb produces the source of the basanites of the Hana Volcanics. Haleakala Crater basanites have average (</span><sup>230</sup><span>Th/</span><sup>238</sup><span>U) of 1.23 (</span><i>n</i><span>&nbsp;=&nbsp;13), average age-corrected (</span><sup>226</sup><span>Ra/</span><sup>230</sup><span>Th) of 1.25 (</span><i>n</i><span>&nbsp;=&nbsp;13), and average (</span><sup>231</sup><span>Pa/</span><sup>235</sup><span>U) of 1.67 (</span><i>n</i><span>&nbsp;=&nbsp;4), significantly higher than Kilauea and Mauna Loa tholeiites. U-series modeling shows that solid mantle upwelling velocity for Haleakala Crater basanites ranges from ∼0.7 to 1.0&nbsp;cm/yr, compared to ∼10 to 20&nbsp;cm/yr for tholeiites and ∼1 to 2&nbsp;cm/yr for alkali basalts. These modeling results indicate that solid mantle upwelling rates and porosity of the melting zone are lower for Hana Volcanics basanites than for shield-stage tholeiites from Kilauea and Mauna Loa and alkali basalts from Hualalai. The melting rate, which is directly proportional to both the solid mantle upwelling rate and the degree of melting, is therefore greatest in the center of the Hawaiian plume and lower on its periphery. Our results indicate that solid mantle upwelling velocity is at least 10 times higher at the center of the plume than at its periphery under Haleakala.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.gca.2016.08.017","usgsCitation":"Phillips, E.H., Sims, K., Sherrod, D.R., Salters, V., Blusztajn, J., and Dulaiova, H., 2016, Isotopic constraints on the genesis and evolution of basanitic lavas at Haleakala, Island of Maui, Hawaii: Geochimica et Cosmochimica Acta, v. 195, p. 201-225, https://doi.org/10.1016/j.gca.2016.08.017.","productDescription":"25 p.","startPage":"201","endPage":"225","ipdsId":"IP-068629","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":470322,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://hdl.handle.net/1912/8691","text":"Publisher Index Page"},{"id":336726,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Haleakala","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156.26678466796875,\n              20.915265785641992\n            ],\n            [\n              -156.29150390625,\n              20.83571086093366\n            ],\n            [\n              -156.12121582031247,\n              20.668765746375158\n            ],\n            [\n              -156.104736328125,\n              20.630213817744696\n            ],\n            [\n              -155.99212646484375,\n              20.694461597907797\n            ],\n            [\n              -155.972900390625,\n              20.756113874762082\n            ],\n            [\n              -156.02508544921875,\n              20.82800976296467\n            ],\n            [\n              -156.2200927734375,\n              20.938354479616375\n            ],\n            [\n              -156.26678466796875,\n              20.915265785641992\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"195","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b7eba4e4b01ccd5500bae5","contributors":{"authors":[{"text":"Phillips, Erin H.","contributorId":184202,"corporation":false,"usgs":false,"family":"Phillips","given":"Erin","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":673775,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sims, K.W.W.","contributorId":184203,"corporation":false,"usgs":false,"family":"Sims","given":"K.W.W.","email":"","affiliations":[],"preferred":false,"id":673776,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sherrod, David R. 0000-0001-9460-0434 dsherrod@usgs.gov","orcid":"https://orcid.org/0000-0001-9460-0434","contributorId":527,"corporation":false,"usgs":true,"family":"Sherrod","given":"David","email":"dsherrod@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":673774,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Salters, Vincent","contributorId":184204,"corporation":false,"usgs":false,"family":"Salters","given":"Vincent","email":"","affiliations":[],"preferred":false,"id":673777,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Blusztajn, Jurek","contributorId":184205,"corporation":false,"usgs":false,"family":"Blusztajn","given":"Jurek","email":"","affiliations":[],"preferred":false,"id":673778,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dulaiova, Henrieta","contributorId":184206,"corporation":false,"usgs":false,"family":"Dulaiova","given":"Henrieta","email":"","affiliations":[],"preferred":false,"id":673779,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70177857,"text":"70177857 - 2016 - Joint analysis of geodetic and earthquake fault-plane solution data to constrain magmatic sources: A case study from Kīlauea Volcano","interactions":[],"lastModifiedDate":"2019-12-14T07:04:38","indexId":"70177857","displayToPublicDate":"2016-10-25T11:00:00","publicationYear":"2016","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":"Joint analysis of geodetic and earthquake fault-plane solution data to constrain magmatic sources: A case study from Kīlauea Volcano","docAbstract":"<p><span>A joint analysis of geodetic and seismic datasets from Kīlauea Volcano during a period of magmatic unrest in 2006 demonstrates the effectiveness of this combination for testing and constraining models of magma dynamics for a complex, multi-source system. At the end of 2003, Kīlauea's summit began a four-year-long period of inflation due to a surge in magma supply to the volcano. In 2006, for the first time since 1982, Kīlauea's Southwest Rift Zone (SWRZ) also experienced inflation. To investigate the characteristics of active magma sources and the nature of their interactions with faults in the SWRZ during 2006, we integrate, through Coulomb stress modeling, contemporary geodetic data from InSAR and GPS with a new catalogue of double-couple fault-plane solutions for volcano-tectonic earthquakes. We define two periods of inflation during 2006 based on the rate of deformation measured in daily GPS data, spanning February to 15 March 2006 (Period 1) and 16 March to 30 September 2006 (Period 2). InSAR data for these two periods are inverted to determine the position, change in size, and shape of inflation sources in each period. Our new models are consistent with microseismic activity from each period. They suggest that, during Period 1, deformation in the SWRZ can be explained by pressurization of magma in a spherical reservoir beneath the south caldera, and that, during Period 2, magma was also aseismically intruded farther to the southwest into the SWRZ along a sub-horizontal plane. Our Coulomb stress analysis shows that the microseismicity recorded in the SWRZ is induced by overpressurization of the south caldera reservoir, and not by magma intrusion into the SWRZ. This study highlights the importance of a joint analysis of independent geophysical datasets to fully constrain the nature of magma accumulation.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2016.09.011","usgsCitation":"Wauthier, C., Roman, D.C., and Poland, M.P., 2016, Joint analysis of geodetic and earthquake fault-plane solution data to constrain magmatic sources: A case study from Kīlauea Volcano: Earth and Planetary Science Letters, v. 455, p. 38-48, https://doi.org/10.1016/j.epsl.2016.09.011.","productDescription":"11 p.","startPage":"38","endPage":"48","ipdsId":"IP-077131","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":462057,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.epsl.2016.09.011","text":"Publisher Index Page"},{"id":330354,"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              -155.34942626953125,\n              19.199647272639126\n            ],\n            [\n              -154.98687744140625,\n              19.199647272639126\n            ],\n            [\n              -154.98687744140625,\n              19.4665922322076\n            ],\n            [\n              -155.34942626953125,\n              19.4665922322076\n            ],\n            [\n              -155.34942626953125,\n              19.199647272639126\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"455","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58106f97e4b0f497e796110d","contributors":{"authors":[{"text":"Wauthier, Christelle","contributorId":176224,"corporation":false,"usgs":false,"family":"Wauthier","given":"Christelle","email":"","affiliations":[],"preferred":false,"id":651948,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roman, Diana C.","contributorId":176225,"corporation":false,"usgs":false,"family":"Roman","given":"Diana","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":651949,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":146118,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":651947,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70176203,"text":"70176203 - 2016 - Insights into shallow magmatic processes at Kīlauea Volcano, Hawaiʻi, from a multiyear continuous gravity time series","interactions":[],"lastModifiedDate":"2018-10-25T16:15:23","indexId":"70176203","displayToPublicDate":"2016-09-01T17:50:00","publicationYear":"2016","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Insights into shallow magmatic processes at Kīlauea Volcano, Hawaiʻi, from a multiyear continuous gravity time series","docAbstract":"<p><span>Continuous gravity data collected near the summit eruptive vent at Kīlauea Volcano, Hawaiʻi, during 2011–2015 show a strong correlation with summit-area surface deformation and the level of the lava lake within the vent over periods of days to weeks, suggesting that changes in gravity reflect variations in volcanic activity. Joint analysis of gravity and lava level time series data indicates that over the entire time period studied, the average density of the lava within the upper tens to hundreds of meters of the summit eruptive vent remained low—approximately 1000–1500 kg/m</span><sup>3</sup><span>. The ratio of gravity change (adjusted for Earth tides and instrumental drift) to lava level change measured over 15 day windows rose gradually over the course of 2011–2015, probably reflecting either (1) a small increase in the density of lava within the eruptive vent or (2) an increase in the volume of lava within the vent due to gradual vent enlargement. Superimposed on the overall time series were transient spikes of mass change associated with inflation and deflation of Kīlauea's summit and coincident changes in lava level. The unexpectedly strong mass variations during these episodes suggest magma flux to and from the shallow magmatic system without commensurate deformation, perhaps indicating magma accumulation within, and withdrawal from, void space—a process that might not otherwise be apparent from lava level and deformation data alone. Continuous gravity data thus provide unique insights into magmatic processes, arguing for continued application of the method at other frequently active volcanoes.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2016JB013057","usgsCitation":"Poland, M., and Carbone, D., 2016, Insights into shallow magmatic processes at Kīlauea Volcano, Hawaiʻi, from a multiyear continuous gravity time series: Journal of Geophysical Research B: Solid Earth, v. 121, no. 7, p. 5477-5492, https://doi.org/10.1002/2016JB013057.","productDescription":"16 p.","startPage":"5477","endPage":"5492","ipdsId":"IP-074796","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":328213,"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              -155.30393600463867,\n              19.39050559875186\n            ],\n            [\n              -155.30393600463867,\n              19.44296062654318\n            ],\n            [\n              -155.23029327392578,\n              19.44296062654318\n            ],\n            [\n              -155.23029327392578,\n              19.39050559875186\n            ],\n            [\n              -155.30393600463867,\n              19.39050559875186\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"121","issue":"7","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2016-07-28","publicationStatus":"PW","scienceBaseUri":"57c94320e4b0f2f0cec1359d","contributors":{"authors":[{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":635,"corporation":false,"usgs":true,"family":"Poland","given":"Michael P.","email":"mpoland@usgs.gov","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":647788,"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":647789,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70175561,"text":"70175561 - 2016 - Volcanic air pollution over the Island of Hawai'i: Emissions, dispersal, and composition. Association with respiratory symptoms and lung function in Hawai'i Island school children","interactions":[],"lastModifiedDate":"2016-08-17T09:07:10","indexId":"70175561","displayToPublicDate":"2016-08-17T10:00:00","publicationYear":"2016","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1523,"text":"Environment International","active":true,"publicationSubtype":{"id":10}},"title":"Volcanic air pollution over the Island of Hawai'i: Emissions, dispersal, and composition. Association with respiratory symptoms and lung function in Hawai'i Island school children","docAbstract":"<h4 id=\"absSec_1\">Background</h4>\n<p id=\"sp0070\">Kilauea Volcano on the Island of Hawai'i has erupted continuously since 1983, releasing approximately 300&ndash;12000&nbsp;metric&nbsp;tons per day of sulfur dioxide (SO<sub>2</sub>). SO<sub>2</sub>&nbsp;interacts with water vapor to produce an acidic haze known locally as &ldquo;vog&rdquo;. The combination of wind speed and direction, inversion layer height, and local terrain lead to heterogeneous and variable distribution of vog over the island, allowing study of respiratory effects associated with chronic vog exposure.</p>\n<h4 id=\"absSec_2\">Objectives</h4>\n<p id=\"sp0075\">We characterized the distribution and composition of vog over the Island of Hawai'i, and tested the hypotheses that chronic vog exposure (SO<sub>2</sub>&nbsp;and acid) is associated with increased asthma prevalence, respiratory symptoms, and reduced pulmonary function in Hawai'i Island schoolchildren.</p>\n<h4 id=\"absSec_3\">Methods</h4>\n<p id=\"sp0080\">We compiled data of volcanic emissions, wind speed, and wind direction over Hawai'i Island since 1992. Community-based researchers then measured 2- to 4-week integrated concentrations of SO<sub>2</sub>&nbsp;and fine particulate mass and acidity in 4 exposure zones, from 2002 to 2005, when volcanic SO<sub>2</sub>&nbsp;emissions averaged 1600&nbsp;metric&nbsp;tons per day. Concurrently, community researchers recruited schoolchildren in the 4th and 5th grades of 25 schools in the 4 vog exposure zones, to assess determinants of lung health, respiratory symptoms, and asthma prevalence.</p>\n<h4 id=\"absSec_4\">Results</h4>\n<p id=\"sp0085\">Environmental data suggested 4 different vog exposure zones with SO<sub>2</sub>, PM2.5, and particulate acid concentrations (mean&nbsp;&plusmn;&nbsp;s.d.) as follows: 1) Low (0.3&nbsp;&plusmn;&nbsp;0.2&nbsp;ppb, 2.5&nbsp;&plusmn;&nbsp;1.2&nbsp;&mu;g/m<sup>3</sup>, 0.6&nbsp;&plusmn;&nbsp;1.1&nbsp;nmol&nbsp;H&nbsp;+/m<sup>3</sup>), 2) Intermittent (1.6&nbsp;&plusmn;&nbsp;1.8&nbsp;ppb, 2.8&nbsp;&plusmn;&nbsp;1.5&nbsp;&mu;g/m<sup>3</sup>, 4.0&nbsp;&plusmn;&nbsp;6.6&nbsp;nmol&nbsp;H&nbsp;+/m<sup>3</sup>), 3) Frequent (10.1&nbsp;&plusmn;&nbsp;5.2&nbsp;ppb, 4.8&nbsp;&plusmn;&nbsp;1.9&nbsp;&mu;g/m<sup>3</sup>, 4.3&nbsp;&plusmn;&nbsp;6.7&nbsp;nmol&nbsp;H&nbsp;+/m<sup>3</sup>), and 4) Acid (1.2&nbsp;&plusmn;&nbsp;0.4&nbsp;ppb, 7.2&nbsp;&plusmn;&nbsp;2.3&nbsp;&mu;g/m<sup>3</sup>, 25.3&nbsp;&plusmn;&nbsp;17.9&nbsp;nmol&nbsp;H&nbsp;+/m<sup>3</sup>). Participants (1957) in the 4 zones differed in race, prematurity, maternal smoking during pregnancy, environmental tobacco smoke exposure, presence of mold in the home, and physician-diagnosed asthma. Multivariable analysis showed an association between Acid vog exposure and cough and strongly suggested an association with FEV1/FVC &lt;&nbsp;0.8, but not with diagnosis of asthma, or chronic persistent wheeze or bronchitis in the last 12&nbsp;months. Conclusions: Hawai'i Island's volcanic air pollution can be very acidic, but contains few co-contaminants originating from anthropogenic sources of air pollution. Chronic exposure to acid vog is associated with increased cough and possibly with reduced FEV1/FVC, but not with asthma or bronchitis. Further study is needed to better understand how volcanic air pollution interacts with host and environmental factors to affect respiratory symptoms, lung function, and lung growth, and to determine acute effects of episodes of increased emissions.</p>","language":"English","publisher":"Permagon","publisherLocation":"New York","doi":"10.1016/j.envint.2016.03.025","usgsCitation":"Tam, E.K., Miike, R., Labrenz, S., Sutton, A., Elias, T., Davis, J., Chen, Y., Tantisira, K., Dockery, D., and Avol, E., 2016, Volcanic air pollution over the Island of Hawai'i: Emissions, dispersal, and composition. 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Burns School of Medicine, University of Hawaii","active":true,"usgs":false}],"preferred":false,"id":645701,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sutton, Andrew ajsutton@usgs.gov","contributorId":156244,"corporation":false,"usgs":true,"family":"Sutton","given":"Andrew","email":"ajsutton@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":645698,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Elias, Tamar 0000-0002-9592-4518 telias@usgs.gov","orcid":"https://orcid.org/0000-0002-9592-4518","contributorId":3916,"corporation":false,"usgs":true,"family":"Elias","given":"Tamar","email":"telias@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":645704,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Davis, James A.","contributorId":69289,"corporation":false,"usgs":true,"family":"Davis","given":"James A.","affiliations":[],"preferred":false,"id":645706,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Chen, Yi-Leng","contributorId":173747,"corporation":false,"usgs":false,"family":"Chen","given":"Yi-Leng","email":"","affiliations":[{"id":27289,"text":"Department of Meteorology, University of Hawaii","active":true,"usgs":false}],"preferred":false,"id":645705,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Tantisira, Kelan","contributorId":173746,"corporation":false,"usgs":false,"family":"Tantisira","given":"Kelan","email":"","affiliations":[{"id":27288,"text":"Harvard School of Public Health, Harvard University","active":true,"usgs":false}],"preferred":false,"id":645703,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Dockery, Douglas","contributorId":173748,"corporation":false,"usgs":false,"family":"Dockery","given":"Douglas","email":"","affiliations":[{"id":27288,"text":"Harvard School of Public Health, Harvard University","active":true,"usgs":false}],"preferred":false,"id":645707,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Avol, Edward","contributorId":173745,"corporation":false,"usgs":false,"family":"Avol","given":"Edward","email":"","affiliations":[{"id":27287,"text":"Keck School of Medicine, University of Southern California","active":true,"usgs":false}],"preferred":false,"id":645702,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70170979,"text":"70170979 - 2016 - Lithospheric flexure under the Hawaiian volcanic load: Internal stresses and a broken plate revealed by earthquakes","interactions":[],"lastModifiedDate":"2016-05-16T11:32:16","indexId":"70170979","displayToPublicDate":"2016-05-16T12:30:00","publicationYear":"2016","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Lithospheric flexure under the Hawaiian volcanic load: Internal stresses and a broken plate revealed by earthquakes","docAbstract":"<p><span>Several lines of earthquake evidence indicate that the lithospheric plate is broken under the load of the island of Hawai`i, where the geometry of the lithosphere is circular with a central depression. The plate bends concave&nbsp;</span><i>downward</i><span>&nbsp;surrounding a stress-free hole, rather than bending concave&nbsp;</span><i>upward</i><span>&nbsp;as with past assumptions. Earthquake focal mechanisms show that the center of load stress and the weak hole is between the summits of Mauna Loa and Mauna Kea where the load is greatest. The earthquake gap at 21&thinsp;km depth coincides with the predicted neutral plane of flexure where horizontal stress changes sign. Focal mechanism&nbsp;</span><i>P</i><span>&nbsp;axes below the neutral plane display a striking radial pattern pointing to the stress center. Earthquakes above the neutral plane in the north part of the island have opposite stress patterns;&nbsp;</span><i>T</i><span>&nbsp;axes tend to be radial. The&nbsp;</span><i>M</i><span>6.2 Honomu and&nbsp;</span><i>M</i><span>6.7 Kiholo main shocks (both at 39&thinsp;km depth) are below the neutral plane and show&nbsp;</span><i>radial</i><span>&nbsp;compression, and the&nbsp;</span><i>M</i><span>6.0 Kiholo aftershock above the neutral plane has&nbsp;</span><i>tangential</i><span>&nbsp;compression. Earthquakes deeper than 20&thinsp;km define a donut of seismicity around the stress center where flexural bending is a maximum. The hole is interpreted as the soft center where the lithospheric plate is broken. Kilauea's deep conduit is seismically active because it is in the ring of maximum bending. A simplified two-dimensional stress model for a bending slab with a load at one end yields stress orientations that agree with earthquake stress axes and radial&nbsp;</span><i>P</i><span>&nbsp;axes below the neutral plane. A previous inversion of deep Hawaiian focal mechanisms found a circular solution around the stress center that agrees with the model. For horizontal faults, the shear stress within the bending slab matches the slip in the deep Kilauea seismic zone and enhances outward slip of active flanks.</span></p>","language":"English","publisher":"AGU Publications","doi":"10.1002/2015JB012746","usgsCitation":"Klein, F.W., 2016, Lithospheric flexure under the Hawaiian volcanic load: Internal stresses and a broken plate revealed by earthquakes: Journal of Geophysical Research B: Solid Earth, v. 121, no. 4, p. 2400-2428, https://doi.org/10.1002/2015JB012746.","productDescription":"29 p.","startPage":"2400","endPage":"2428","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-070787","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":470994,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2015jb012746","text":"Publisher Index Page"},{"id":321234,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156.08551025390625,\n              18.890695349102117\n            ],\n            [\n              -156.08551025390625,\n              20.2982655686933\n            ],\n            [\n              -154.78912353515625,\n              20.2982655686933\n            ],\n            [\n              -154.78912353515625,\n              18.890695349102117\n            ],\n            [\n              -156.08551025390625,\n              18.890695349102117\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"121","issue":"4","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2016-04-08","publicationStatus":"PW","scienceBaseUri":"574d5667e4b07e28b667f77b","contributors":{"authors":[{"text":"Klein, Fred W. klein@usgs.gov","contributorId":4417,"corporation":false,"usgs":true,"family":"Klein","given":"Fred","email":"klein@usgs.gov","middleInitial":"W.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":629311,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70170948,"text":"70170948 - 2016 - Automated tracking of lava lake level using thermal images at Kīlauea Volcano, Hawai’i","interactions":[],"lastModifiedDate":"2016-06-24T11:31:04","indexId":"70170948","displayToPublicDate":"2016-05-12T09:45:00","publicationYear":"2016","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":"Automated tracking of lava lake level using thermal images at Kīlauea Volcano, Hawai’i","docAbstract":"<p>Tracking the level of the lava lake in Halema&lsquo;uma&lsquo;u Crater, at the summit of Kīlauea Volcano, Hawai&rsquo;i, is an essential part of monitoring the ongoing eruption and forecasting potentially hazardous changes in activity. We describe a simple automated image processing routine that analyzes continuously-acquired thermal images of the lava lake and measures lava level. The method uses three image segmentation approaches, based on edge detection, short-term change analysis, and composite temperature thresholding, to identify and track the lake margin in the images. These relative measurements from the images are periodically calibrated with laser rangefinder measurements to produce real-time estimates of lake elevation. Continuous, automated tracking of the lava level has been an important tool used by the U.S. Geological Survey&rsquo;s Hawaiian Volcano Observatory since 2012 in real-time operational monitoring of the volcano and its hazard potential.</p>","language":"English","publisher":"Springer","doi":"10.1186/s13617-016-0047-0","usgsCitation":"Patrick, M.R., Swanson, D., and Orr, T.R., 2016, Automated tracking of lava lake level using thermal images at Kīlauea Volcano, Hawai’i: Journal of Applied Volcanology, v. 5, no. 6, p. 1-7, https://doi.org/10.1186/s13617-016-0047-0.","productDescription":"7 p.","startPage":"1","endPage":"7","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-050599","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":471003,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/s13617-016-0047-0","text":"Publisher Index Page"},{"id":321172,"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              -155.29483795166016,\n              19.392448679313798\n            ],\n            [\n              -155.29483795166016,\n              19.43842814442463\n            ],\n            [\n              -155.2371597290039,\n              19.43842814442463\n            ],\n            [\n              -155.2371597290039,\n              19.392448679313798\n            ],\n            [\n              -155.29483795166016,\n              19.392448679313798\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"5","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2016-03-16","publicationStatus":"PW","scienceBaseUri":"57359b1be4b0dae0d5dee770","contributors":{"authors":[{"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":629188,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swanson, Don 0000-0002-1680-3591 donswan@usgs.gov","orcid":"https://orcid.org/0000-0002-1680-3591","contributorId":168817,"corporation":false,"usgs":true,"family":"Swanson","given":"Don","email":"donswan@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":629189,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Orr, Tim R. 0000-0003-1157-7588 torr@usgs.gov","orcid":"https://orcid.org/0000-0003-1157-7588","contributorId":149803,"corporation":false,"usgs":true,"family":"Orr","given":"Tim","email":"torr@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":629190,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70248087,"text":"70248087 - 2016 - Kīlauea Point National Wildlife Refuge comprehensive conservation plan","interactions":[],"lastModifiedDate":"2023-09-05T16:26:08.755328","indexId":"70248087","displayToPublicDate":"2016-05-01T11:12:47","publicationYear":"2016","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":16700,"text":"Comprehensive Conservation Plan","active":true,"publicationSubtype":{"id":1}},"displayTitle":"Kīlauea Point National Wildlife Refuge comprehensive conservation plan","title":"Kīlauea Point National Wildlife Refuge comprehensive conservation plan","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"US Fish and Wildlife Service","usgsCitation":"Cullinane Thomas, C., and Koontz, L., 2016, Kīlauea Point National Wildlife Refuge comprehensive conservation plan: Comprehensive Conservation Plan, 574 p.","productDescription":"574 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koontzl@usgs.gov","contributorId":2174,"corporation":false,"usgs":false,"family":"Koontz","given":"Lynne","email":"koontzl@usgs.gov","affiliations":[{"id":7016,"text":"Environmental Quality Division, National Park Service, Fort Collins, Colorado","active":true,"usgs":false}],"preferred":false,"id":881829,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70159958,"text":"70159958 - 2015 - Shifts in the eruptive styles at Stromboli in 2010–2014 revealed by ground-based InSAR data","interactions":[],"lastModifiedDate":"2015-12-04T16:11:07","indexId":"70159958","displayToPublicDate":"2015-09-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3358,"text":"Scientific Reports","active":true,"publicationSubtype":{"id":10}},"title":"Shifts in the eruptive styles at Stromboli in 2010–2014 revealed by ground-based InSAR data","docAbstract":"<p>Ground-Based Interferometric Synthetic Aperture Radar (GBInSAR) is an efficient technique for capturing short, subtle episodes of conduit pressurization in open vent volcanoes like Stromboli (Italy), because it can detect very shallow magma storage, which is difficult to identify using other methods. This technique allows the user to choose the optimal radar location for measuring the most significant deformation signal, provides an exceptional geometrical resolution, and allows for continuous monitoring of the deformation. Here, we present and model ground displacements collected at Stromboli by GBInSAR from January 2010 to August 2014. During this period, the volcano experienced several episodes of intense volcanic activity, culminated in the effusive flank eruption of August 2014. Modelling of the deformation allowed us to estimate a source depth of 482 &plusmn; 46 m a.s.l. The cumulative volume change was 4.7 &plusmn; 2.6 &times; 105 m3. The strain energy of the source was evaluated 3&ndash;5 times higher than the surface energy needed to open the 6&ndash;7 August eruptive fissure. The analysis proposed here can help forecast shifts in the eruptive style and especially the onset of flank eruptions at Stromboli and at similar volcanic systems (e.g. Etna, Piton de La Fournaise, Kilauea).</p>","language":"English","publisher":"Nature Publishing Group (NPG)","doi":"10.1038/srep13569","usgsCitation":"Di Traglia, F., Battaglia, M., Nolesini, T., Lagomarsino, D., and Casaglia, N., 2015, Shifts in the eruptive styles at Stromboli in 2010–2014 revealed by ground-based InSAR data: Scientific Reports, no. 5, 11 p., https://doi.org/10.1038/srep13569.","productDescription":"11 p.","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-064541","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":471838,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1038/srep13569","text":"Publisher Index Page"},{"id":311951,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":311915,"type":{"id":15,"text":"Index Page"},"url":"https://www.nature.com/articles/srep13569"}],"country":"Italy","otherGeospatial":"Stromboli","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              15.213661193847658,\n              38.81189098781871\n            ],\n            [\n              15.190315246582033,\n              38.79771102715645\n            ],\n            [\n              15.184478759765627,\n              38.790753788294424\n            ],\n            [\n              15.191688537597654,\n              38.7800490179011\n            ],\n            [\n              15.201988220214846,\n              38.77656962147866\n            ],\n            [\n              15.215721130371096,\n              38.77041335043523\n            ],\n            [\n              15.226364135742188,\n              38.77442837007637\n            ],\n            [\n              15.232543945312498,\n              38.78459874169886\n            ],\n            [\n              15.240097045898438,\n              38.79450007821985\n            ],\n            [\n              15.24421691894531,\n              38.80573776659133\n            ],\n            [\n              15.228080749511719,\n              38.812426025416734\n            ],\n            [\n              15.216751098632812,\n              38.81296105899589\n            ],\n            [\n              15.213661193847658,\n              38.81189098781871\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","issue":"5","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2015-09-01","publicationStatus":"PW","scienceBaseUri":"5662c759e4b06a3ea36c67cb","contributors":{"authors":[{"text":"Di Traglia, Federico","contributorId":150264,"corporation":false,"usgs":false,"family":"Di Traglia","given":"Federico","email":"","affiliations":[{"id":17947,"text":"Università di Firenze","active":true,"usgs":false}],"preferred":false,"id":581188,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Battaglia, Maurizio mbattaglia@usgs.gov","contributorId":139631,"corporation":false,"usgs":true,"family":"Battaglia","given":"Maurizio","email":"mbattaglia@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":581187,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nolesini, Teresa","contributorId":150265,"corporation":false,"usgs":false,"family":"Nolesini","given":"Teresa","email":"","affiliations":[{"id":17947,"text":"Università di Firenze","active":true,"usgs":false}],"preferred":false,"id":581189,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lagomarsino, Daniela","contributorId":150266,"corporation":false,"usgs":false,"family":"Lagomarsino","given":"Daniela","email":"","affiliations":[{"id":17947,"text":"Università di Firenze","active":true,"usgs":false}],"preferred":false,"id":581190,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Casaglia, Nicola","contributorId":150267,"corporation":false,"usgs":false,"family":"Casaglia","given":"Nicola","email":"","affiliations":[{"id":17947,"text":"Università di Firenze","active":true,"usgs":false}],"preferred":false,"id":581191,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70168969,"text":"70168969 - 2015 - Linking magma transport structures at Kīlauea volcano","interactions":[],"lastModifiedDate":"2016-03-10T09:40:01","indexId":"70168969","displayToPublicDate":"2015-09-01T00:00:00","publicationYear":"2015","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":"Linking magma transport structures at Kīlauea volcano","docAbstract":"<p>Identifying magma pathways is important for understanding and interpreting volcanic signals. At Kīlauea volcano, seismicity illuminates subsurface plumbing, but the broad spectrum of seismic phenomena hampers event identification. Discrete, long-period events (LPs) dominate the shallow (5-10 km) plumbing, and deep (40+ km) tremor has been observed offshore. However, our inability to routinely identify these events limits their utility in tracking ascending magma. Using envelope cross-correlation, we systematically catalog non-earthquake seismicity between 2008-2014. We find the LPs and deep tremor are spatially distinct, separated by the 15-25 km deep, horizontal mantle fault zone (MFZ). Our search corroborates previous observations, but we find broader-band (0.5-20 Hz) tremor comprising collocated earthquakes and reinterpret the deep tremor as earthquake swarms in a volume surrounding and responding to magma intruding from the mantle plume beneath the MFZ. We propose the overlying MFZ promotes lateral magma transport, linking this deep intrusion with Kīlauea&rsquo;s shallow magma plumbing.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2015GL064869","usgsCitation":"Wech, A.G., and Thelen, W.A., 2015, Linking magma transport structures at Kīlauea volcano: Geophysical Research Letters, v. 42, no. 17, p. 7090-7097, https://doi.org/10.1002/2015GL064869.","productDescription":"8 p.","startPage":"7090","endPage":"7097","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-064405","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":471822,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2015gl064869","text":"Publisher Index Page"},{"id":318771,"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              -155.3308868408203,\n              19.37010185290975\n            ],\n            [\n              -155.3308868408203,\n              19.456233596018\n            ],\n            [\n              -155.19973754882812,\n              19.456233596018\n            ],\n            [\n              -155.19973754882812,\n              19.37010185290975\n            ],\n            [\n              -155.3308868408203,\n              19.37010185290975\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"42","issue":"17","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2015-09-15","publicationStatus":"PW","scienceBaseUri":"56e2a8c8e4b0f59b85d3919c","contributors":{"authors":[{"text":"Wech, Aaron G. 0000-0003-4983-1991 awech@usgs.gov","orcid":"https://orcid.org/0000-0003-4983-1991","contributorId":5344,"corporation":false,"usgs":true,"family":"Wech","given":"Aaron","email":"awech@usgs.gov","middleInitial":"G.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":622419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thelen, Weston A. 0000-0003-2534-5577 wthelen@usgs.gov","orcid":"https://orcid.org/0000-0003-2534-5577","contributorId":4126,"corporation":false,"usgs":true,"family":"Thelen","given":"Weston","email":"wthelen@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":622420,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70115013,"text":"70115013 - 2015 - Primative components, crustal assimilation, and magmatic degassing of the 2008 Kilauea summit eruption","interactions":[],"lastModifiedDate":"2015-11-16T16:11:12","indexId":"70115013","displayToPublicDate":"2015-07-02T14:09:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Primative components, crustal assimilation, and magmatic degassing of the 2008 Kilauea summit eruption","docAbstract":"<p>Simultaneous summit and rift zone eruptions at Kīlauea starting in 2008 reflect a shallow eruptive plumbing system inundated by a bourgeoning supply of new magma from depth. Olivine-hosted melt inclusions, host glass, and bulk lava compositions of magma erupted at both the summit and east rift zone demonstrate chemical continuity at both ends of a well-worn summit-to-rift pipeline. Analysis of glass within dense-cored lapilli erupted from the summit in March &ndash; August 2008 show these are not samplings of compositionally distinct magmas stored in the shallow summit magma reservoir, but instead result from remelting and assimilation of fragments from conduit wall and vent blocks. Summit pyroclasts show the predominant and most primitive component erupted to be a homogenous, relatively trace-element-depleted melt that is a compositionally indistinguishable from east rift lava. Based on a &ldquo;top-down&rdquo; model for the geochemical variation in east rift zone lava over the past 30 years, we suggest that the apparent absence of a 1982 enriched component in melt inclusions, as well as the proposed summit-rift zone connectivity based on sulfur and mineral chemistry, indicate that the last of the pre-1983 magma has been flushed out of the summit reservoir during the surge of mantle-derived magma from 2003-2007.</p>","largerWorkTitle":"Hawaiian volcanoes, from source to surface","language":"English","publisher":"American Geophysical Union","usgsCitation":"Rowe, M.C., Thornber, C.R., and Orr, T., 2015, Primative components, crustal assimilation, and magmatic degassing of the 2008 Kilauea summit eruption, chap. <i>of</i> Hawaiian volcanoes, from source to surface, p. 439-457.","productDescription":"18 p.","startPage":"439","endPage":"457","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-057405","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":311401,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kīlauea volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.2756118774414,\n              19.43162918399349\n            ],\n            [\n              -155.25157928466797,\n              19.425153718960157\n            ],\n            [\n              -155.23990631103513,\n              19.413821034154534\n            ],\n            [\n              -155.2639389038086,\n              19.40443049681278\n            ],\n            [\n              -155.2910614013672,\n              19.399896939902558\n            ],\n            [\n              -155.29483795166016,\n              19.409935360334085\n            ],\n            [\n              -155.28350830078125,\n              19.427743935948932\n            ],\n            [\n              -155.2756118774414,\n              19.43162918399349\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"564b0c57e4b0ebfbef0d3179","contributors":{"authors":[{"text":"Rowe, Michael C.","contributorId":79191,"corporation":false,"usgs":true,"family":"Rowe","given":"Michael","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":519011,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thornber, Carl R. cthornber@usgs.gov","contributorId":2016,"corporation":false,"usgs":true,"family":"Thornber","given":"Carl","email":"cthornber@usgs.gov","middleInitial":"R.","affiliations":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":519009,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Orr, Tim R. torr@usgs.gov","contributorId":3766,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","email":"torr@usgs.gov","affiliations":[],"preferred":false,"id":519010,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70160104,"text":"70160104 - 2015 - Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13","interactions":[],"lastModifiedDate":"2017-04-19T13:45:07","indexId":"70160104","displayToPublicDate":"2015-03-01T16:45:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5371,"text":"Geophysical Monograph","active":true,"publicationSubtype":{"id":24}},"chapter":"13","title":"Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13","docAbstract":"<p>Eleven slow slip events (SSEs) have occurred on the southern flank of Kilauea Volcano, Hawai&rsquo;i, since 1997 through 2014. We analyze this series of SSEs in the context of Kilauea&rsquo;s magma system to assess whether or not there are interactions between these tectonic events and eruptive/intrusive activity. Over time, SSEs have increased in magnitude and become more regular, with interevent times averaging 2.44 &plusmn; 0.15 years since 2003. Two notable SSEs that impacted both the flank and the magmatic system occurred in 2007, when an intrusion and small eruption on the East Rift Zone were part of a feedback with a SSE and 2012, when slow slip induced 2.5 cm of East Rift Zone opening (but without any change in eruptive activity). A summit inflation event and surge in East Rift Zone lava effusion was associated with a SSE in 2005, but the inferred triggering relation is not clear due to a poorly constrained slip onset time. Our results demonstrate that slow slip along Kilauea&rsquo;s d&eacute;collement has the potential to trigger and be triggered by activity within the volcano&rsquo;s magma system. Since only three of the SSEs have been associated with changes in magmatic activity within the summit and rift zones, both the d&eacute;collement and magma system must be close to failure for triggering to occur.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Hawaiian volcanoes: From source to surface","largerWorkSubtype":{"id":15,"text":"Monograph"},"conferenceTitle":"AGU Chapman Conference","conferenceDate":"August 20-24, 2012","conferenceLocation":"Waikoloa, Hawai'i","language":"English","publisher":"American Geophysical Union; John Wiley & Sons","publisherLocation":"Washington, D.C.","doi":"10.1002/9781118872079.ch13","isbn":"978-1-118-87204-8","usgsCitation":"Montgomery-Brown, E., Poland, M.P., and Miklius, A., 2015, Delicate balance of magmatic-tectonic interaction at Kilauea Volcano, Hawai`i, revealed from slow slip events: Chapter 13, chap. 13 <i>of</i> Hawaiian volcanoes: From source to surface: Geophysical Monograph, v. 208, p. 269-288, https://doi.org/10.1002/9781118872079.ch13.","productDescription":"20 p.","startPage":"269","endPage":"288","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-051769","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":312206,"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              -155.2566432952881,\n              19.427986766674284\n            ],\n            [\n              -155.24333953857422,\n              19.416816177675052\n            ],\n            [\n              -155.24042129516602,\n              19.41139249889879\n            ],\n    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Valerie","contributorId":121509,"corporation":false,"usgs":false,"family":"Cayol","given":"Valerie","email":"","affiliations":[],"preferred":false,"id":692137,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":127857,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":692138,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Weis, Dominique","contributorId":121531,"corporation":false,"usgs":true,"family":"Weis","given":"Dominique","affiliations":[],"preferred":false,"id":692139,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Montgomery-Brown, Emily emontgomery-brown@usgs.gov","contributorId":150500,"corporation":false,"usgs":true,"family":"Montgomery-Brown","given":"Emily","email":"emontgomery-brown@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":581907,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":146118,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":581908,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miklius, Asta 0000-0002-2286-1886 asta@usgs.gov","orcid":"https://orcid.org/0000-0002-2286-1886","contributorId":2060,"corporation":false,"usgs":true,"family":"Miklius","given":"Asta","email":"asta@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":581909,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70136288,"text":"70136288 - 2015 - Two magma bodies beneath the summit of Kilauea Volcano unveiled by isotopically distinct melt deliveries from the mantle","interactions":[],"lastModifiedDate":"2016-07-11T13:52:03","indexId":"70136288","displayToPublicDate":"2015-03-01T00:00:00","publicationYear":"2015","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":"Two magma bodies beneath the summit of Kilauea Volcano unveiled by isotopically distinct melt deliveries from the mantle","docAbstract":"<p><span>The summit magma storage reservoir of Kīlauea Volcano is one of the most important components of the magmatic plumbing system of this frequently active basaltic shield-building volcano. Here we use new high-precision Pb isotopic analyses of Kīlauea summit lavas&mdash;from 1959 to the active Halema&lsquo;uma&lsquo;u lava lake&mdash;to infer the number, size, and interconnectedness of magma bodies within the volcano's summit reservoir. From 1971 to 1982, the&nbsp;</span><sup>206</sup><span>Pb/</span><sup>204</sup><span>Pb ratios of the lavas define two separate magma mixing trends that correlate with differences in vent location and/or pre-eruptive magma temperature. These relationships, which contrast with a single magma mixing trend for lavas from 1959 to 1968, indicate that Kīlauea summit eruptions since at least 1971 were supplied from two distinct magma bodies. The locations of these magma bodies are inferred to coincide with two major deformation centers identified by geodetic monitoring of the volcano's summit region: (1) the main locus of the summit reservoir &sim;2&ndash;4 km below the southern rim of Kīlauea Caldera and (2) a shallower magma body &lt;2 km below the eastern rim of Halema&lsquo;uma&lsquo;u pit crater. Residence time modeling suggests that the total volume of magma within Kīlauea's summit reservoir during the late 20th century (1959&ndash;1982) was exceedingly small (&sim;0.1&ndash;0.5 km</span><sup>3</sup><span>). Voluminous Kīlauea eruptions, such as the ongoing, 32-yr old Pu&lsquo;u &lsquo;Ō&lsquo;ō rift eruption (&gt;4 km</span><sup>3</sup><span>&nbsp;of lava erupted), must therefore be sustained by a nearly continuous supply of new melt from the mantle. The model results show that a minimum of four compositionally distinct, mantle-derived magma batches were delivered to the volcano (at least three directly to the summit reservoir) since 1959. These melt inputs correlate with the initiation of energetic (1959 Kīlauea Iki) and/or sustained (1969&ndash;1974 Mauna Ulu, 1983-present Pu&lsquo;u &lsquo;Ō&lsquo;ō and 2008-present Halema&lsquo;uma&lsquo;u) eruptions. Thus, Kīlauea's eruptive behavior is partly tied to the delivery of new magma batches from the volcano's source region within the Hawaiian mantle plume.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2014.12.040","usgsCitation":"Pietruszka, A.J., Heaton, D.E., Marske, J.P., and Garcia, M.O., 2015, Two magma bodies beneath the summit of Kilauea Volcano unveiled by isotopically distinct melt deliveries from the mantle: Earth and Planetary Science Letters, v. 413, p. 90-100, https://doi.org/10.1016/j.epsl.2014.12.040.","productDescription":"11 p.","startPage":"90","endPage":"100","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-053879","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":325028,"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              -155.20042419433594,\n              19.344188652729514\n            ],\n            [\n              -155.20042419433594,\n              19.38451428768728\n            ],\n            [\n              -155.12231826782227,\n              19.38451428768728\n            ],\n            [\n              -155.12231826782227,\n              19.344188652729514\n            ],\n            [\n              -155.20042419433594,\n              19.344188652729514\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"413","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5784c346e4b0e02680be59f6","contributors":{"authors":[{"text":"Pietruszka, Aaron J. 0000-0002-2826-9509 apietruszka@usgs.gov","orcid":"https://orcid.org/0000-0002-2826-9509","contributorId":4552,"corporation":false,"usgs":true,"family":"Pietruszka","given":"Aaron","email":"apietruszka@usgs.gov","middleInitial":"J.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":537306,"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":642121,"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":642122,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Garcia, Michael O.","contributorId":51636,"corporation":false,"usgs":true,"family":"Garcia","given":"Michael","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":642123,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70142199,"text":"70142199 - 2015 - Steep spatial gradients of volcanic and marine sulfur in Hawaiian rainfall and ecosystems","interactions":[],"lastModifiedDate":"2015-03-04T09:54:57","indexId":"70142199","displayToPublicDate":"2015-02-07T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Steep spatial gradients of volcanic and marine sulfur in Hawaiian rainfall and ecosystems","docAbstract":"<p><span>Sulfur, a nutrient required by terrestrial ecosystems, is likely to be regulated by atmospheric processes in well-drained, upland settings because of its low concentration in most bedrock and generally poor retention by inorganic reactions within soils. Environmental controls on sulfur sources in unpolluted ecosystems have seldom been investigated in detail, even though the possibility of sulfur limiting primary production is much greater where atmospheric deposition of anthropogenic sulfur is low. Here we measure sulfur isotopic compositions of soils, vegetation and bulk atmospheric deposition from the Hawaiian Islands for the purpose of tracing sources of ecosystem sulfur. Hawaiian lava has a mantle-derived sulfur isotopic composition (&delta;</span><sup>34</sup><span>S VCDT) of &minus;&nbsp;0.8&permil;. Bulk deposition on the island of Maui had a &delta;</span><sup>34</sup><span>S VCDT that varied temporally, spanned a range from +&nbsp;8.2 to +&nbsp;19.7&permil;, and reflected isotopic mixing from three sources: sea-salt (+&nbsp;21.1&permil;), marine biogenic emissions (+&nbsp;15.6&permil;), and volcanic emissions from active vents on Kilauea Volcano (+&nbsp;0.8&permil;). A straightforward, weathering-driven transition in ecosystem sulfur sources could be interpreted in the shift from relatively low (0.0 to +&nbsp;2.7&permil;) to relatively high (+&nbsp;17.8 to +&nbsp;19.3&permil;) soil &delta;</span><sup>34</sup><span>S values along a 0.3 to 4100&nbsp;ka soil age-gradient, and similar patterns in associated vegetation. However, sub-kilometer scale spatial variation in soil sulfur isotopic composition was found along soil transects assumed by age and mass balance to be dominated by atmospheric sulfur inputs. Soil sulfur isotopic compositions ranged from +&nbsp;8.1 to +&nbsp;20.3&permil; and generally decreased with increasing elevation (0&ndash;2000&nbsp;m), distance from the coast (0&ndash;12&nbsp;km), and annual rainfall (180&ndash;5000&nbsp;mm). Such trends reflect the spatial variation in marine versus volcanic inputs from atmospheric deposition. Broadly, these results illustrate how the sources and magnitude of atmospheric deposition can exert controls over ecosystem sulfur biogeochemistry across relatively small spatial scales.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.scitotenv.2015.02.001","usgsCitation":"Bern, C., Chadwick, O.A., Kendall, C., and Pribil, M.J., 2015, Steep spatial gradients of volcanic and marine sulfur in Hawaiian rainfall and ecosystems: Science of the Total Environment, v. 514, p. 250-260, https://doi.org/10.1016/j.scitotenv.2015.02.001.","productDescription":"11 p.","startPage":"250","endPage":"260","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-059624","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":472284,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://escholarship.org/uc/item/4f7889p8","text":"External Repository"},{"id":298239,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -159.906005859375,\n              18.843913201134132\n            ],\n            [\n              -159.906005859375,\n              22.29926149974121\n            ],\n            [\n              -154.70947265625,\n              22.29926149974121\n            ],\n            [\n              -154.70947265625,\n              18.843913201134132\n            ],\n            [\n              -159.906005859375,\n              18.843913201134132\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"514","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54f6e948e4b02419550d30a7","contributors":{"authors":[{"text":"Bern, Carleton R. cbern@usgs.gov","contributorId":127601,"corporation":false,"usgs":true,"family":"Bern","given":"Carleton R.","email":"cbern@usgs.gov","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":false,"id":541713,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chadwick, Oliver A.","contributorId":88244,"corporation":false,"usgs":false,"family":"Chadwick","given":"Oliver","email":"","middleInitial":"A.","affiliations":[{"id":6710,"text":"University of California, Santa Barbara, CA","active":true,"usgs":false}],"preferred":false,"id":541714,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":541715,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pribil, Michael J. mpribil@usgs.gov","contributorId":2027,"corporation":false,"usgs":true,"family":"Pribil","given":"Michael","email":"mpribil@usgs.gov","middleInitial":"J.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":541716,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70113377,"text":"70113377 - 2015 - Kilauea's 5-9 March 2011 Kamoamoa fissure eruption and its relation to 30+ years of activity from Pu'u 'Ō'ō","interactions":[],"lastModifiedDate":"2022-12-08T14:31:35.712261","indexId":"70113377","displayToPublicDate":"2015-01-01T10:54:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5371,"text":"Geophysical Monograph","active":true,"publicationSubtype":{"id":24}},"chapter":"18","title":"Kilauea's 5-9 March 2011 Kamoamoa fissure eruption and its relation to 30+ years of activity from Pu'u 'Ō'ō","docAbstract":"<div><div id=\"abstract\"><div class=\"para\"><p>Lava output from Kīlauea's long-lived East Rift Zone eruption, ongoing since 1983, began waning in 2010 and was coupled with uplift, increased seismicity, and rising lava levels at the volcano's summit and Pu‘u ‘Ō‘ō vent. These changes culminated in the four-day-long Kamoamoa fissure eruption on the East Rift Zone starting on 5 March 2011. About 2.7 × 10<sup>6</sup> m<sup>3</sup> of lava erupted, accompanied by ˜15 cm of summit subsidence, draining of Kīlauea's summit lava lake, a 113 m drop of Pu‘u ‘Ō‘ō's crater floor, ˜3 m of East Rift Zone widening, and eruptive SO<sub>2</sub> emissions averaging 8500 tonnes/day. Lava effusion resumed at Pu‘u ‘Ō‘ō shortly after the Kamoamoa eruption ended, marking the onset of a new period of East Rift Zone activity. Multiparameter monitoring before and during the Kamoamoa eruption suggests that it was driven by an imbalance between magma supplied to and erupted from Kīlauea's East Rift Zone and that eruptive output is affected by changes in the geometry of the rift zone plumbing system. These results imply that intrusions and eruptive changes during ongoing activity at Kīlauea may be anticipated from the geophysical, geological, and geochemical manifestations of magma supply and magma plumbing system geometry.</p></div></div></div>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Hawaiian volcanoes: From source to surface","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"AGU Chapman Conference","conferenceDate":"August 20-24, 2012","conferenceLocation":"Waikoloa, Hawai'i","language":"English","publisher":"American Geophysical Union; John Wiley & Sons","publisherLocation":"Washington, D.C.","doi":"10.1002/9781118872079.ch18","usgsCitation":"Orr, T., Poland, M., Patrick, M.R., Thelen, W.A., Sutton, A., Elias, T., Thornber, C.R., Parcheta, C., and Wooten, K.M., 2015, Kilauea's 5-9 March 2011 Kamoamoa fissure eruption and its relation to 30+ years of activity from Pu'u 'Ō'ō, chap. 18 <i>of</i> Hawaiian volcanoes: From source to surface: Geophysical Monograph, v. 208, p. 393-420, https://doi.org/10.1002/9781118872079.ch18.","productDescription":"28 p.","startPage":"393","endPage":"420","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-049328","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":298379,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kīlauea, Puʻu ʻŌʻō","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.3748321533203,\n              19.253460076908322\n            ],\n            [\n              -155.3748321533203,\n              19.454291278067455\n            ],\n            [\n              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mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":127857,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":692149,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Weis, Dominique","contributorId":121531,"corporation":false,"usgs":true,"family":"Weis","given":"Dominique","affiliations":[],"preferred":false,"id":692150,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Orr, Tim R. torr@usgs.gov","contributorId":3766,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","email":"torr@usgs.gov","affiliations":[],"preferred":false,"id":518969,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poland, Michael P. 0000-0001-5240-6123 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,{"id":70155189,"text":"70155189 - 2015 - A sinuous tumulus over an active lava tube at Kīlauea Volcano: evolution, analogs, and hazard forecasts","interactions":[],"lastModifiedDate":"2015-07-31T13:30:02","indexId":"70155189","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","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":"A sinuous tumulus over an active lava tube at Kīlauea Volcano: evolution, analogs, and hazard forecasts","docAbstract":"<p><span>Inflation of narrow tube-fed basaltic lava flows (tens of meters across), such as those confined by topography, can be focused predominantly along the roof of a lava tube. This can lead to the development of an unusually long tumulus, its shape matching the sinuosity of the underlying lava tube. Such a situation occurred during Kīlauea Volcano's (Hawai'i, USA) ongoing East Rift Zone eruption on a lava tube active from July through November 2010. Short-lived breakouts from the tube buried the flanks of the sinuous, ridge-like tumulus, while the tumulus crest, its surface composed of lava formed very early in the flow's emplacement history, remained poised above the surrounding younger flows. At least several of these breakouts resulted in irrecoverable uplift of the tube roof. Confined sections of the prehistoric Carrizozo and McCartys flows (New Mexico, USA) display similar sinuous, ridge-like features with comparable surface age relationships. We contend that these distinct features formed in a fashion equivalent to that of the sinuous tumulus that formed at Kīlauea in 2010. Moreover, these sinuous tumuli may be analogs for some sinuous ridges evident in orbital images of the Tharsis volcanic province on Mars. The short-lived breakouts from the sinuous tumulus at Kīlauea were caused by surges in discharge through the lava tube, in response to cycles of deflation and inflation (DI events) at Kīlauea's summit. The correlation between DI events and subsequent breakouts aided in lava flow forecasting. Breakouts from the sinuous tumulus advanced repeatedly toward the sparsely populated Kalapana Gardens subdivision, destroying two homes and threatening others. Hazard assessments, including flow occurrence and advance forecasts, were relayed regularly to the Hawai'i County Civil Defense to aid their lava flow hazard mitigation efforts while this lava tube was active.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jvolgeores.2014.12.002","usgsCitation":"Orr, T., Bleacher, J.E., Patrick, M.R., and Wooten, K.M., 2015, A sinuous tumulus over an active lava tube at Kīlauea Volcano: evolution, analogs, and hazard forecasts: Journal of Volcanology and Geothermal Research, v. 291, p. 35-48, https://doi.org/10.1016/j.jvolgeores.2014.12.002.","productDescription":"14 p.","startPage":"35","endPage":"48","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-066883","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":306297,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55bc9c28e4b033ef52100f13","contributors":{"authors":[{"text":"Orr, Tim R. torr@usgs.gov","contributorId":140376,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","email":"torr@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":565026,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bleacher, Jacob E.","contributorId":145705,"corporation":false,"usgs":false,"family":"Bleacher","given":"Jacob","email":"","middleInitial":"E.","affiliations":[{"id":7049,"text":"NASA Goddard Space Flight Center","active":true,"usgs":false}],"preferred":false,"id":565027,"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":565028,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wooten, Kelly M.","contributorId":145706,"corporation":false,"usgs":false,"family":"Wooten","given":"Kelly","email":"","middleInitial":"M.","affiliations":[{"id":16203,"text":"Michigan Technological university","active":true,"usgs":false}],"preferred":false,"id":565029,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70108458,"text":"70108458 - 2015 - Understanding heat and groundwater flow through continental flood basalt provinces: insights gained from alternative models of permeability/depth relationships for the Columbia Plateau, USA","interactions":[],"lastModifiedDate":"2019-07-22T12:54:07","indexId":"70108458","displayToPublicDate":"2014-09-19T14:32:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1765,"text":"Geofluids","active":true,"publicationSubtype":{"id":10}},"title":"Understanding heat and groundwater flow through continental flood basalt provinces: insights gained from alternative models of permeability/depth relationships for the Columbia Plateau, USA","docAbstract":"<p>Heat-flow mapping of the western USA has identified an apparent low-heat-flow anomaly coincident with the Columbia Plateau Regional Aquifer System, a thick sequence of basalt aquifers within the Columbia River Basalt Group (CRBG). A heat and mass transport model (SUTRA) was used to evaluate the potential impact of groundwater flow on heat flow along two different regional groundwater flow paths. Limited in situ permeability (k) data from the CRBG are compatible with a steep permeability decrease (approximately 3.5 orders of magnitude) at 600&ndash;900 m depth and approximately 40&deg;C. Numerical simulations incorporating this permeability decrease demonstrate that regional groundwater flow can explain lower-than-expected heat flow in these highly anisotropic (k<sub>x</sub>/k<sub>z</sub> ~ 10<sup>4</sup>) continental flood basalts. Simulation results indicate that the abrupt reduction in permeability at approximately 600 m depth results in an equivalently abrupt transition from a shallow region where heat flow is affected by groundwater flow to a deeper region of conduction-dominated heat flow. Most existing heat-flow measurements within the CRBG are from shallower than 600 m depth or near regional groundwater discharge zones, so that heat-flow maps generated using these data are likely influenced by groundwater flow. Substantial k decreases at similar temperatures have also been observed in the volcanic rocks of the adjacent Cascade Range volcanic arc and at Kilauea Volcano, Hawaii, where they result from low-temperature hydrothermal alteration.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geofluids","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1111/gfl.12095","usgsCitation":"Burns, E., Williams, C.F., Ingebritsen, S.E., Voss, C.I., Spane, F.A., and DeAngelo, J., 2015, Understanding heat and groundwater flow through continental flood basalt provinces: insights gained from alternative models of permeability/depth relationships for the Columbia Plateau, USA: Geofluids, v. 15, no. 1-2, p. 120-138, https://doi.org/10.1111/gfl.12095.","productDescription":"19 p.","startPage":"120","endPage":"138","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-053358","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":472466,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/gfl.12095","text":"Publisher Index Page"},{"id":294238,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":294237,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/gfl.12095"},{"id":294239,"type":{"id":15,"text":"Index Page"},"url":"https://onlinelibrary.wiley.com/doi/10.1111/gfl.12095/abstract"}],"country":"United States","state":"Idaho;Oregon;Washington","otherGeospatial":"Columbia River Plateau","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122,44.5 ], [ -122,48.5 ], [ -116.5,48.5 ], [ -116.5,44.5 ], [ -122,44.5 ] ] ] } } ] }","volume":"15","issue":"1-2","noUsgsAuthors":false,"publicationDate":"2014-09-19","publicationStatus":"PW","scienceBaseUri":"541d3790e4b0f68901ebd9d4","contributors":{"authors":[{"text":"Burns, Erick R. 0000-0002-1747-0506","orcid":"https://orcid.org/0000-0002-1747-0506","contributorId":84802,"corporation":false,"usgs":true,"family":"Burns","given":"Erick R.","affiliations":[{"id":310,"text":"Geology, Minerals, Energy and Geophysics Science Center","active":false,"usgs":true}],"preferred":false,"id":494028,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, Colin F. 0000-0003-2196-5496 colin@usgs.gov","orcid":"https://orcid.org/0000-0003-2196-5496","contributorId":274,"corporation":false,"usgs":true,"family":"Williams","given":"Colin","email":"colin@usgs.gov","middleInitial":"F.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":494023,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ingebritsen, Steven E. 0000-0001-6917-9369 seingebr@usgs.gov","orcid":"https://orcid.org/0000-0001-6917-9369","contributorId":818,"corporation":false,"usgs":true,"family":"Ingebritsen","given":"Steven","email":"seingebr@usgs.gov","middleInitial":"E.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":494024,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":494025,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Spane, Frank A.","contributorId":38910,"corporation":false,"usgs":true,"family":"Spane","given":"Frank","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":494027,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"DeAngelo, Jacob jdeangelo@usgs.gov","contributorId":2376,"corporation":false,"usgs":true,"family":"DeAngelo","given":"Jacob","email":"jdeangelo@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":494026,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70146876,"text":"70146876 - 2014 - Continuous monitoring of Hawaiian volcanoes with thermal cameras","interactions":[],"lastModifiedDate":"2019-03-13T09:22:17","indexId":"70146876","displayToPublicDate":"2015-04-23T11:15:00","publicationYear":"2014","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":"Continuous monitoring of Hawaiian volcanoes with thermal cameras","docAbstract":"<p><span>Continuously operating thermal cameras are becoming more common around the world for volcano monitoring, and offer distinct advantages over conventional visual webcams for observing volcanic activity. Thermal cameras can sometimes &ldquo;see&rdquo; through volcanic fume that obscures views to visual webcams and the naked eye, and often provide a much clearer view of the extent of high temperature areas and activity levels. We describe a thermal camera network recently installed by the Hawaiian Volcano Observatory to monitor Kīlauea&rsquo;s summit and east rift zone eruptions (at Halema&lsquo;uma&lsquo;u and Pu&lsquo;u &lsquo;Ō&lsquo;ō craters, respectively) and to keep watch on Mauna Loa&rsquo;s summit caldera. The cameras are long-wave, temperature-calibrated models protected in custom enclosures, and often positioned on crater rims close to active vents. Images are transmitted back to the observatory in real-time, and numerous Matlab scripts manage the data and provide automated analyses and alarms. The cameras have greatly improved HVO&rsquo;s observations of surface eruptive activity, which includes highly dynamic lava lake activity at Halema&lsquo;uma&lsquo;u, major disruptions to Pu&lsquo;u &lsquo;Ō&lsquo;ō crater and several fissure eruptions.</span></p>","language":"English","publisher":"Springer","doi":"10.1186/2191-5040-3-1","usgsCitation":"Patrick, M.R., Orr, T., Antolik, L., Lee, R., and Kamibayashi, K.P., 2014, Continuous monitoring of Hawaiian volcanoes with thermal cameras: Journal of Applied Volcanology, v. 3, no. 1, 19 p., https://doi.org/10.1186/2191-5040-3-1.","productDescription":"19 p.","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-049889","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":472513,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/2191-5040-3-1","text":"Publisher Index Page"},{"id":299837,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea volcano, Mauna Loa volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.61206817626953,\n              19.44134189745715\n            ],\n            [\n              -155.61206817626953,\n              19.49701689695543\n            ],\n            [\n              -155.57052612304688,\n              19.49701689695543\n            ],\n            [\n              -155.57052612304688,\n              19.44134189745715\n            ],\n            [\n              -155.61206817626953,\n              19.44134189745715\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.29552459716797,\n              19.395687095370263\n            ],\n            [\n              -155.29552459716797,\n              19.43227671629882\n            ],\n            [\n              -155.24127960205078,\n              19.43227671629882\n            ],\n            [\n              -155.24127960205078,\n              19.395687095370263\n            ],\n            [\n              -155.29552459716797,\n              19.395687095370263\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"3","issue":"1","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2014-01-21","publicationStatus":"PW","scienceBaseUri":"553a09b3e4b0c1efddaed133","contributors":{"authors":[{"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":545430,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orr, Tim R. torr@usgs.gov","contributorId":140376,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","email":"torr@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":545431,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Antolik, Loren lantolik@usgs.gov","contributorId":4144,"corporation":false,"usgs":true,"family":"Antolik","given":"Loren","email":"lantolik@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":545432,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lee, Robert Lopaka rclee@usgs.gov","contributorId":1984,"corporation":false,"usgs":true,"family":"Lee","given":"Robert Lopaka","email":"rclee@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":545433,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kamibayashi, Kevan P. kevank@usgs.gov","contributorId":5184,"corporation":false,"usgs":true,"family":"Kamibayashi","given":"Kevan","email":"kevank@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":545434,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70170830,"text":"70170830 - 2014 - The 2010 slow slip event and secular motion at Kilauea, Hawai`i inferred from TerraSAR-X InSAR data","interactions":[],"lastModifiedDate":"2019-03-04T12:23:32","indexId":"70170830","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"The 2010 slow slip event and secular motion at Kilauea, Hawai`i inferred from TerraSAR-X InSAR data","docAbstract":"<p>We present here an Small BAseline Subset (SBAS) algorithm to extract both transient and secular ground deformations on the order of millimeters in the presence of tropospheric noise on the order of centimeters, when the transient is of short duration and known time, and the background deformation is smooth in time. We applied this algorithm to study the 2010 slow slip event as well as the secular motion of Kīlauea's south flank using 49 TerraSAR-X images. We also estimate the tropospheric delay variation relative to a given reference pixel using an InSAR SBAS approach. We compare the InSAR SBAS solution for both ground deformation and tropospheric delays with existing GPS measurements and confirm that the ground deformation signal andtropospheric noise in InSAR data are successfully separated. We observe that the coastal region on the south side of the Hilina Pali moves at a higher background rate than the region north side of the Pali. We also conclude that the 2010 SSE displacement is mainly horizontal and the maximum magnitude of the 2010 SSE vertical component is less than 5 mm.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2014JB011156","usgsCitation":"Chen, J., Zebker, H.A., Segall, P., and Miklius, A., 2014, The 2010 slow slip event and secular motion at Kilauea, Hawai`i inferred from TerraSAR-X InSAR data: Journal of Geophysical Research B: Solid Earth, v. 119, no. 8, p. 6667-6683, https://doi.org/10.1002/2014JB011156.","productDescription":"17 p.","startPage":"6667","endPage":"6683","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-054026","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":472553,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2014jb011156","text":"Publisher Index Page"},{"id":320945,"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        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.31646728515625,\n              19.236280796124486\n            ],\n            [\n              -155.31646728515625,\n              19.3134113831997\n            ],\n            [\n              -155.2199935913086,\n              19.3134113831997\n            ],\n            [\n              -155.2199935913086,\n              19.236280796124486\n            ],\n            [\n              -155.31646728515625,\n              19.236280796124486\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"119","issue":"8","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2014-08-20","publicationStatus":"PW","scienceBaseUri":"572b1d3be4b0b13d391b4508","contributors":{"authors":[{"text":"Chen, Jingyi","contributorId":169127,"corporation":false,"usgs":false,"family":"Chen","given":"Jingyi","email":"","affiliations":[{"id":6986,"text":"Stanford University","active":true,"usgs":false}],"preferred":false,"id":628591,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zebker, Howard A.","contributorId":80401,"corporation":false,"usgs":true,"family":"Zebker","given":"Howard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":628592,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Segall, Paul","contributorId":75942,"corporation":false,"usgs":true,"family":"Segall","given":"Paul","affiliations":[],"preferred":false,"id":628593,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Miklius, Asta 0000-0002-2286-1886 asta@usgs.gov","orcid":"https://orcid.org/0000-0002-2286-1886","contributorId":2060,"corporation":false,"usgs":true,"family":"Miklius","given":"Asta","email":"asta@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":628590,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70131497,"text":"70131497 - 2014 - Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012","interactions":[],"lastModifiedDate":"2019-02-25T13:28:32","indexId":"70131497","displayToPublicDate":"2014-12-03T14:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2312,"text":"Journal of Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012","docAbstract":"<p>Analysis of microgravity and surface displacement data collected at the summit of Kīlauea Volcano, Hawaii (USA), between December 2009 and November 2012 suggests a net mass accumulation at ~1.5&thinsp;km depth beneath the northeast margin of Halema&lsquo;uma&lsquo;u Crater, within Kīlauea Caldera. Although residual gravity increases and decreases are accompanied by periods of uplift and subsidence of the surface, respectively, the volume change inferred from the modeling of interferometric synthetic aperture radar deformation data can account for only a small portion (as low as 8%) of the mass addition responsible for the gravity increase. We propose that since the opening of a new eruptive vent at the summit of Kīlauea in 2008, magma rising to the surface of the lava lake outgasses, becomes denser, and sinks to deeper levels, replacing less dense gas-rich magma stored in the Halema&lsquo;uma&lsquo;u magma reservoir. In fact, a relatively small density increase (&lt;200&thinsp;kg&thinsp;m<sup>&minus;3</sup>) of a portion of the reservoir can produce the positive residual gravity change measured during the period with the largest mass increase, between March 2011 and November 2012. Other mechanisms may also play a role in the gravity increase without producing significant uplift of the surface, including compressibility of magma, formation of olivine cumulates, and filling of void space by magma. The rate of gravity increase, higher than during previous decades, varies through time and seems to be directly correlated with the volcanic activity occurring at both the summit and the east rift zone of the volcano.</p>","language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1002/2014JB011506","usgsCitation":"Bagnardi, M., Poland, M., Carbone, D., Baker, S., Battaglia, M., and Amelung, F., 2014, Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012: Journal of Geophysical Research, v. 119, no. 9, p. 7288-7305, https://doi.org/10.1002/2014JB011506.","productDescription":"18 p.","startPage":"7288","endPage":"7305","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-052892","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":472589,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2014jb011506","text":"Publisher Index Page"},{"id":296418,"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        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.29449462890622,\n              19.43616185591159\n            ],\n            [\n              -155.2333831787109,\n              19.439399401246273\n            ],\n            [\n              -155.2333831787109,\n              19.406373411096297\n            ],\n            [\n              -155.291748046875,\n              19.40443049681278\n            ],\n            [\n              -155.29449462890622,\n              19.43616185591159\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"119","issue":"9","noUsgsAuthors":false,"publicationDate":"2014-09-12","publicationStatus":"PW","scienceBaseUri":"54802619e4b0ac64d148dcd0","contributors":{"authors":[{"text":"Bagnardi, Marco","contributorId":124560,"corporation":false,"usgs":false,"family":"Bagnardi","given":"Marco","affiliations":[{"id":5112,"text":"University of Miami","active":true,"usgs":false}],"preferred":false,"id":521307,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":635,"corporation":false,"usgs":true,"family":"Poland","given":"Michael P.","email":"mpoland@usgs.gov","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":521306,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":521308,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Baker, Scott","contributorId":124562,"corporation":false,"usgs":false,"family":"Baker","given":"Scott","email":"","affiliations":[{"id":5114,"text":"UNAVCO","active":true,"usgs":false}],"preferred":false,"id":521309,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Battaglia, Maurizio mbattaglia@usgs.gov","contributorId":2526,"corporation":false,"usgs":true,"family":"Battaglia","given":"Maurizio","email":"mbattaglia@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":521310,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Amelung, Falk","contributorId":124563,"corporation":false,"usgs":false,"family":"Amelung","given":"Falk","email":"","affiliations":[{"id":5112,"text":"University of Miami","active":true,"usgs":false}],"preferred":false,"id":521311,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
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