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,{"id":31559,"text":"ofr01367 - 2001 - Volcano-hazard zonation for San Vicente volcano, El Salvador","interactions":[],"lastModifiedDate":"2013-11-22T13:22:28","indexId":"ofr01367","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-367","title":"Volcano-hazard zonation for San Vicente volcano, El Salvador","docAbstract":"<p>San Vicente volcano, also known as Chichontepec, is one of many volcanoes along the volcanic arc in El Salvador. This composite volcano, located about 50 kilometers east of the capital city San Salvador, has a volume of about 130 cubic kilometers, rises to an altitude of about 2180 meters, and towers above major communities such as San Vicente, Tepetitan, Guadalupe, Zacatecoluca, and Tecoluca. In addition to the larger communities that surround the volcano, several smaller communities and coffee plantations are located on or around the flanks of the volcano, and major transportation routes are located near the lowermost southern and eastern flanks of the volcano. The population density and proximity around San Vicente volcano, as well as the proximity of major transportation routes, increase the risk that even small landslides or eruptions, likely to occur again, can have serious societal consequences.</p>\n<br/>\n<p>The eruptive history of San Vicente volcano is not well known, and there is no definitive record of historical eruptive activity. The last significant eruption occurred more than 1700 years ago, and perhaps long before permanent human habitation of the area. Nevertheless, this volcano has a very long history of repeated, and sometimes violent, eruptions, and at least once a large section of the volcano collapsed in a massive landslide. The oldest rocks associated with a volcanic center at San Vicente are more than 2 million years old. The volcano is composed of remnants of multiple eruptive centers that have migrated roughly eastward with time. Future eruptions of this volcano will pose substantial risk to surrounding communities.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Vancouver, WA","doi":"10.3133/ofr01367","usgsCitation":"Major, J., Schilling, S., Pullinger, C., Escobar, C., and Howell, M., 2001, Volcano-hazard zonation for San Vicente volcano, El Salvador: U.S. Geological Survey Open-File Report 2001-367, Report: 21 p.; Plate: 49.11 x 34.11 inches, https://doi.org/10.3133/ofr01367.","productDescription":"Report: 21 p.; Plate: 49.11 x 34.11 inches","numberOfPages":"22","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":161340,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01367.jpg"},{"id":2767,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0367/","linkFileType":{"id":5,"text":"html"}},{"id":279591,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0367/pdf/of2001-0367.pdf"},{"id":279592,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0367/pdf/of2001-0367_plate1.pdf"}],"scale":"50000","projection":"Universal Transverse Mercator projection","datum":"North American 1927","country":"El Salvador","city":"Guadalupe;San Vicente;Tecoluca;Tepetitan;Zacatecoluca","otherGeospatial":"San Vicente Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -90.1603,13.0262 ], [ -90.1603,14.4517 ], [ -87.5498,14.4517 ], [ -87.5498,13.0262 ], [ -90.1603,13.0262 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0de4b07f02db5fd792","contributors":{"authors":[{"text":"Major, J. J. 0000-0003-2449-4466","orcid":"https://orcid.org/0000-0003-2449-4466","contributorId":29461,"corporation":false,"usgs":true,"family":"Major","given":"J. J.","affiliations":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":206378,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":206379,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pullinger, C.R.","contributorId":27900,"corporation":false,"usgs":true,"family":"Pullinger","given":"C.R.","affiliations":[],"preferred":false,"id":206377,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Escobar, C.D.","contributorId":54640,"corporation":false,"usgs":true,"family":"Escobar","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":206380,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Howell, M.M.","contributorId":95109,"corporation":false,"usgs":true,"family":"Howell","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":206381,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":31560,"text":"ofr01395 - 2001 - Lahar-hazard zonation for San Miguel volcano, El Salvador","interactions":[],"lastModifiedDate":"2013-11-22T13:22:07","indexId":"ofr01395","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-395","title":"Lahar-hazard zonation for San Miguel volcano, El Salvador","docAbstract":"<p>San Miguel volcano, also known as Chaparrastique, is one of many volcanoes along the volcanic arc in El Salvador. The volcano, located in the eastern part of the country, rises to an altitude of about 2130 meters and towers above the communities of San Miguel, El Transito, San Rafael Oriente, and San Jorge. In addition to the larger communities that surround the volcano, several smaller communities and coffee plantations are located on or around the flanks of the volcano, and the PanAmerican and coastal highways cross the lowermost northern and southern flanks of the volcano. The population density around San Miguel volcano coupled with the proximity of major transportation routes increases the risk that even small volcano-related events, like landslides or eruptions, may have significant impact on people and infrastructure.</p>\n<br/>\n<p>San Miguel volcano is one of the most active volcanoes in El Salvador; it has erupted at least 29 times since 1699. Historical eruptions of the volcano consisted mainly of relatively quiescent emplacement of lava flows or minor explosions that generated modest tephra falls (erupted fragments of microscopic ash to meter sized blocks that are dispersed into the atmosphere and fall to the ground). Little is known, however, about prehistoric eruptions of the volcano. Chemical analyses of prehistoric lava flows and thin tephra falls from San Miguel volcano indicate that the volcano is composed dominantly of basalt (rock having silica content <53%), similar to the lava erupted by Hawaiian volcanoes. The chemical composition of eruptive products and the lack of evidence of large cataclysmic eruptions suggests that prehistoric eruptions probably were similar in nature to the historical eruptions. Unlike San Salvador and San Vicente volcanoes, San Miguel volcano does not appear to have had a history of violent explosive eruptions.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Vancouver, WA","doi":"10.3133/ofr01395","usgsCitation":"Major, J., Schilling, S., Pullinger, C., Escobar, C., Chesner, C., and Howell, M., 2001, Lahar-hazard zonation for San Miguel volcano, El Salvador: U.S. Geological Survey Open-File Report 2001-395, Report: 14 p.; Plate: 32.68 x 24.10 inches, https://doi.org/10.3133/ofr01395.","productDescription":"Report: 14 p.; Plate: 32.68 x 24.10 inches","numberOfPages":"16","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":161341,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01395.jpg"},{"id":2768,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0395/","linkFileType":{"id":5,"text":"html"}},{"id":279594,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0395/pdf/of2001-0395.pdf"},{"id":279593,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0395/pdf/of2001-0395_plate1.pdf"}],"scale":"50000","projection":"Universal Transverse Mercator projection","datum":"North American 1927","country":"El Salvador","city":"El Transito;San Jorge;San Miguel;San Rafael Oriente","otherGeospatial":"San Miguel Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -90.1603,13.0262 ], [ -90.1603,14.4517 ], [ -87.5498,14.4517 ], [ -87.5498,13.0262 ], [ -90.1603,13.0262 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4222","contributors":{"authors":[{"text":"Major, J. J. 0000-0003-2449-4466","orcid":"https://orcid.org/0000-0003-2449-4466","contributorId":29461,"corporation":false,"usgs":true,"family":"Major","given":"J. J.","affiliations":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":206383,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":206384,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pullinger, C.R.","contributorId":27900,"corporation":false,"usgs":true,"family":"Pullinger","given":"C.R.","affiliations":[],"preferred":false,"id":206382,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Escobar, C.D.","contributorId":54640,"corporation":false,"usgs":true,"family":"Escobar","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":206385,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chesner, C.A.","contributorId":74284,"corporation":false,"usgs":true,"family":"Chesner","given":"C.A.","affiliations":[],"preferred":false,"id":206386,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Howell, M.M.","contributorId":95109,"corporation":false,"usgs":true,"family":"Howell","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":206387,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":31545,"text":"ofr01110 - 2001 - Alaska resource data file: Cordova quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:40:24.480947","indexId":"ofr01110","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-110","title":"Alaska resource data file: Cordova quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01110","usgsCitation":"Nelson, S., 2001, Alaska resource data file: Cordova quadrangle: U.S. Geological Survey Open-File Report 2001-110, 147 p., https://doi.org/10.3133/ofr01110.","productDescription":"147 p.","costCenters":[],"links":[{"id":486302,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0110/ofr01110.pdf","text":"Report","size":"584 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-110"},{"id":160937,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2753,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389223,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50578.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Cordova quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -147.0,\n              60\n            ],\n            [\n              -144,\n              60\n            ],\n            [\n              -144,\n              61.0\n            ],\n            [\n              -147.0,\n              61.0\n            ],\n            [\n              -147.0,\n              60\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834ac","contributors":{"authors":[{"text":"Nelson, S.W.","contributorId":67869,"corporation":false,"usgs":true,"family":"Nelson","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":206351,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31543,"text":"ofr00447B - 2001 - Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997","interactions":[],"lastModifiedDate":"2026-04-29T15:22:50.093967","indexId":"ofr00447B","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-447","chapter":"B","title":"Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997","docAbstract":"The population in San Luis Obispo County has grown steadily during the 1990s, and some land use has been converted from dry farming to grazing to irrigated vineyards and urban areas. Because insufficient surface-water supplies are available to meet the growing demand, ground-water pumpage has increased and the resulting water-level declines have raised concern that this water resource may become overstressed. One particular concern is whether the larger ground-water basins within the county function as large individual basins or whether subsurface structures divide these large basins into smaller subbasins, as differences in ground-water-level data suggest. Interferometric Synthetic Aperture Radar (InSAR) is used in locating land-surface displacement, which may indicate subsurface structures in ground-water basins by determining seasonal and historical land-surface changes. Owing to the high spatial detail of InSAR imagery, the InSAR-derived displacement maps can be used with ground-water-level data to reveal differential aquifer-system compaction related to the presence of geological structures or the distribution of compressible sediments that may define subbasin boundaries. This report describes InSAR displacement maps of the Paso Robles area of San Luis Obispo County and compares them to maps of seasonal changes in ground-water levels to detect the presence of aquifer-system compaction.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00447B","usgsCitation":"Valentine, D., Densmore, J., Galloway, D., and Amelung, F., 2001, Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997: U.S. Geological Survey Open-File Report 2000-447, 1 over-size sheet., https://doi.org/10.3133/ofr00447B.","productDescription":"1 Plate: 48.00 x 36.00 inches","costCenters":[],"links":[{"id":503628,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/ofr00-447/pdf/ofr00-447.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":2751,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr00-447/","linkFileType":{"id":5,"text":"html"}},{"id":160935,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"California","county":"San Luis Obispo County","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a18e4b07f02db605204","contributors":{"authors":[{"text":"Valentine, David W.","contributorId":47427,"corporation":false,"usgs":true,"family":"Valentine","given":"David","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":206348,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Densmore, Jill N. 0000-0002-5345-6613 jidensmo@usgs.gov","orcid":"https://orcid.org/0000-0002-5345-6613","contributorId":197491,"corporation":false,"usgs":true,"family":"Densmore","given":"Jill","email":"jidensmo@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":206349,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Galloway, Devin L. 0000-0003-0904-5355 dlgallow@usgs.gov","orcid":"https://orcid.org/0000-0003-0904-5355","contributorId":679,"corporation":false,"usgs":true,"family":"Galloway","given":"Devin","email":"dlgallow@usgs.gov","middleInitial":"L.","affiliations":[{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":5078,"text":"Southwest Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":206346,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Amelung, Falk","contributorId":83569,"corporation":false,"usgs":true,"family":"Amelung","given":"Falk","affiliations":[],"preferred":false,"id":206347,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":31568,"text":"ofr01455 - 2001 - Lahar hazards at Mombacho Volcano, Nicaragua","interactions":[],"lastModifiedDate":"2013-11-22T13:37:57","indexId":"ofr01455","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-455","title":"Lahar hazards at Mombacho Volcano, Nicaragua","docAbstract":"Mombacho volcano, at 1,350 meters, is situated on the shores of Lake Nicaragua and about 12 kilometers south of Granada, a city of about 90,000 inhabitants. Many more people live a few kilometers southeast of Granada in 'las Isletas de Granada and the nearby 'Peninsula de Aseses. These areas are formed of deposits of a large debris avalanche (a fast moving avalanche of rock and debris) from Mombacho. Several smaller towns with population, in the range of 5,000 to 12,000 inhabitants are to the northwest and the southwest of Mombacho volcano. Though the volcano has apparently not been active in historical time, or about the last 500 years, it has the potential to produce landslides and debris flows (watery flows of mud, rock, and debris -- also known as lahars when they occur on a volcano) that could inundate these nearby populated areas. -- Vallance, et.al., 2001","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Vancouver, WA","doi":"10.3133/ofr01455","usgsCitation":"Vallance, J., Schilling, S., and Devoli, G., 2001, Lahar hazards at Mombacho Volcano, Nicaragua: U.S. Geological Survey Open-File Report 2001-455, Report: 14 p.; Plate: 34.63 x 40.63 inches, https://doi.org/10.3133/ofr01455.","productDescription":"Report: 14 p.; Plate: 34.63 x 40.63 inches","numberOfPages":"16","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":161075,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01455.jpg"},{"id":2809,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0455/","linkFileType":{"id":5,"text":"html"}},{"id":279602,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0455/pdf/of2001-0455.pdf"},{"id":279603,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0455/pdf/of2001-0455_plate1.pdf"}],"scale":"50000","projection":"Universal Transverse Mercator projection","datum":"North American 1927","country":"Nicaragua","city":"Granada","otherGeospatial":"Lake Nicaragua;Mombacho Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.834,10.7087 ], [ -87.834,15.0293 ], [ -82.6227,15.0293 ], [ -82.6227,10.7087 ], [ -87.834,10.7087 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b31e4b07f02db6b41a4","contributors":{"authors":[{"text":"Vallance, J.W.","contributorId":45336,"corporation":false,"usgs":true,"family":"Vallance","given":"J.W.","affiliations":[],"preferred":false,"id":206415,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":206413,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Devoli, G.","contributorId":42632,"corporation":false,"usgs":true,"family":"Devoli","given":"G.","affiliations":[],"preferred":false,"id":206414,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":31550,"text":"ofr01200 - 2001 - Alaska resource data file: Taylor Mountains quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:21:12.301386","indexId":"ofr01200","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-200","title":"Alaska resource data file: Taylor Mountains quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01200","usgsCitation":"Hudson, T., 2001, Alaska resource data file: Taylor Mountains quadrangle: U.S. Geological Survey Open-File Report 2001-200, 51 p., https://doi.org/10.3133/ofr01200.","productDescription":"51 p.","costCenters":[],"links":[{"id":486295,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0200/ofr01200.pdf","text":"Report","size":"278 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-200"},{"id":2758,"rank":2,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389282,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50583.htm"},{"id":160765,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Taylor Mountains quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156,\n              61\n            ],\n            [\n              -159,\n              61\n            ],\n            [\n              -159,\n              60\n            ],\n            [\n              -156,\n              60\n            ],\n            [\n              -156,\n              61\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db68349d","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206364,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31557,"text":"ofr01332 - 2001 - Hawaiian Volcano Observatory summary 100; Part 1, seismic data, January to December 2000","interactions":[],"lastModifiedDate":"2023-08-29T19:19:59.493186","indexId":"ofr01332","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-332","title":"Hawaiian Volcano Observatory summary 100; Part 1, seismic data, January to December 2000","docAbstract":"<p>The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year and a chronological narrative describing the volcanic events. The seismic summary is offered without interpretation as a source of preliminary data. It is complete in the sense that all data for events of M≥1.5 routinely gathered by the Observatory are included. The emphasis in collection of tilt and deformation data has shifted from quarterly measurements at a few water-tube tilt stations (“wet” tilt) to a larger number of continuously recording borehole tiltmeters, repeated measurements at numerous spirit-level tilt stations (“dry” tilt), and surveying of level and trilateration networks. Because of the large quantity of deformation data now gathered and differing schedules of data reduction, the seismic and deformation summaries are published separately.</p>\n<br/>\n<p>The HVO summaries have been published in various forms since 1956. Summaries prior to 1974 were issued quarterly, but cost, convenience of preparation and distribution, and the large quantities of data dictated an annual publication beginning with Summary 74 for the year 1974. Summary 86 (the introduction of CUSP at HVO) includes a description of the seismic instrumentation, calibration, and processing used in recent years. The present summary includes enough background information on the seismic network and processing to allow use of the data and to provide an understanding of how they were gathered.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01332","usgsCitation":"Nakata, J.S., 2001, Hawaiian Volcano Observatory summary 100; Part 1, seismic data, January to December 2000: U.S. Geological Survey Open-File Report 2001-332, 77 p., https://doi.org/10.3133/ofr01332.","productDescription":"77 p.","numberOfPages":"77","temporalStart":"2000-01-01","temporalEnd":"2000-12-31","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"links":[{"id":420255,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50574.htm","linkFileType":{"id":5,"text":"html"}},{"id":59806,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0332/pdf/of01-332.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":282765,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2765,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0332/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Hawai'i","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -161.5,17.74 ], [ -161.5,23.23 ], [ -153.5,23.23 ], [ -153.5,17.74 ], [ -161.5,17.74 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6de4b07f02db63f1b9","contributors":{"authors":[{"text":"Nakata, Jennifer S.","contributorId":18364,"corporation":false,"usgs":true,"family":"Nakata","given":"Jennifer","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":206371,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31561,"text":"ofr01419 - 2001 - Selected hydrologic data for Cedar Valley, Iron County, southwestern Utah, 1930-2001","interactions":[],"lastModifiedDate":"2017-04-11T09:50:45","indexId":"ofr01419","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-419","title":"Selected hydrologic data for Cedar Valley, Iron County, southwestern Utah, 1930-2001","docAbstract":"<p>This report presents hydrologic data collected by the U. S. Geological Survey from 1930 to 2001 with emphasis on data collected from 1997 to 2001 as part of a study of ground-water resources in Cedar Valley, Iron County, southwestern Utah (fig. 1). Data collected prior to this study are also presented to show long-term trends. Data were collected during this study in cooperation with the Central Iron County Water Conservancy District; Utah Department of Natural Resources, Division of Water Resources; Utah Department of Environmental Quality, Division of Water Quality; Cedar City; and Enoch City; as part of a study to better understand the ground-water resources of Cedar Valley and to assess possible effects of increased ground-water withdrawal on water quality. Quality of ground water in Cedar Valley is variable and water suppliers need to know if additional water resources can be developed without drawing water of lower quality into public-supply wells.</p><p>Cedar Valley is in central Iron County at the transitional boundary between the Basin and Range and Colorado Plateau physiographic provinces described by Hunt (1974) and covers about 570 mi2. Additional data from wells west of Cedar Valley and to the south in the vicinity of Kanarraville in the Virgin River drainage (Colorado River Basin) adjacent to the study area are included. Cedar Valley is bounded on the east by the Markagunt Plateau and Red Hills, on the southwest by the Harmony Mountains, on the west by a complex of low hills, and on the north by the Black Mountains. Altitudes in the study area range from about 5,300 ft in Mud Spring Canyon to about 10,400 ft at Blowhard Mountain to the east.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Salt Lake City, UT","doi":"10.3133/ofr01419","usgsCitation":"Howells, J.H., Mason, J.L., and Slaugh, B.A., 2001, Selected hydrologic data for Cedar Valley, Iron County, southwestern Utah, 1930-2001: U.S. Geological Survey Open-File Report 2001-419, Report: iv, 81 p.; 3 Plates: 18.90 x 26.00 inches or smaller, https://doi.org/10.3133/ofr01419.","productDescription":"Report: iv, 81 p.; 3 Plates: 18.90 x 26.00 inches or smaller","numberOfPages":"87","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":161174,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":339529,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/plate3.pdf","text":"Plate 3","size":"1.5 MB","linkHelpText":"Map showing location of surface water sites where streamflow was measured for seepage estimates, Cedar Valley, Iron County, southwestern Utah"},{"id":339530,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/OF01419.pdf","size":"5.1 MB"},{"id":339528,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/plate2.pdf","text":"Plate 2","size":"241 KB","linkHelpText":"Map showing location of selected wells and surface-water sites where water-quality data were collected, Cedar Valley, Iron County, southwestern Utah"},{"id":2769,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/","linkFileType":{"id":5,"text":"html"}},{"id":339527,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/plate1.pdf","text":"Plate 1","size":"7.0 MB","linkHelpText":"Map showing location of selected wells used for water-level measurements, Cedar Valely, Iron County, southwestern Utah"}],"country":"United States","state":"Utah","county":"Iron County","otherGeospatial":"Cedar Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.8333,\n              37.6\n            ],\n            [\n              -113.3333,\n              37.6\n            ],\n            [\n              -113.3333,\n              38.13333\n            ],\n            [\n              -112.8333,\n              38.13333\n            ],\n            [\n              -112.8333,\n             37.6\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48f2e4b07f02db55a612","contributors":{"authors":[{"text":"Howells, James H. jhowells@usgs.gov","contributorId":969,"corporation":false,"usgs":true,"family":"Howells","given":"James","email":"jhowells@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":206389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mason, James L.","contributorId":14397,"corporation":false,"usgs":true,"family":"Mason","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Slaugh, Bradley A. baslaugh@usgs.gov","contributorId":966,"corporation":false,"usgs":true,"family":"Slaugh","given":"Bradley","email":"baslaugh@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":206388,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":31556,"text":"ofr01327 - 2001 - Occurrence and distribution of selected contaminants in public drinking-water supplies in the surficial aquifer in Delaware","interactions":[],"lastModifiedDate":"2012-02-02T00:09:06","indexId":"ofr01327","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-327","title":"Occurrence and distribution of selected contaminants in public drinking-water supplies in the surficial aquifer in Delaware","docAbstract":"Water samples were collected from August through November 2000 from 30 randomly selected public drinking-water supply wells screened in the unconfined aquifer in Delaware, and analyzed to assess the occurrence and distribution of selected pesticide compounds, volatile organic compounds, major inorganic ions, and nutrients. Water from a subset of 10 wells was sampled and analyzed for radium and radon. The average age of ground water entering the well screens in all the wells was determined to be generally less than 20 years.\r\n\r\nLow concentrations of pesticide compounds and volatile organic compounds were detected throughout the State of Delaware, with several compounds often detected in each water sample. Pesticide and metabolite (pesticide degradation products) concentrations were generally less than 1 microgram per liter, and were detected in sam-ples from 27 of 30 wells. Of the 45 pesticides and 13 metabolites analyzed, 19 compounds (13 pesticides and 6 metabolites) were detected in at least 1 of the 30 samples. Desethylatrazine, alachlor ethane sulfonic acid, metolachlor ethane sulfonic acid, metolachlor, and atrazine were the most frequently detected pesticide compounds, and were present in at least half the samples. None of the pesticide detections was above the U.S. Environmental Protection Agency's Primary Maximum Contaminant Levels or Health Advisories. Volatile organic compounds also were present at low concentrations (generally less than 1 microgram per liter) in samples from all 30 wells. Of the 85 volatile organic com-pounds analyzed, 34 compounds were detected in at least 1 of the 30 samples. Chloroform, tetrachloroethene, and methyl tert-butyl ether were the most frequently detected volatile organic compounds, and were found in at least half the samples. None of the volatile organic compound detections was above U.S. Environmental Protection Agency's Primary Maximum Contaminant Levels or Health Advisories.\r\n\r\nA few samples contained compounds with concentrations above the U.S. Environmental Protection Agency's Primary Maximum Contaminant Levels or Secondary Maximum Contaminant Levels for inorganic compounds and radionuclides. One sample out of 30 contained a concentration of nitrite plus nitrate above the U.S. Environmental Protection Agency's Primary Maximum Contaminant Level of 10 milligrams per liter as nitrogen. Iron and manganese concentrations above the U.S. Environmental Protection Agency's Secondary Maximum Contaminant Levels were found in 7 of 30 ground-water samples, most of them from Sussex County. In the 10 wells sampled for radionuclides, only one sample had detectable levels of radium-224 and -226, and another sample contained detectable levels of radium-228; both of these samples also had detectable gross-alpha and gross-beta activities. None of these activities were above the U.S. Environ-mental Protection Agency's Primary Maximum Contaminant Levels or Secondary Maximum Contaminant Levels. Radon was detected in all 10 samples, but was above the current U.S. Environmental Protection Agency's proposed Primary Maximum Contaminant Level of 300 picocuries per liter in only one sample.","language":"ENGLISH","doi":"10.3133/ofr01327","usgsCitation":"Ferrari, M., 2001, Occurrence and distribution of selected contaminants in public drinking-water supplies in the surficial aquifer in Delaware: U.S. Geological Survey Open-File Report 2001-327, viii, 62 p. : col. ill., col. maps ; 28 cm., https://doi.org/10.3133/ofr01327.","productDescription":"viii, 62 p. : col. ill., col. maps ; 28 cm.","costCenters":[],"links":[{"id":160784,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2764,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr01-327/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a2f3","contributors":{"authors":[{"text":"Ferrari, Matthew J.","contributorId":67082,"corporation":false,"usgs":true,"family":"Ferrari","given":"Matthew J.","affiliations":[],"preferred":false,"id":206370,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31563,"text":"ofr01431 - 2001 - Volcano hazards at Fuego and Acatenango, Guatemala","interactions":[],"lastModifiedDate":"2013-11-22T13:21:01","indexId":"ofr01431","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-431","title":"Volcano hazards at Fuego and Acatenango, Guatemala","docAbstract":"The Fuego-Acatenango massif comprises a string of five or more volcanic vents along a north-south trend that is perpendicular to that of the Central American arc in Guatemala. From north to south known centers of volcanism are Ancient Acatenango, Yepocapa, Pico Mayor de Acatenango, Meseta, and Fuego. Volcanism along the trend stretches back more than 200,000 years. Although many of the centers have been active contemporaneously, there is a general sequence of younger volcanism, from north to south along the trend. This massive volcano complex towers more than 3500 meters (m) above the Pacific coastal plain to the south and 2000 m above the Guatemalan Highlands to the north. The volcano complex comprises remnants of multiple eruptive centers, which periodically have collapsed to form huge debris avalanches. The largest of these avalanches extended more than 50 kilometers (km) from its source and covered more than 300 square km. The volcano has potential to produce huge debris avalanches that could inundate large areas of the Pacific coastal plain. In areas around the volcanoes and downslope toward the coastal plain, more than 100,000 people are potentially at risk from these and other flowage phenomena.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Vancouver, WA","doi":"10.3133/ofr01431","usgsCitation":"Vallance, J., Schilling, S., Matias, O., Rose, W.I., and Howell, M., 2001, Volcano hazards at Fuego and Acatenango, Guatemala: U.S. Geological Survey Open-File Report 2001-431, Report: 23 p.; 4 Plates: 40.01 x 40.63 inches or smaller, https://doi.org/10.3133/ofr01431.","productDescription":"Report: 23 p.; 4 Plates: 40.01 x 40.63 inches or smaller","numberOfPages":"24","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":161176,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01431.jpg"},{"id":2771,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0431/","linkFileType":{"id":5,"text":"html"}},{"id":279596,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0431/pdf/of2001-0431_plate1.pdf"},{"id":279595,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0431/pdf/of2001-0431.pdf"},{"id":279597,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0431/pdf/of2001-0431_plate2.pdf"},{"id":279598,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0431/pdf/of2001-0431_plate4.pdf"},{"id":279599,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0431/pdf/of2001-0431_plate3.pdf"}],"scale":"50000","projection":"Universal Transverse Mercator projection","datum":"North American 1927","country":"Guatemala","otherGeospatial":"Acatenango;Fuego","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -92.3105,13.6279 ], [ -92.3105,16.5045 ], [ -89.3298,16.5045 ], [ -89.3298,13.6279 ], [ -92.3105,13.6279 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49b6e4b07f02db5cbac2","contributors":{"authors":[{"text":"Vallance, J.W.","contributorId":45336,"corporation":false,"usgs":true,"family":"Vallance","given":"J.W.","affiliations":[],"preferred":false,"id":206394,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schilling, S. P.","contributorId":42606,"corporation":false,"usgs":true,"family":"Schilling","given":"S. P.","affiliations":[],"preferred":false,"id":206393,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Matias, O.","contributorId":56692,"corporation":false,"usgs":true,"family":"Matias","given":"O.","email":"","affiliations":[],"preferred":false,"id":206395,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rose, William I. Jr.","contributorId":71556,"corporation":false,"usgs":true,"family":"Rose","given":"William","suffix":"Jr.","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":206396,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Howell, M.M.","contributorId":95109,"corporation":false,"usgs":true,"family":"Howell","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":206397,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":31566,"text":"ofr01444 - 2001 - Landslides induced by Hurricane Mitch in El Salvador -- an inventory and descriptions of selected features","interactions":[],"lastModifiedDate":"2012-02-02T00:09:12","indexId":"ofr01444","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-444","title":"Landslides induced by Hurricane Mitch in El Salvador -- an inventory and descriptions of selected features","language":"ENGLISH","doi":"10.3133/ofr01444","usgsCitation":"Crone, A.J., Baum, R.L., Lidke, D.J., Sather, D., Bradley, L., and Tarr, A.C., 2001, Landslides induced by Hurricane Mitch in El Salvador -- an inventory and descriptions of selected features (Version 1.0): U.S. Geological Survey Open-File Report 2001-444, Also available in Spanish. 28 30 p., 11 over-size sheets. , https://doi.org/10.3133/ofr01444.","productDescription":"Also available in Spanish. 28 30 p., 11 over-size sheets. ","costCenters":[],"links":[{"id":2774,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0444/","linkFileType":{"id":5,"text":"html"}},{"id":161206,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a9186","contributors":{"authors":[{"text":"Crone, Anthony J. 0000-0002-3006-406X crone@usgs.gov","orcid":"https://orcid.org/0000-0002-3006-406X","contributorId":790,"corporation":false,"usgs":true,"family":"Crone","given":"Anthony","email":"crone@usgs.gov","middleInitial":"J.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":206404,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baum, Rex L. 0000-0001-5337-1970 baum@usgs.gov","orcid":"https://orcid.org/0000-0001-5337-1970","contributorId":1288,"corporation":false,"usgs":true,"family":"Baum","given":"Rex","email":"baum@usgs.gov","middleInitial":"L.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":206407,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lidke, David J. 0000-0003-4668-1617 dlidke@usgs.gov","orcid":"https://orcid.org/0000-0003-4668-1617","contributorId":1211,"corporation":false,"usgs":true,"family":"Lidke","given":"David","email":"dlidke@usgs.gov","middleInitial":"J.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":206406,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sather, Damon","contributorId":78376,"corporation":false,"usgs":true,"family":"Sather","given":"Damon","email":"","affiliations":[],"preferred":false,"id":206409,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bradley, Lee-Ann bradley@usgs.gov","contributorId":1141,"corporation":false,"usgs":true,"family":"Bradley","given":"Lee-Ann","email":"bradley@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":206405,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Tarr, Arthur C. atarr@usgs.gov","contributorId":1925,"corporation":false,"usgs":true,"family":"Tarr","given":"Arthur","email":"atarr@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":206408,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":31555,"text":"ofr01270 - 2001 - Alaska resource data file: Goodnews Bay quadrangle","interactions":[],"lastModifiedDate":"2025-05-29T18:40:53.488185","indexId":"ofr01270","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-270","title":"Alaska resource data file: Goodnews Bay quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01270","usgsCitation":"Hudson, T., 2001, Alaska resource data file: Goodnews Bay quadrangle: U.S. Geological Survey Open-File Report 2001-270, 92 p., https://doi.org/10.3133/ofr01270.","productDescription":"92 p.","costCenters":[],"links":[{"id":2763,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389307,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50922.htm"},{"id":487044,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0270/ofr20010270.pdf","text":"Report","size":"417 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 2001-0270"},{"id":160783,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Goodnews Bay quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -162,\n              59\n            ],\n            [\n              -159,\n              59\n            ],\n            [\n              -159,\n              60\n            ],\n            [\n              -162,\n              60\n            ],\n            [\n              -162,\n              59\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db688eac","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206369,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31551,"text":"ofr01219 - 2001 - Alaska resource data file: Bethel quadrangle","interactions":[],"lastModifiedDate":"2025-06-02T21:39:13.1526","indexId":"ofr01219","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-219","title":"Alaska resource data file: Bethel quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01219","usgsCitation":"Hudson, T., 2001, Alaska resource data file: Bethel quadrangle: U.S. Geological Survey Open-File Report 2001-219, 60 p., https://doi.org/10.3133/ofr01219.","productDescription":"60 p.","costCenters":[],"links":[{"id":489427,"rank":4,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0219/coverthb.jpg"},{"id":389276,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50584.htm"},{"id":2759,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":160766,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":489428,"rank":5,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0219/ofr01219.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"Bethel quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -162,\n              61\n            ],\n            [\n              -159,\n              61\n            ],\n            [\n              -159,\n              60\n            ],\n            [\n              -162,\n              60\n            ],\n            [\n              -162,\n              61\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834cf","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206365,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31572,"text":"ofr2001503 - 2001 - Gravity and Magnetic Surveys Over the Santa Rita Fault System, Southeastern Arizona","interactions":[],"lastModifiedDate":"2012-02-02T00:09:12","indexId":"ofr2001503","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-503","title":"Gravity and Magnetic Surveys Over the Santa Rita Fault System, Southeastern Arizona","docAbstract":"Gravity and magnetic surveys were performed in the northeast portion of the Santa Rita Experimental Range, in southeastern Arizona, to identify faults and gain a better understanding of the subsurface geology. A total of 234 gravity stations were established, and numerous magnetic data were collected with portable and truck-mounted\r\nproton precession magnetometers. In addition, one line of very low frequency electromagnetic data was collected together with magnetic data.\r\n\r\n\r\nGravity anomalies are used to identify two normal faults that project northward toward a previously identified fault. The gravity data also confirm the location of a second previously interpreted normal fault. Interpretation of magnetic anomaly data indicates the presence of a higher-susceptibility sedimentary unit located beneath lowersusceptibility surficial sediments. Magnetic anomaly data identify a 1-km-wide negative anomaly east of these faults caused by an unknown source and reveal the high variability of susceptibility in the Tertiary intrusive rocks in the area.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr2001503","usgsCitation":"Hegmann, M., 2001, Gravity and Magnetic Surveys Over the Santa Rita Fault System, Southeastern Arizona: U.S. Geological Survey Open-File Report 2001-503, Report: 108 p.; GIS Files, https://doi.org/10.3133/ofr2001503.","productDescription":"Report: 108 p.; GIS Files","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":658,"text":"Western Mineral Resources","active":false,"usgs":true}],"links":[{"id":161143,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11423,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-503/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abae4b07f02db672279","contributors":{"authors":[{"text":"Hegmann, Mary","contributorId":67557,"corporation":false,"usgs":true,"family":"Hegmann","given":"Mary","email":"","affiliations":[],"preferred":false,"id":206421,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31573,"text":"ofr01506 - 2001 - Borehole P- and S-wave velocity at thirteen stations in Southern California","interactions":[],"lastModifiedDate":"2014-03-03T15:39:15","indexId":"ofr01506","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-506","title":"Borehole P- and S-wave velocity at thirteen stations in Southern California","docAbstract":"The U.S. Geological Survey (USGS), as part of a program to acquire seismic velocity data at locations of strong-ground motion in earthquakes (e.g., Gibbs et al., 2000), has investigated thirteen additional sites in the Southern California region. Of the thirteen sites, twelve are in the vicinity of Whittier, California, and one is located in San Bernardino, California.\n\nSeveral deployments of temporary seismographs were made after the Whittier Narrows, California earthquake of 1 October 1987 (Mueller et al., 1988). A deployment, between 2 October and 9 November 1987, was the motivation for selection of six of the drill sites. Temporary portable seismographs at Hoover School (HOO), Lincoln School (LIN), Corps of Engineers Station (NAR), Olive Junior High School (OLV), Santa Anita Golf Course (SAG), and Southwestern Academy (SWA) recorded significant aftershock data. These portable sites, with the exception of Santa Anita Golf Course, were co-sited with strong-motion recorders.\n\nStations at HOO, Lincoln School Whittier (WLB), Saint Paul High School (STP), Alisos Adult School (EXC), Cerritos College Gymnasium (CGM), Cerritos College Physical Science Building (CPS), and Cerritos College Police Building (CPB) were part of an array of digital strong-motion stations deployed from \"bedrock\" in Whittier to near the deepest part of the Los Angeles basin in Norwalk. Although development and siting of this new array (partially installed at the time of this writing) was generally motivated by the Whittier Narrows earthquake, these new sites (with the exception of HOO) were not part of any Whittier Narrows aftershock deployments. A similar new digital strong-motion site was installed at the San Bernardino Fire Station during the same time frame.\n\nVelocity data were obtained to depths of about 90 meters at two sites, 30 meters at seven sites, and 18 to 25 meters at four sites. Lithology data from the analysis of cuttings and samples was obtained from the two 90-meter deep holes and from five of the shallower holes to supplement the velocity interpretation. The two 90-meter boreholes (SB1, CPB) have been instrumented with borehole seismometers for continuous monitoring of earthquake activity (Rogers et al., 1998). No drill samples or cuttings were obtained from the other six sites, but driller's logs were scanned for major changes noted there. The velocity models at those sites were interpreted using only the measured data and major changes in the driller's log as noted above.\n\nThe sites are shown in Figure 1 and listed in Table 1, which gives references to information regarding the strong-motion data. Several hundred strong-motion records of the main-shock were written by this moderate size earthquake (ML = 5.9), making it important from a scientific and engineering prospective (Brady et al., 1988; Shakal et al., 1988).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01506","usgsCitation":"Gibbs, J., Boore, D.M., Tinsley, J., and Mueller, C.S., 2001, Borehole P- and S-wave velocity at thirteen stations in Southern California: U.S. Geological Survey Open-File Report 2001-506, i, 117 p., https://doi.org/10.3133/ofr01506.","productDescription":"i, 117 p.","numberOfPages":"121","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":2812,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0506/","linkFileType":{"id":5,"text":"html"}},{"id":161144,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0506/report-thumb.jpg"},{"id":59807,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0506/pdf/of01-506.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.25,33.5 ], [ -118.25,34.5 ], [ -117.0,34.5 ], [ -117.0,33.5 ], [ -118.25,33.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a14e4b07f02db602a4d","contributors":{"authors":[{"text":"Gibbs, James F.","contributorId":95880,"corporation":false,"usgs":true,"family":"Gibbs","given":"James F.","affiliations":[],"preferred":false,"id":206425,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boore, David M. boore@usgs.gov","contributorId":2509,"corporation":false,"usgs":true,"family":"Boore","given":"David","email":"boore@usgs.gov","middleInitial":"M.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":206423,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tinsley, John C. III jtinsley@usgs.gov","contributorId":3266,"corporation":false,"usgs":true,"family":"Tinsley","given":"John C.","suffix":"III","email":"jtinsley@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":206424,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mueller, Charles S. 0000-0002-1868-9710 cmueller@usgs.gov","orcid":"https://orcid.org/0000-0002-1868-9710","contributorId":955,"corporation":false,"usgs":true,"family":"Mueller","given":"Charles","email":"cmueller@usgs.gov","middleInitial":"S.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":206422,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":31547,"text":"ofr01192 - 2001 - Alaska resource data file: Dillingham quadrangle","interactions":[],"lastModifiedDate":"2025-06-16T16:56:28.384946","indexId":"ofr01192","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-192","displayTitle":"Alaska Resource Data File: Dillingham quadrangle","title":"Alaska resource data file: Dillingham quadrangle","docAbstract":"<p><br data-mce-bogus=\"1\"></p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01192","usgsCitation":"Hudson, T., 2001, Alaska resource data file: Dillingham quadrangle: U.S. Geological Survey Open-File Report 2001-192, 24 p., https://doi.org/10.3133/ofr01192.","productDescription":"24 p.","costCenters":[],"links":[{"id":160939,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0192/coverthb.jpg"},{"id":389277,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50581.htm"},{"id":2755,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":490791,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0192/ofr01192.pdf","text":"Report"}],"country":"United States","state":"Alaska","otherGeospatial":"Dillingham quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156,\n              59\n            ],\n            [\n              -159,\n              59\n            ],\n            [\n              -159,\n              60\n            ],\n            [\n              -156,\n              60\n            ],\n            [\n              -156,\n              59\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db68351a","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206353,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31548,"text":"ofr01193 - 2001 - Alaska resource data file: Skagway quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:26:09.296892","indexId":"ofr01193","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-193","title":"Alaska resource data file: Skagway quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01193","usgsCitation":"Crafford, T.C., 2001, Alaska resource data file: Skagway quadrangle: U.S. Geological Survey Open-File Report 2001-193, 186 p., https://doi.org/10.3133/ofr01193.","productDescription":"186 p.","costCenters":[],"links":[{"id":486296,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0193/ofr01193.pdf","text":"Report","size":"822 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-193"},{"id":160940,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2756,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389281,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50582.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Skagway quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -135,\n              60\n            ],\n            [\n              -138,\n              60\n            ],\n            [\n              -138,\n              59\n            ],\n            [\n              -135,\n              59\n            ],\n            [\n              -135,\n              60\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834ca","contributors":{"authors":[{"text":"Crafford, Thomas C. 0000-0003-1524-0835","orcid":"https://orcid.org/0000-0003-1524-0835","contributorId":97953,"corporation":false,"usgs":true,"family":"Crafford","given":"Thomas","email":"","middleInitial":"C.","affiliations":[{"id":260,"text":"Energy and Minerals","active":false,"usgs":true}],"preferred":false,"id":206354,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31549,"text":"ofr01195 - 2001 - Chemical composition of strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation: Channel-composited and individual rock samples of measured section J and their relationship of measured sections A and B, central part of Rasmussen Ridge, Caribou County, Idaho","interactions":[],"lastModifiedDate":"2021-12-30T21:04:50.179057","indexId":"ofr01195","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-195","title":"Chemical composition of strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation: Channel-composited and individual rock samples of measured section J and their relationship of measured sections A and B, central part of Rasmussen Ridge, Caribou County, Idaho","docAbstract":"This study, one in a series, reports bulk chemical composition of rock samples collected from a core, referred to as Measured Section J, drilled at a site that subsequently was developed into the Enoch Valley phosphate mine in southeastern Idaho. The core is continuous and cuts through the entire thickness of the Meade Peak Phosphatic Shale Member of the Phosphoria Formation. The steeply dipping Meade Peak extends from 182 to 495 feet below the ground surface, which is the greatest below-ground depth of rock that has been sampled to date. The core was drilled before the start of mining, and the rocks consequently have not been exposed to the atmosphere or surficial weathering processes or fractured as a result of mining as are the rocks from other described sections. Hence, this section of the Meade Peak in the core is the least altered section of this member sampled in this series of studies. The channel-sampled rocks from Section J form a set of contiguous intervals across the entire thickness of the Meade Peak. These channel samples characterize?in ascending order?the lower phosphate ore, interlayered middle waste shale, upper phosphate ore, and upper waste shale units of the member. The Section J channel-sample suite includes 3 composite samples of the uppermost 7 feet of the Grandeur Tongue of the Permian Park City Formation, a dolomitic unit that directly underlies the Meade Peak. It also includes an analysis of a 0.1 foot section of chert directly overlying the Meade Peak. The concentrations of the chemical elements in the channel samples are compared with those of Measured Sections Aand B that were obtained from the same mine. In addition to the channel samples, 85 rock samples were selected from the core to address specific geochemical questions that resulted from examination of the core. For example, several of these samples correspond to cored rock that had unusual concentrations of various elements that were determined using a hand-held, x-ray fluorescence instrument. Other individual samples consist of several samples taken within a short interval of the core that leads to an abrupt change in lithology. Overall, the rocks from Measured Section J exhibit the least alteration from interaction with ground water compared with rocks from any of the measured sections that have been described in our previous studies.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01195","usgsCitation":"Herring, J., Grauch, R., Siems, D.F., Tysdal, R.G., Johnson, E.A., Zielinski, R.A., Desborough, G.A., Knudsen, A., and Gunter, M.E., 2001, Chemical composition of strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation: Channel-composited and individual rock samples of measured section J and their relationship of measured sections A and B, central part of Rasmussen Ridge, Caribou County, Idaho (Version 1.0): U.S. Geological Survey Open-File Report 2001-195, 72 p., https://doi.org/10.3133/ofr01195.","productDescription":"72 p.","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":160764,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":393703,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_51413.htm"},{"id":2757,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0195/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Idaho","county":"Caribou County","otherGeospatial":"Rasmussen Ridge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.4333,\n              42.8167\n            ],\n            [\n              -111.3667,\n              42.8167\n            ],\n            [\n              -111.3667,\n              42.9\n            ],\n            [\n              -111.4333,\n              42.9\n            ],\n            [\n              -111.4333,\n              42.8167\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e0e4b07f02db5e3de8","contributors":{"authors":[{"text":"Herring, J. R.","contributorId":43348,"corporation":false,"usgs":true,"family":"Herring","given":"J. R.","affiliations":[],"preferred":false,"id":206358,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grauch, R. I. 0000-0002-1763-0813","orcid":"https://orcid.org/0000-0002-1763-0813","contributorId":107698,"corporation":false,"usgs":true,"family":"Grauch","given":"R. I.","affiliations":[],"preferred":false,"id":206363,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Siems, D. F.","contributorId":101239,"corporation":false,"usgs":true,"family":"Siems","given":"D.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":206360,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tysdal, R. G.","contributorId":8823,"corporation":false,"usgs":true,"family":"Tysdal","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":206355,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, E. A.","contributorId":87893,"corporation":false,"usgs":true,"family":"Johnson","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":206359,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zielinski, R. A. 0000-0002-4047-5129","orcid":"https://orcid.org/0000-0002-4047-5129","contributorId":106930,"corporation":false,"usgs":true,"family":"Zielinski","given":"R.","email":"","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":206362,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Desborough, G. A.","contributorId":34527,"corporation":false,"usgs":true,"family":"Desborough","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":206356,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Knudsen, A.","contributorId":41054,"corporation":false,"usgs":true,"family":"Knudsen","given":"A.","affiliations":[],"preferred":false,"id":206357,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Gunter, M. E.","contributorId":104937,"corporation":false,"usgs":true,"family":"Gunter","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":206361,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":31554,"text":"ofr01269 - 2001 - Alaska resource data files: Hagemeister Island quadrangle","interactions":[],"lastModifiedDate":"2025-07-29T11:50:24.123094","indexId":"ofr01269","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-269","title":"Alaska resource data files: Hagemeister Island quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01269","usgsCitation":"Hudson, T., 2001, Alaska resource data files: Hagemeister Island quadrangle: U.S. Geological Survey Open-File Report 2001-269, 78 p., https://doi.org/10.3133/ofr01269.","productDescription":"78 p.","costCenters":[],"links":[{"id":400101,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50586.htm","linkFileType":{"id":5,"text":"html"}},{"id":486934,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0269/ofr20010296.pdf","text":"Report","size":"247 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 2001-0269"},{"id":2762,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":160769,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Hagemeister Island quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -162.5,\n              58\n            ],\n            [\n              -160,\n              58\n            ],\n            [\n              -160,\n              59\n            ],\n            [\n              -162.5,\n              59\n            ],\n            [\n              -162.5,\n              58\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834c3","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206368,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31552,"text":"ofr01223 - 2001 - Digital mapping techniques '01; workshop proceedings; May 20-23, 2001, Tuscaloosa, Alabama","interactions":[],"lastModifiedDate":"2012-02-02T00:09:06","indexId":"ofr01223","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-223","title":"Digital mapping techniques '01; workshop proceedings; May 20-23, 2001, Tuscaloosa, Alabama","language":"ENGLISH","doi":"10.3133/ofr01223","usgsCitation":"Soller, D.R., 2001, Digital mapping techniques '01; workshop proceedings; May 20-23, 2001, Tuscaloosa, Alabama: U.S. Geological Survey Open-File Report 2001-223, 248 p., https://doi.org/10.3133/ofr01223.","productDescription":"248 p.","costCenters":[],"links":[{"id":2760,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-223/ ","linkFileType":{"id":5,"text":"html"}},{"id":160767,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0223/report-thumb.jpg"},{"id":59805,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0223/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a96e4b07f02db65ac2d","contributors":{"authors":[{"text":"Soller, David R. 0000-0001-6177-8332 drsoller@usgs.gov","orcid":"https://orcid.org/0000-0001-6177-8332","contributorId":2700,"corporation":false,"usgs":true,"family":"Soller","given":"David","email":"drsoller@usgs.gov","middleInitial":"R.","affiliations":[{"id":5061,"text":"National Cooperative Geologic Mapping and Landslide Hazards","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":206366,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31558,"text":"ofr01366 - 2001 - Volcano hazards in the San Salvador region, El Salvador","interactions":[],"lastModifiedDate":"2013-11-22T13:22:48","indexId":"ofr01366","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-366","title":"Volcano hazards in the San Salvador region, El Salvador","docAbstract":"<p>San Salvador volcano is one of many volcanoes along the volcanic arc in El Salvador \n(figure 1). This volcano, having a volume of about \n110 cubic kilometers, towers above San Salvador, \nthe country’s capital and largest city. The city has a \npopulation of approximately 2 million, and a \npopulation density of about 2100 people per square \nkilometer. The city of San Salvador and other \ncommunities have gradually encroached onto the \nlower flanks of the volcano, increasing the risk that \neven small events may have serious societal \nconsequences. San Salvador volcano has not \nerupted for more than 80 years, but it has a long \nhistory of repeated, and sometimes violent, eruptions. The volcano is composed of remnants of \nmultiple eruptive centers, and these remnants are \ncommonly referred to by several names. The \ncentral part of the volcano, which contains a large \ncircular crater, is known as El Boquerón, and it \nrises to an altitude of about 1890 meters. El \nPicacho, the prominent peak of highest elevation \n(1960 meters altitude) to the northeast of the crater, \nand El Jabali, the peak to the northwest of the \ncrater, represent remnants of an older, larger \nedifice. The volcano has erupted several times \nduring the past 70,000 years from vents central to \nthe volcano as well as from smaller vents and \nfissures on its flanks [1] (numerals in brackets refer \nto end notes in the report). In addition, several \nsmall cinder cones and explosion craters are \nlocated within 10 kilometers of the volcano. Since \nabout 1200 A.D., eruptions have occurred almost \nexclusively along, or a few kilometers beyond, the \nnorthwest flank of the volcano, and have consisted \nprimarily of small explosions and emplacement of \nlava flows. However, San Salvador volcano has \nerupted violently and explosively in the past, even \nas recently as 800 years ago. When such eruptions \noccur again, substantial population and infrastructure will be at risk.</p>\n<br/>\n<p>Volcanic eruptions are not the only events that \npresent a risk to local communities. Another \nconcern is a landslide and an associated debris flow \n(a watery flow of mud, rock, and debris--also \nknown as a lahar) that could occur during periods \nof no volcanic activity. An event of this type \noccurred in 1998 at Casita volcano in Nicaragua \nwhen extremely heavy rainfall from Hurricane \nMitch triggered a landslide that moved down slope \nand transformed into a rapidly moving debris flow \nthat destroyed two villages and killed more than \n2000 people. Historical landslides up to a few \nhundred thousand cubic meters in volume have \nbeen triggered on San Salvador volcano by torrential rainstorms and earthquakes, and some have \ntransformed into debris flows that have inundated \npopulated areas down stream. Destructive rainfall- and earthquake-triggered landslides and debris \nflows on or near San Salvador volcano in September 1982 and January 2001 demonstrate that such \nmass movements in El Salvador have also been \nlethal.</p>\n<br/>\n<p>This report describes the kinds of hazardous \nevents that occur at volcanoes in general and the \nkinds of hazardous geologic events that have \noccurred at San Salvador volcano in the past. The \naccompanying volcano-hazards-zonation maps \nshow areas that are likely to be at risk when \nhazardous events occur again.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Vancouver, WA","doi":"10.3133/ofr01366","usgsCitation":"Major, J., Schilling, S., Sofield, D., Escobar, C., and Pullinger, C., 2001, Volcano hazards in the San Salvador region, El Salvador: U.S. Geological Survey Open-File Report 2001-366, Report: 23 p.; 2 Plates: 32.68 x 25.10 inches and 34.01 x 34.01 inches, https://doi.org/10.3133/ofr01366.","productDescription":"Report: 23 p.; 2 Plates: 32.68 x 25.10 inches and 34.01 x 34.01 inches","numberOfPages":"24","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":279588,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01366.jpg"},{"id":2766,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0366/","linkFileType":{"id":5,"text":"html"}},{"id":279585,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0366/pdf/of2001-0366.pdf"},{"id":279587,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0366/pdf/of2001-0366_plate2.pdf"},{"id":279586,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0366/pdf/of2001-0366_plate1.pdf"}],"scale":"50000","projection":"Universal Transverse Mercator projection","datum":"North American 1927","country":"El Salvador","city":"San Salvador","otherGeospatial":"El Jabali;El Picacho;San Salvador Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -90.1603,13.0262 ], [ -90.1603,14.4517 ], [ -87.5498,14.4517 ], [ -87.5498,13.0262 ], [ -90.1603,13.0262 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0de4b07f02db5fd7b3","contributors":{"authors":[{"text":"Major, J. 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