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This data release provides a map of the time-averaged shear-wave velocity in the upper 30 m (Vs30) for California using the method described by Thompson and others (2014). There are two adjustments to the algorithm described by Thompson and others (2014), which is built on the geology-based Vs30 map by Wills and Clahan (2006). In this data release, we use the Wills and others (2015) updated geology-based Vs30 map. The second change is that we have adjusted the kriging procedure so that measured Vs30 values do not affect the predictions across distinctly different geologic units. July 2022 Update (ver. 2.0) Resolution is now 3 arcseconds instead of 7.5 arcseconds Fixed a code error that prevented some of the Vs30...
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This inventory was originally created by Montgomery and others (2020) 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....
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Airborne magnetic gradiometry data along the tie and flight lines are provided here in CSV (Comma Separated Value) format along with a GeoTIFF grid of the total magnetic intensity (TMI) in nanoTeslas. Along with the data provided on this child page, a report in PDF format by the airborne contractor that describes the technical details of the data collection, reduction and processing procedures and a zip file that contains the contractor's deliverable products (Geosoft databases and grids) for the magnetic and radiometric survey is available on the parent page (https://doi.org/10.5066/P9TK8KMM).
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Alexander County, Ballard County, Bollinger County, Cape Girardeau, Cape Girardeau County, All tags...
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This inventory was originally created by Gnyawali and Adhikari (2016) describing the landslides triggered by the M 7.8 Nepal earthquake that occurred on 25 April 2015 at 06:11:25 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 data and associated metadata were not acquired by the U.S. Geological...
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This inventory was originally created by Zhang and others (2016) describing the landslides triggered by the M 7.8 Nepal earthquake that occurred on 25 April 2015 at 06:11:25 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 data and associated metadata were not acquired by the U.S. Geological Survey...
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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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This inventory was originally created by Ruiz and others (2020) describing the landslides triggered by the M 5.3 Capellades, Costa Rica earthquake which occurred on 2016-12-01 at 00:25:21 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 Valagussa and others (2021) describing the landslides triggered by the M 7.8 Nepal earthquake that occurred on 25 April 2015 at 06:11:25 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 data and associated metadata were not acquired by the U.S. Geological Survey...
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This inventory was originally created by Gorum and others (2014) describing the landslides triggered by the M 7.9 Denali, Alaska earthquake that occurred on 3 November 2002 at 22:12:41 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 data and associated metadata were not acquired by the U.S. Geological...
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This inventory describes the landslides triggered by the the M6.3 Central Italy earthquake that occurred on 2009-04-06 at 1:32:39 UTC, also referred to as L'Aquila or the Aquilano earthquake. 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...
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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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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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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.
map background search result map search result map Gorum and others (2014) Zhang and others (2016) Gnyawali and others (2016) Database of earthquake ground motions from 3-D simulations on the Salt Lake City of the Wasatch fault zone, Utah Xu and others (2015) An Updated Vs30 Map for California with Geologic and Topographic Constraints (ver. 2.0, July 2022) Slab2 - A Comprehensive Subduction Zone Geometry Model, Hindu Kush Region Slab2 - A Comprehensive Subduction Zone Geometry Model, Makran Region Slab2 - A Comprehensive Subduction Zone Geometry Model, Philippines Region Martino and others (2016) - M6.6 Norcia, Italy, 2016 Martino and others (2014) - M6.3 Central Italy, 2009 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. Montgomery and others (2020) Ruiz and others (2020) Valagussa and others (2021) Airborne magnetic flight line data over parts of southeast Missouri, southern Illinois and western Kentucky - The Gap survey, 2021 Ruiz and others (2020) Montgomery and others (2020) Xu and others (2015) Martino and others (2014) - M6.3 Central Italy, 2009 Database of earthquake ground motions from 3-D simulations on the Salt Lake City of the Wasatch fault zone, Utah Airborne magnetic flight line data over parts of southeast Missouri, southern Illinois and western Kentucky - The Gap survey, 2021 Gnyawali and others (2016) Zhang and others (2016) Valagussa and others (2021) Gorum and others (2014) Data for ground motions from induced earthquakes in Oklahoma and Kansas Slab2 - A Comprehensive Subduction Zone Geometry Model, Hindu Kush Region An Updated Vs30 Map for California with Geologic and Topographic Constraints (ver. 2.0, July 2022) Slab2 - A Comprehensive Subduction Zone Geometry Model, Makran Region Slab2 - A Comprehensive Subduction Zone Geometry Model, Philippines Region Data Release for the 1996 National Seismic Hazard Model for the Conterminous U.S.