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This inventory was originally created by Xu and others (2014) describing the landslides triggered by the M 6.2 Sichuan-Yunnan-Guizhou Region, China earthquake, also known as the Ludian earthquake, that occurred on 3 August 2014 at 08:30:13 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...
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This inventory describes the landslides triggered by the the M6.6 Norcia, Italy earthquake that occurred on 2016-10-30 at 6:40:18 UTC. The inventory comes from the Italian Catalogue of Earthquake-Induced Ground Effects (Italian acronym CEDIT) by Martino and others (2014), which contains inventories from multiple earthquakes. To obtain the most up to date version of the entire, original catalog along with more details about its compilation, please visit the CEDIT webpage on the website of the Centre for Research (CERI) of the Department of Earth Sciences in the Sapienza University of Rome: http://www.ceri.uniroma1.it/index.php/web-gis/cedit/. Care should be taken when comparing with other inventories because different...
The Atlas of ShakeMaps (~14,100 earthquakes, 1900-2020) provides a consistent and quantitative description of the distribution of shaking intensity for calibrating earthquake loss estimation methodologies, like those used in the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) system. Version 4 of the Atlas includes a vastly expanded compilation of ShakeMaps for consequential and widely felt earthquakes using updated ShakeMap (Version 4) software. For each event, we have attempted to gather available macroseismic, recorded ground motions and finite fault inputs. AtlasCat is the companion catalog to Atlas V4. For each event in the Atlas, AtlasCat contains population exposure to each intensity level,...
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The comma-separated values (CSV) files below provide maximum and minimum SS, S1, and PGA values for each of the 50 states (plus Washington, D.C.), 3,222 counties, and most* of the 32,236 ZIP codes in the U.S. Geographic coordinates of these maxima and minima are also provided. The values and coordinates are based on the earthquake ground motion maps in, equivalently, the 2009 NEHRP Recommended Seismic Provisions, the 2010 ASCE-7 Standard, and the 2012 International Building Code.
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This dataset consists of the processed ground motions from 96 earthquake rupture scenarios for M7 earthquakes on the Salt Lake City segment of the Wasatch fault. Details about the simulation method, ground motion variability and sensitivity of the ground motions to the kinematic rupture parameters are described in the accompanying manuscript. Simulated data is distributed as 5-percent damped response spectral accelerations that support the conclusions of the accompanying manuscript.
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Seismicity catalogs, gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 1996 National Seismic Hazard Model for the Conterminous U.S. Seismicity catalogs are available for the western U.S. (in Mw) and central and eastern U.S. (in mb). Probabilistic seismic hazard data and maps of the conterminous U.S. for peak ground acceleration (PGA) and 0.1, 0.2, 0.3, 0.5, 1.0 and 2.0 second spectral acceleration at probability levels of 2 percent in 50 years (annual probability of 0.000404), 5 percent in 50 years (annual probability of 0.001026), and 10 percent in 50 years (annual probability of 0.0021), assuming firm rock soil conditions at 760 m/s, are...
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The dataset comprises information about the magnitudes, distances and periods of ground motion measurements from an analysis of earthquake ground motions from induced events in Oklahoma and Kansas. The data set also includes ground motion residuals from comparing earthquake ground shaking with commonly used models for predicting ground motions in the U.S.
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The Earthquake Notification Service (ENS) is a free service that sends you automated notifications to your email or cell phone when earthquakes happen.
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The Global Seismographic Network (GSN) is a permanent digital network of state-of-the-art seismological and geophysical sensors connected by a telecommunications network, serving as a multi-use scientific facility and societal resource for monitoring, research, and education. Formed in partnership among the USGS, the National Science Foundation (NSF) and the Incorporated Research Institutions for Seismology (IRIS), the GSN provides near-uniform, worldwide monitoring of the Earth, with over 150 modern seismic stations distributed globally. This entry focuses exclusively on the GSN stations are operated by the USGS Albuquerque Seismological Laboratory (USGS GSN). It does not include any stations operated by the IDA...
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This data release contains point clouds obtained from three terrestrial laser scanner (TLS) surveys of a hillslope burned by the 2016 Fish Fire in the San Gabriel Mountains, CA, USA. The TLS surveys were completed with a Leica ScanStation C10. All point data are in local coordinates and the units are in meters. The first survey was made on 19 November 2016 prior to the first post-wildfire rainstorm. The second survey was performed on 5 January 2017. Two runoff-generating rainstorms occurred between the first and second surveys. The two rainstorms had peak fifteen-minute average rainfall intensities of 27 mm/h and 10 mm/h, respectively. The third survey was performed on 22 February 2017, following five additional...
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Subduction zones are home to the most seismically active faults on the planet. The shallow megathrust interface of subduction zones host our largest earthquakes, and are the only faults capable of M9+ ruptures. Despite these facts, our knowledge of subduction zone geometry - which likely plays a key role in determining the spatial extent and ultimately the size of subduction zone earthquakes - is incomplete. Here we calculate the three- dimensional geometries of all active global subduction zones. The resulting model - Slab2 - provides for the first time a comprehensive geometrical analysis of all known slabs in unprecedented detail.
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Subduction zones are home to the most seismically active faults on the planet. The shallow megathrust interface of subduction zones host our largest earthquakes, and are the only faults capable of M9+ ruptures. Despite these facts, our knowledge of subduction zone geometry - which likely plays a key role in determining the spatial extent and ultimately the size of subduction zone earthquakes - is incomplete. Here we calculate the three- dimensional geometries of all active global subduction zones. The resulting model - Slab2 - provides for the first time a comprehensive geometrical analysis of all known slabs in unprecedented detail.
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Landslides are damaging and deadly, and they occur in every U.S. state. However, our current ability to understand landslide hazards at the national scale is limited, in part because spatial data on landslide occurrence across the U.S. varies greatly in quality, accessibility, and extent. Landslide inventories are typically collected and maintained by different agencies and institutions, usually within specific jurisdictional boundaries, and often with varied objectives and information attributes or even in disparate formats. The purpose of this data release is to provide an openly accessible, centralized map of existing information on landslide occurrence across the entire U.S. The data release includes digital...
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This inventory describes the landslides triggered by the M6.7 central Italy earthquake that occurred on 1915-01-13 at 6:52:42 UTC. The inventory comes from the Italian Catalogue of Earthquake-Induced Ground Effects (Italian acronym CEDIT) by Martino and others (2014), which contains inventories from multiple earthquakes. To obtain the most up to date version of the entire, original catalog along with more details about its compilation, please visit the CEDIT webpage on the website of the Centre for Research (CERI) of the Department of Earth Sciences in the Sapienza University of Rome: http://www.ceri.uniroma1.it/index.php/web-gis/cedit/. Care should be taken when comparing with other inventories because different...
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Seismicity catalogs, gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2016 One-Year Seismic Hazard Forecast for the Central and Eastern U.S. from Induced and Natural Earthquakes. Probabilistic seismic hazard data and maps of the conterminous U.S. for peak ground acceleration (PGA) and 0.2 and 1.0 second spectral acceleration at a probability level of 1 percent in 1 year (annual probability of 0.0101), assuming firm rock soil conditions at 760 m/s, are available. Hazard was calculated on a 0.05 degree by 0.05 degree grid, defined by a bounding box encompassing the central and eastern U.S. (-115 to -65 degrees longitude west, 24.6 to 50 degrees...
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Gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2012 American Samoa and Neighboring South Pacific Islands Seismic Hazard Model. Probabilistic seismic hazard data and maps of American Samoa and Neighboring South Pacific Islands for peak ground acceleration (PGA) and 0.2 and 1.0 second spectral acceleration at probability levels of 2 percent in 50 years (annual probability of 0.000404) and 10 percent in 50 years (annual probability of 0.0021), assuming firm rock soil conditions at 760 m/s, are available. Additionally, seismicity catalogs, deaggregation data, deterministic hazard data, and site-specific hazard data are available. Development...
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Gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2007 Alaska Seismic Hazard Model. Time-independent probabilistic seismic hazard data and maps of Alaska and the Aleutians for peak ground acceleration (PGA) and 0.1, 0.2, 0.3, 0.5, 1.0 and 2.0 second spectral acceleration at probability levels of 2 percent in 50 years (annual probability of 0.000404), 5 percent in 50 years (annual probability of 0.001026), and 10 percent in 50 years (annual probability of 0.0021) assuming firm rock soil conditions at 760 m/s are available. Development of the 2007 Alaska Seismic Hazard Model is documented in the USGS Open-File Report 2007-1043 (https://pubs.usgs.gov/of/2007/1043/)....
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This inventory was originally created by Harp and Keefer (1990) describing the landslides triggered by the M 6.7 Coalinga, California earthquake that occurred on 2 May 1983 at 23:42:38 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...
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This inventory was originally created by Montgomery and others (2019) describing the landslides triggered by the M 7.1 Mexico City earthquake that occurred on 19 September 2017 at 18:14:38 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...
map background search result map search result map Harp and Keefer (1990) Database of earthquake ground motions from 3-D simulations on the Salt Lake City of the Wasatch fault zone, Utah Regional Minimum and Maximum Seismic Design Map Values Xu and others (2015) Slab2 - A Comprehensive Subduction Zone Geometry Model, Muertos Trough Region Slab2 - A Comprehensive Subduction Zone Geometry Model, Philippines Region Las Lomas Hillside Lidar Martino and others (2016) - M6.6 Norcia, Italy, 2016 Martino and others (2014) - M6.7 Central Italy, 1915 Data for ground motions from induced earthquakes in Oklahoma and Kansas Data Release for the 1996 National Seismic Hazard Model for the Conterminous U.S. Data Release for the 2016 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes Montgomery and others (2019) Landslide Inventories across the United States version 2 Las Lomas Hillside Lidar Xu and others (2015) Martino and others (2014) - M6.7 Central Italy, 1915 Harp and Keefer (1990) Montgomery and others (2019) Database of earthquake ground motions from 3-D simulations on the Salt Lake City of the Wasatch fault zone, Utah Data for ground motions from induced earthquakes in Oklahoma and Kansas Slab2 - A Comprehensive Subduction Zone Geometry Model, Muertos Trough Region Slab2 - A Comprehensive Subduction Zone Geometry Model, Philippines Region Data Release for the 2016 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes Data Release for the 1996 National Seismic Hazard Model for the Conterminous U.S. Regional Minimum and Maximum Seismic Design Map Values Landslide Inventories across the United States version 2