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Filters Date Range Past year (18) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Types Map Service (6) OGC WFS Layer (6) OGC WMS Layer (6) OGC WMS Service (4) Downloadable (2) Shapefile (2) Contacts U.S. Geological Survey - ScienceBase Earthquake Hazards Program Allison M Shumway GHSC Data Steward Oliver S Boyd More... Categories Data (10) Tag Types Theme (29) USGS Scientific Topic Keyword (30) Place (29) Harvest Set (30) Tag Schemes USGS Thesaurus (22) Geologic Hazards Science Center (4) Geographic Names Information System (GNIS) (21) Common geographic areas (4) None (2) ISO 19115 Topic Category (4) Geographic Names Information System (1) View Results as: JSON ATOM CSV

Crustal architecture of the transtensional Warm Springs Valley fault zone, northern Walker Lane This data release contains field data for two P-wave seismic reflection profiles acquired across the Warm Springs Valley fault zone, part of the Northern Walker Lane, NV. The dataset consists of high-resolution seismic reflection field records in .segy format, shot coordinates in .csv format, and observers’ logs in .pdf format. The high-resolution seismic profiles are approximately 4 km long. The northern profile (Warm Springs Line 1) is oblique to a prominent fault bounded ridge. The southern profile (Warm Springs Line 2) crosses the northern end of Warm Springs Valley and is nearly co-located with COCORP profile NV-08. To obtain the seismic profiles, we used a 230 kg accelerated weight drop source and a nominal... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fault, Geophysics, Hazards, Nevada, Seismic, All tags... USGS Science Data Catalog (SDC), Walker Lane, Warm Springs Valley, Fewer tags Data Release for the 2002 National Seismic Hazard Model for the Conterminous U.S. Seismicity catalogs, gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2002 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) and 10 percent in 50 years (annual probability of 0.0021), assuming firm rock soil conditions at 760 m/s, are available. Hazard was calculated on a 0.1 degree by 0.1... Tags: Conterminous U.S., EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Geophysics, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), conterminous U.S., ground motion, hazard curve, hazard map, spectral period, Fewer tags Data Release for the 2014 National Seismic Hazard Model for the Conterminous U.S. Seismicity catalogs, GIS shapefiles, gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2014 National Seismic Hazard Model for the Conterminous U.S. 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 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. Hazard was calculated on a 0.05 degree by 0.05 degree grid, defined by a bounding box encompassing the conterminous U.S. (-125 to -65 degrees longitude... Tags: Conterminous U.S., EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Geophysics, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), conterminous U.S., ground motion, hazard curve, hazard map, spectral period, Fewer tags Atlantic and Gulf Coastal Plains Sediment Thickness (v220517) This dataset of the elevation of basement and thickness of sediment above the syn- and post-rift unconformity (sediments above being generally Late Cretaceous and younger) was constructed for application to site response models in earthquake hazard analyses. Sediment thickness in meters is provided in zipped csv format on a 0.01-degree grid, and sediment thickness and basement elevation in meters relative to mean sea level are provided in GeoTIFF format on a 1-km grid. Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... Seismology, Structural Geology, USGS, USGS Science Data Catalog (SDC), United States, earthquake occurrences, earthquakes, geoscientificInformation, hazards, maps and atlases, sediment thickness, Fewer tags Data release for the lower seismogenic depth model of western U.S. earthquakes A model of the lower seismogenic depth distribution of earthquakes in the western United States was developed to support models for seismic hazard assessment that will be included in the 2023 USGS National Seismic Hazard Model. This data release presents a recalibration using the hypocentral depths of events M>1 from the Advanced National Seismic System Comprehensive Earthquake Catalog from 1980 to 2021. For higher precision and better resolution in the model, the data were supplemented with seismicity from southern California that was relocated by Hauksson and others (2012). Along the San Andreas Fault, the deepest seismogenic depths are located at 23 km around the Cholame segment, whereas the shallowest depths... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Geophysics, Seismology, USGS Science Data Catalog (SDC), United States, earthquake occurrences, All tags... earthquakes, hazards, seismology, Fewer tags Data Release for the 1999 Alaska Seismic Hazard Model Gridded ground motion data and mapped gridded ground motion values are available for the 1999 Alaska Seismic Hazard Model. Probabilistic seismic hazard data and maps of Alaska and the Aleutians for peak ground acceleration (PGA) and 0.2, 0.3, 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 probably of 0.0021), assuming firm rock soil conditions at 760 m/s, are available. Development of the 1999 Alaska Seismic Hazard Model is documented in the USGS Open-File Report 99-36 (https://doi.org/10.3133/ofr9936). This dataset is considered a legacy dataset. The original dataset was released at the time of publication... Tags: Alaska, Alaska, EHP, Earthquake Hazards Program, GHSC, All tags... Geologic Hazards Science Center, Geophysics, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), ground motion, hazard curve, hazard map, spectral period, Fewer tags 2016 Mw 6.0 Petermann Ranges earthquake, Australia: Pre- and post-earthquake digital elevation models We generated digital elevation models (DEMs) using pre- and post-event in-track stereo 0.5 m resolution panchromatic Worldview 1 and 2 images (©2019, DigitalGlobe) using the Surface Extraction from TIN-based Searchspace Minimization (SETSM) software [Noh and Howat, 2015] running on the University of Iowa Argon supercomputer (Table S1). The post-event DEMs exhibit along-track striping artifacts common to the Worldview 2 sensor. While de-striping tools, for example within NASAs Ames Stereo Pipeline [Shean et al., 2016], are commonly applied to resolve this issue, a de-striping correction has not been developed for this latitude. Noh, M.-J., and I. M. Howat (2015), Automated stereo-photogrammetric DEM generation... Tags: DSM, EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Geomorphology, Geophysics, Petermann Ranges, Australia, USGS, USGS Science Data Catalog (SDC), digital surface models, earth science, earthquake hazard, Fewer tags Earthquake Catalogs supporting manuscript "Afterslip Enhanced Aftershock Activity During the 2017 Earthquake Sequence Near Sulphur Peak, Idaho" This ScienceBase entry contains three seismic catalogs supporting and described by the manuscript - Koper, K. D., Pankow, K. L., Pechmann, J. C., Hale, J. M., Burlacu, R., Yeck, W. L., et al (2018). Afterslip Enhanced Aftershock Activity During the 2017 Earthquake Sequence Near Sulphur Peak, Idaho. Geophysical Research Letters, 45. https://doi.org/10.1029/2018GL078196. These are included in three separate catalog files: the University of Utah Seismograph Stations (UUSS) absolute locations, the MLOC relocations, and the GrowClust relocations. The absolute USGS locations are available from the USGS ComCat (https://earthquake.usgs.gov/data/comcat/). Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... Sulphur Peak, Idaho, USGS, USGS Science Data Catalog (SDC), United States, earth science, earthquake hazard, geophysics, hypocenter, seismic hazard, seismology, Fewer tags Database of Central and Eastern North American Seismic Velocity Structure The “Database of Central and Eastern North American Seismic Velocity Structure” involves the compilation of one-dimensional (1D) seismic velocity-depth functions for central and eastern North America (CENA). The present database is an update of the report by Chulick and Mooney (2002) who present a compilation and statistical analysis of 1D seismic velocity-depth functions for North America and its margins. All seismic velocity-depth functions are extracted from peer-reviewed journal articles, with 86% derived from active-source seismic refraction profiles and the remaining 14% from receiver functions or local earthquake tomography models. No reanalysis of the original seismic field data was undertaken. The database... Categories: Data; Tags: EHP, ESC, Earthquake Hazards Program, Earthquake Science Center, Geophysics, All tags... Seismology, USGS, USGS Science Data Catalog (SDC), United States, Fewer tags One-second USGS magnetic observatory data collected before 2013 The USGS Geomagnetism Program operates a network of magnetic observatories that collect vector and scalar magnetometer data for use in Earth main-field modeling, geophysics research, space physics research, and space weather hazard assessment and mitigation. Until mid-2011, only 1-minute time resolution magnetic field measurements were archived with the INTERMAGNET consortium following international magnetic observatory standards. 1-second time resolution magnetic field measurements, which had already been collected by all the USGS observatories for up to almost a decade prior, started being archived with INTERMAGNET on June 13, 2011, or July 27, 2012 in the case of the more recently constructed Deadhorse (DED)... Categories: Data; Tags: Barrow Alaska, Boulder Colorado, College Alaska, Deadhorse Alaska, Dededo Guam, All tags... Fesno California, Fredericksburg Virginia, Geologic Hazards Science Center, Geomagnetism Program, Geophysics, Honolulu Hawaii, Newport Washington, North America, Shumagin Alaska, Sitka Alaska, Stennis Space Center Mississippi, Tucson Arizona, USGS, USGS Science Data Catalog (SDC), United States, geoscientificInformation, magnetic observatory, magnetic scalar field, magnetic variometer, magnetic vector field, magnetometer, Fewer tags San Francisco Bay region 3D seismic velocity model v21.0 This three-dimensional (3D) seismic velocity model includes a detailed domain covering the greater San Francisco Bay urban region and a regional domain at a coarser resolution covering a larger region. Version 21.0 is a re-release of v08.3.0 in a new storage scheme. The model was constructed by assigning elastic properties (density, Vp, Vs, Qp, and Qs) to grids of points based on the geologic unit and depth from the ground surface. The model is stored in HDF5 files using the GeoModelGrids (https://geomodelgrids.readthedocs.io) storage scheme (see the README.md file for an overview). GeoModelGrids provides a high-level interface for accessing the model. The model can also be accessed using the HDF5 application programming... Tags: California, GHSC, Geophysics, Golden, San Francisco Bay, All tags... Seismology, USGS, USGS Science Data Catalog (SDC), earthquake, earthquake hazards, elastic properties, epicenter, plate tectonics, seismic, seismic velocity model, three dimensional model, Fewer tags Regional and Teleseismic Observations for Finite-Fault Product This data release complements the following publication: Goldberg, D. E., P. Koch, D. Melgar, S. Riquelme, and W. L. Yeck (2022). Beyond the Teleseism: Introducing Regional Seismic and Geodetic Data into Routine USGS Finite-Fault Modeling, Seismol. Res. Lett. XX, 1–16, doi: 10.1785/0220220047. Rapid finite-fault models are published by the US Geological Survey (USGS) National Earthquake Information Center (NEIC) routinely following large (M7+) earthquakes. Finite-fault models estimate the spatiotemporal evolution of heterogeneous slip across a fault. The type of data used as input to a finite-fault inversion affects the overall resolution of the model and the slip pattern itself. In the associated manuscript, we... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, California, Chile, GHSC, Geophysics, All tags... Golden, Haiti, Remote Sensing, Seismology, USGS, USGS Science Data Catalog (SDC), United States, biota, earthquake, finite fault, Fewer tags Data Release for the 2003 Puerto Rico and U.S. Virgin Islands Seismic Hazard Model Gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2003 Puerto Rico and U.S. Virgin Islands Seismic Hazard Model. Probabilistic seismic hazard data and maps are available for peak ground acceleration (PGA) and 0.2, 0.3, and 1.0 second spectral acceleration at probability levels of 2 percent in 50 years and 10 percent in 50 years, assuming firm rock soil conditions at 760 m/s. Development of the 2003 Puerto Rico and U.S. Virgin Islands Seismic Hazard Model is documented at https://doi.org/10.1193/1.3277667 and https://pubs.usgs.gov/of/2003/ofr-03-379/ofr-03-379.html. This dataset is considered a legacy dataset. The original dataset was uploaded... Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Puerto Rico, Puerto Rico, Seismology, U.S. Seismic Hazard Maps, U.S. Virgin Islands, U.S. Virgin Islands, USGS, USGS Science Data Catalog (SDC), ground motion, hazard curve, hazard map, spectral period, Fewer tags Data Release for the 2012 Guam and Northern Mariana Islands Seismic Hazard Model Gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2012 Guam and Northern Mariana Islands Seismic Hazard Model. Probabilistic seismic hazard data and maps of Guam and the Northern Mariana 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. Development of the 2012 Guam and Northern Mariana Islands Seismic Hazard Model is documented in the USGS Open-File Report 2012-1015 (https://pubs.usgs.gov/of/2012/1015/).... Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... Guam and the Northern Mariana Islands, Guam and the Northern Mariana Islands, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), ground motion, hazard curve, hazard map, spectral period, Fewer tags Data Release for the 2007 Afghanistan Seismic Hazard Model Gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2007 Afghanistan Seismic Hazard Model. Probabilistic seismic hazard data and maps of Afghanistan 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), 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 Afghanistan Seismic Hazard Model is documented in the USGS Open-File Report 2007-1137 (https://pubs.usgs.gov/of/2007/1137/index.html). This... Tags: Afghanistan, Afghanistan, EHP, Earthquake Hazards Program, GHSC, All tags... Geologic Hazards Science Center, Geophysics, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USAID, USGS, USGS Science Data Catalog (SDC), ground motion, hazard curve, hazard map, spectral period, Fewer tags Voltages measured on long grounded electrically conducting lines in North American during several magnetic storms, 1891-1940 Presented is a list of voltages (electric potential differences) measured during magnetic storms on grounded long lines in the United States and Canada between 1891 and 1940. The sources for the list are published papers, technical documents, and newspapers. Each entry consists of the maximum voltage measured for each storm on a specified line connecting two ground points, nominally, between A "and" B. However, if a specific polarity is available, for example, the positive voltage from point A to point B, then the maximum voltage for the indicated polarity is listed, that is, positive A "to" B; conversely, for the opposite polarity, that is, from point B to point A, then the maximum voltage for the indicated polarity... Categories: Data; Tags: Canada, Earth surface, Electromagnetic induction, Geoelectric field, Geomagnetic field, All tags... Geophysics, Magnetic storm, Natural hazards, North America, Space weather, USGS Science Data Catalog (SDC), United States, Voltage, biota, Fewer tags Data Release for the 1998 Hawaii Seismic Hazard Model Gridded seismic hazard cruve data, gridded ground motion data, mapped gridded ground motion values, and the seismicity catalog are available for the 1998 Hawaii Seismic Hazard Model. Probabilistic seismic hazard data and maps of Hawaii for peak ground acceleration (PGA) and 0.2, 0.3, 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. Development of the 1998 Hawaii Seismic Hazard Model is documented at https://doi.org/10.1785/0120000060. This dataset is considered a legacy dataset. The original dataset was uploaded to the USGS website... Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... Hawaii, Hawaii, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), ground motion, hazard curve, hazard map, spectral period, Fewer tags San Francisco Bay region 3D seismic velocity model v21.1 This three-dimensional (3D) seismic velocity model includes a detailed domain covering the greater San Francisco Bay urban region and a regional domain at a coarser resolution covering a larger region. Version 21.1 updates only the detailed domain with adjustments to the elastic properties east and north of the San Francisco Bay. There are no changes to the underlying 3D geologic model or the regional domain seismic velocity model. Version 21.1 of the detailed domain fits seamlessly inside version 21.0 of the regional domain without any jumps in elastic properties across the boundary between the two domains. The model was constructed by assigning elastic properties (density, Vp, Vs, Qp, and Qs) to grids of points... Tags: California, GHSC, Geophysics, Golden, San Francisco Bay, All tags... Seismology, USGS, USGS Science Data Catalog (SDC), earthquake, earthquake hazards, elastic properties, epicenter, plate tectonics, seismic, seismic velocity model, three dimensional model, Fewer tags Data Release for the 2008 National Seismic Hazard Model for the Conterminous U.S. Seismicity catalogs, gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2008 National Seismic Hazard Model for the Conterminous U.S. (1) Seismicity catalogs are available for the western U.S. (in Mw) and central and eastern U.S. (in mb). (2) Gridded (0.05 degree by 0.05 degree) ground motion values and hazard maps are available for peak ground acceleration (PGA) and 0.1, 0.2, 0.3, 0.5, 1.0, and 2.0 second spectral acceleration (SA) at probability levels of 2% in 50 years (annual probability of 0.000404), 5% in 50 years (annual probability of 0.001026), and 10% in 50 years (annual probability of 0.0021), assuming firm rock soil conditions... Tags: Conterminous U.S., EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Geophysics, NEHRP site classes, NSHM, NSHMP, National Seismic Hazard Model, National Seismic Hazard Model Project, Seismology, U.S. Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), conterminous U.S., ground motion, hazard curve, hazard map, spectral period, Fewer tags Data Release for the 2021 Update of the U.S. National Seismic Hazard Model for Hawaii The 2021 update of the U.S. National Seismic Hazard Model for Hawaii succeeds the twenty-year-old former model by incorporating new data and modeling techniques to improve the ground shaking forecasts. Output from the model includes probabilistic seismic hazard curves calculated for a 0.02° x 0.02° grid of latitude/longitude locations across Hawaii. The new model provides an expanded suite of hazard curves for twenty-three different ground motion intensity measures, including PGA, PGV, and spectral accelerations between 0.01 and 10 second, and for eight separate soil site classes (VS30 = 1500 m/sec to 150 m/sec), representing NEHRP site classes A/B to E. In addition, gridded uniform- hazard data are provided... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geophysics, Hawaii, National Seismic Hazard Model, Seismology, USGS Science Data Catalog (SDC), All tags... earthquake hazard, Fewer tags 1 2 »