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Subaerial landslides at the head of Barry Arm Fjord in southern Alaska could generate tsunamis (if they rapidly failed into the Fjord) and are therefore a potential threat to people, marine interests, and infrastructure throughout the Prince William Sound region. Knowledge of ongoing landslide movement is essential to understanding the threat posed by the landslides. Because of the landslides' remote location, field-based ground monitoring is challenging. Alternatively, periodic acquisition and interferometric processing of satellite-based synthetic aperture radar data provide an accurate means to remotely monitor landslide movement. Interferometric synthetic aperture radar (InSAR) uses two Synthetic Aperture...
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Chalk Cliffs, located 8 miles southwest of Buena Vista, Colorado, is one of the most active debris-flow areas in the state (U.S. Geological Survey). This "Child item" page includes videos of debris flows captured by one of the high-definition cameras at the monitoring site in Chalk Cliffs, CO. This camera (Wide-angle camera) is located near Station 1 on the opposite side of the basin with a broad view of the channel. The attached figure "station_and_camera_locations.png" provides an overview figure with the location of the three cameras and three stations along the channel. Video recording for all cameras is triggered using a rainfall threshold, derived from rainfall measurements from a rain gauge (Michel et al.,...
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These data are a summary of modeled exposure of various lifeline infrastructure linear features and facilities (transportation, water supply and wastewater, oil and gas, electric power, and telecommunications) to potential hazards resulting from the HayWired earthquake scenario, a magnitude 7.0 earthquake occurring on the Hayward Fault on April 18, 2018, with an epicenter in the city of Oakland, CA. Existing hazard data (surface offset, ground shaking (mainshock and aftershocks), landslide, liquefaction, and fire following earthquake) were looked at alone and in combination with each other relative to the lifeline infrastructure linear features and facilities to provide estimates of potential exposure to various...
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This data set provides a polygon shapefile delineating relatively large, slow-moving (4-17 cm/year in the radar line-of-sight direction) landslides in the continental U.S. western coastal states (California, Oregon, and Washington). The polygons also are provided in a Google Earth .kmz file. Delineated landslides were identified from displacement signals captured by InSAR (Interferometric Synthetic Aperture Radar) interferograms of ALOS PALSAR (Advanced Land Observing Satellite; Phased Array type L-band Synthetic Aperture Radar) images between 2007 and 2011, and ALOS-2 PALSAR-2 images between 2015 and 2019. The ALOS PALSAR images utilized cover the three states entirely; the ALOS-2 PALSAR images utilized cover primarily...
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This folder contains landslide inventories of the M 6.3 Lefkada, Greece earthquake, which occurred on 2003-08-14 at 05:14:54 UTC. The hypocenter was located at 39.160°N 20.605°E at a depth of 10.0 km. For further information see the link to the full USGS event page for this earthquake under “Related External Resources” below. With the exception of the data from USGS sources, the inventory data and associated metadata were not acquired by the U.S. Geological Survey (USGS) and thus have not been reviewed for accuracy and completeness by the USGS. They are presented as part of this data series for convenience of the user only, as part of an effort to make published ground-failure inventories more accessible from...
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Structure-from-Motion (SfM) point clouds were created from images collected using a remotely piloted unoccupied aerial system over the bluffs of the eastern shore of Lake Michigan in St. Joseph, a urban residential area. The digital imagery was collected with the internal camera of a DJI Phantom 3 PRO for the July 8, 2019 data and DJI Phantom 4 PRO for the July 13, 2021 data that was operated by the University of Toledo. The images cover an extent between the intersection of Lakeshore Dr. with Lakeshore Road to the north, and South Lakeshore Dr. to the south. The images were collected in .jpg format and include Exif metadata with GPS date, time, and latitude and longitude, and other fields. Point clouds were created...
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Structure-from-Motion (SfM) point clouds were created from images collected using a remotely piloted unoccupied aerial system over the bluffs of the eastern shore of Lake Michigan in Miami Park rural residential area. The digital imagery was collected with the internal camera of a DJI Phantom 4 PRO PPK that was operated by the University of Toledo, on July 19, 2021. The images cover an extent between south of Lakestone Dr. to the north, and south of A St. to the south. The images were collected in .jpg format and include Exif metadata with GPS date, time, and latitude and longitude, copyright, keywords, and other fields. Point clouds were created from the collected images using SfM photogrammetry software. The point...
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Chalk Cliffs, located 8 miles southwest of Buena Vista, Colorado, is one of the most active debris-flow areas in the state (U.S. Geological Survey). This "Child item" page includes videos of floods captured by one of the high-definition cameras at the monitoring site in Chalk Cliffs, CO. This camera (Firehose Camera) is located near the bottom of the channel. The attached figure "station_and_camera_locations.png" provides an overview figure with the location of the four cameras and three stations along the channel. Video recording for all cameras is triggered using a rainfall threshold (Michel et al., 2019). The complete videos for all the cameras are downloaded manually during site visits. More detailed information...
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This inventory was originally created by Gorum and others (2014) describing the landslides triggered by a sequence of earthquakes, with the largest being the M 6.2 17 km N of Puerto Aisen, Chile earthquake that occurred on 21 April 2007 at 23:45:56 UTC. Care should be taken when comparing with other inventories because different authors use different mapping techniques. This inventory includes landslides triggered by a sequence of earthquakes rather than a single mainshock. Please check the author methods summary and the original data source for more information on these details and to confirm the viability of this inventory for your specific use. With the exception of the data from USGS sources, the inventory...
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This inventory was originally created by Xu and others (2014) describing the landslides triggered by the M 5.9 Gansu, China earthquake, also known as the Minxian - Zhangxian earthquake, that occurred on 21 July 2013 at 23:45:56 UTC. Care should be taken when comparing with other inventories because different authors use different mapping techniques. This inventory also could be associated with other earthquakes such as aftershocks or triggered events. Please check the author methods summary and the original data source for more information on these details and to confirm the viability of this inventory for your specific use. With the exception of the data from USGS sources, the inventory data and associated metadata...
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This inventory was originally created by the Ministerio de Medio Ambiente y Recursos Naturales, El Salvador (2001) describing the landslides triggered by the M 7.7 San Miguel, El Salvador earthquake that occurred on 13 January 2001 at 17:33:32 UTC. Care should be taken when comparing with other inventories because different authors use different mapping techniques. This inventory also could be associated with other earthquakes such as aftershocks or triggered events. Please check the author methods summary and the original data source for more information on these details and to confirm the viability of this inventory for your specific use. With the exception of the data from USGS sources, the inventory data and...
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This inventory was originally created by Zhao (2021) describing the landslides triggered by the M 7.5 Palu, Indonesia earthquake that occurred on 28 September 2018 at 10:02:45 UTC. Care should be taken when comparing with other inventories because different authors use different mapping techniques. This inventory also could be associated with other earthquakes such as aftershocks or triggered events. Please check the author methods summary and the original data source for more information on these details and to confirm the viability of this inventory for your specific use. With the exception of the data from USGS sources, the inventory data and associated metadata were not acquired by the U.S. Geological Survey...
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The data include soil texture, soil-water, and estimated soil strength properties for soil map units and from geotechnical investigations of landslide areas affecting highways in the municipalities of Lares, Naranjito, and Utuado, Puerto Rico. The map units are derived from published soil mapping (https://websoilsurvey.sc.egov.usda.gov/app/) and have been grouped by municipality, Unified Soil Classification System symbol, and order-of-magnitude ranges of hydraulic conductivity to create generalized map units for assigning soil-water parameters and soil-strength parameters. Each group (generalized unit) includes one or more soil map units. The groups are numbered sequentially from one (1) for each municipality with...
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Album caption: Flow failure down a hillside slope on the Nunez Ranch 4 miles (6.4 km) east of Half Moon Bay. Note the man standing at the base of the deposited debris and a second man standing on the lower edge of the cavity at the top of the slide. Additional incipient flow failures with much smaller movements also occurred on the convex hill to the left of the principal landslide. Photograph previously published in Lawson and others (1908, pl. 133B) with caption "Earth-flow 4 miles east of Half Moon Bay." San Mateo County, California. 1906. Published as figure 22 in U. S. Geological Survey Professional paper 993. 1978. (Not available from U.S.G.S. Photo Library. Photograph by R. A. Anderson, J.C. Branner...
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Album caption: Blackfeet Indian Reservation. "Quartzite gravel," possibly pre- Wisconsin glacial drift, west end of top of Landslide Butte, NW1/4, Sec. 3, T. 36 N., R. 8 W. Part indicated by hammer has a clay matrix and resembles glacial till. No striated pebbles found. Blackfoot quadrangle. Glacier County, Montana. September 5, 1912.
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Kaiparowits Coal Basin, Utah. Landslide debris just north of Fifty-Mile Point looking west near the south end of Fifty-Mile Mountain. Landslide and debris- flow material has moved toward the viewer from near the base of the highest cliffs onto the intermediate bench of Dakota Sandstone as a sheet slide and locally has flowed down over Morrison-Entrada cliffs as a lobate debris slide. Boulders in debris slide are as large as 40 feet. Debris flow formed at lower end. 1976. Portion of figure 9, U.S. Geological Survey Bulletin 1601.
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San Fernando Earthquake, February 9, 1971, 6:01am PST. (Roll 10, Frame 4). Oblique air view northeast into Pacoima Canyon, of housing development northeast of Shinsaw Ave., and Hubbard Street. (Far northeast corner of Sylmar Area). Many homes in this area were condemned due to damage during the quake. Hazy portion of picture is due to dust clouds produced by landslides which continue for several days after quake. Feb 11, 1971.
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Album caption: Cape Fortunes (False Cape) landslide, one of the largest landslides triggered by the 1906 shock. View toward toe showing extension of toe into Pacific Ocean in background. Similar photograph previously published by Lawson and others (1908, pl. 127B) with caption "Earth-slump at Cape Fortunas, Humboldt County." Humboldt County, California. 1906. Published as figure 67-B in U. S. Geological Survey. Professional paper 993. 1978. (Not available from U. S. G. S. Photo Library. Photograph by A.S. Eakle, courtesy of The Bancroft Library, University of California, Berkeley.)
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Municipal crews attempt to clear streets and drainage systems of water, mud and debris between record-breaking rains in late July/early August 2006. El Paso County was declared a Federal Disaster Area following rain and thunderstorms which caused mud slides. (Photograph by Robert J. Alvey/FEMA)


map background search result map search result map "Quartzite gravel," possibly pre- Wisconsin glacial drift, west end of top of Landslide Butte. Blackfeet Indian Reservation. Montana.1912. Landslide and other damage at lower Van Norman Dam. San Fernando, California, Earthquake February 1971. 1971. Flow failure down a hillside slope on the Nunez Ranch, east of Half Moon Bay. San Mateo County, California. 1906. Cape Fortunes (False Cape) landslide,  Humboldt County, California. 1906. El Paso Landslide. El Paso County, Texas. 2006. Gorum and others (2014) 2003-08-14 Lefkada, Greece M 6.3 Ministerio de Medio Ambiente y Recursos Naturales, El Salvador (2001) Xu and others (2014) Results of individual lifeline exposure to hazards resulting from the HayWired scenario earthquake sequence for counties and cities in the San Francisco Bay area, California Interferometric synthetic aperture radar data from 2020 for landslides at Barry Arm Fjord, Alaska Flood Video Files for Firehose Camera, Chalk Cliffs, Colorado, USA, 2017 Slow-moving landslides near the U.S. West Coast mapped from ALOS and ALOS-2 InSAR, 2007-2019 Debris Flow Video Files for Wide Angle Camera (Station 1), Chalk Cliffs, Colorado, USA, 2016 Zhao (2021) Structure-from-Motion point clouds from Miami Park surveys, MI, July 19, 2021 Structure-from-Motion point clouds from St. Joseph surveys, MI, July 13, 2021 Engineering Soil Classification and Geotechnical Measurements in Lares, Naranjito, and Utuado, Puerto Rico Flood Video Files for Firehose Camera, Chalk Cliffs, Colorado, USA, 2017 Debris Flow Video Files for Wide Angle Camera (Station 1), Chalk Cliffs, Colorado, USA, 2016 Structure-from-Motion point clouds from Miami Park surveys, MI, July 19, 2021 Structure-from-Motion point clouds from St. Joseph surveys, MI, July 13, 2021 Interferometric synthetic aperture radar data from 2020 for landslides at Barry Arm Fjord, Alaska Landslide and other damage at lower Van Norman Dam. San Fernando, California, Earthquake February 1971. 1971. Xu and others (2014) 2003-08-14 Lefkada, Greece M 6.3 Ministerio de Medio Ambiente y Recursos Naturales, El Salvador (2001) Cape Fortunes (False Cape) landslide,  Humboldt County, California. 1906. Results of individual lifeline exposure to hazards resulting from the HayWired scenario earthquake sequence for counties and cities in the San Francisco Bay area, California "Quartzite gravel," possibly pre- Wisconsin glacial drift, west end of top of Landslide Butte. Blackfeet Indian Reservation. Montana.1912. El Paso Landslide. El Paso County, Texas. 2006. Slow-moving landslides near the U.S. West Coast mapped from ALOS and ALOS-2 InSAR, 2007-2019