Filters: Tags: Geophysics (X) > partyWithName: GHSC Data Steward (X)

Filters Date Range Past year (12) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (3) Raster (1) Types Citation (24) Map Service (13) OGC WFS Layer (13) OGC WMS Layer (13) OGC WMS Service (10) More... Contacts U.S. Geological Survey Natural Hazards U.S. Geological Survey - ScienceBase Earthquake Hazards Program U.S. Geological Survey More... Categories Data (18) Data Release - Revised (3) Tag Types Theme (64) Place (63) USGS Scientific Topic Keyword (39) Harvest Set (48) Data Attribute (1) Tag Schemes USGS Thesaurus (56) Geographic Names Information System (GNIS) (53) USGS Earthquake Hazards (3) Geologic Hazards Science Center (2) None (3) Earthquake Hazards Program; GHSC; Geologic Hazards Science Center; USGS; U.S. Geological Survey; Earthquake; Wilzetta fault zone; Meeker-Prague fault; Prague; Oklahoma; Aftershock (1) earthquake seismology (1) More... View Results as: JSON ATOM CSV

U.S. Seismic Hazard Maps - 2002 Edition The 2002 U.S. Geological Survey (USGS) National Seismic Hazard Maps display earthquake ground motions for various probability levels across the United States and are applied in seismic provisions of building codes, insurance rate structures, risk assessments, and other public policy. This update of the maps incorporates new findings on earthquake ground shaking, faults, seismicity, and geodesy. The resulting maps are derived from seismic hazard curves calculated on a grid of sites across the United States that describe the frequency of exceeding a set of ground motions. Types: Citation; Tags: B/C site class boundary, EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Hazard Maps, NEHRP, National Earthquake Hazard Reduction Program, National Seismic Hazard Maps, Seismic Hazard Maps, USGS, USGS Science Data Catalog (SDC), United States, Vs30, building codes, earthquake ground motions, earthquake probability, geophysics, insurance rate structures, probabilistic hazard maps, public policy, risk assessments, seismic hazard, seismic hazard curves, seismic provisions, spectral accelerations, tectonic, Fewer tags ShakeMap – Earthquake Ground Motion and Shaking Intensity Maps ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. These maps are used by federal, state, and local organizations, both public and private, for post-earthquake response and recovery, public and scientific information, as well as for preparedness exercises and disaster planning. Types: Citation; Tags: ANSS, Advanced National Seismic System, ComCat, Comprehensive Earthquake Catalog, Earth, All tags... Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, ShakeMap, USGS, disaster planning, earth science, earthquake hazard, geophysics, ground motion, post-earthquake recovery, post-earthquake response, preparedness exercises, real time monitoring, regional earthquake, regional seismic networks, seismic hazard, seismology, shaking intensity, tectonophysics, Fewer tags A database of instrumentally recorded ground motion intensity measurements from induced earthquakes in Oklahoma and Kansas The database contains uniformly processed ground motion intensity measurements (peak horizontal ground motions and 5-percent-damped pseudospectral accelerations for oscillator periods 0.1–10 s). The earthquake event set includes more than 3,800 M≥3 earthquakes in Oklahoma and Kansas from January 2009 to December 2016. Ground motion time series were collected out to 500 km. We also relocated the majority of the earthquake hypocenters using a multiple-event relocation algorithm to produce a set of near-uniformly processed hypocentral locations. Details about data processing are reported in the accompanying article. First posted - October 11, 2017 Revised - December 18, 2017, ver. 1.1 Categories: Data, Data Release - Revised; Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Kansas, All tags... Oklahoma, USGS, USGS Science Data Catalog (SDC), earthquake, earthquake ground motion, earthquake hazard, geophysics, ground motion intensity, induced earthquake, relocated earthquake hypocenter, seismic hazard, spectral acceleration, Fewer tags Earthquake Hazards Program: Earthquake Scenarios A scenario represents one realization of a potential future earthquake by assuming a particular magnitude, location, and fault-rupture geometry and estimating shaking using a variety of strategies. In planning and coordinating emergency response, utilities, local government, and other organizations are best served by conducting training exercises based on realistic earthquake situations—ones similar to those they are most likely to face. ShakeMap Scenario earthquakes can fill this role. They can also be used to examine exposure of structures, lifelines, utilities, and transportation corridors to specified potential earthquakes. A ShakeMap earthquake scenario is a predictive ShakeMap with an assumed magnitude and... Types: Citation; Tags: Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, ShakeMap, USGS, All tags... United States, earth science, earthquake hazard, earthquake scenario, fault-rupture geometry, geophysics, seismic hazard, seismology, Fewer tags Geophysical Site Characterization of Bay Area Seismic Monitoring Stations: Vs-depth Profiling, NEHRP Site Classifications, and Linear Shallow Seismic Amplification Functions New active-source shallow seismic (shear-wave and acoustic-wave) measurements were obtained at 18 prioritized seismic monitoring station locations in the north San Francisco Bay area to measure site-specific ground motion amplification effects, soil depth, depth to bedrock (Z1.0 Vs=1 km/s), calculate site specific velocity-depth profiles and Vs30, and develop NEHRP site classifications for each location. This study was led by Principal Investigators Jamey Turner, Cooper Brossy, and Daniel O’Connell and field data were acquired by Glendon Adams and Lincoln Steele. Seismic monitoring sites that recorded high PGA values during the M6.0 Napa earthquake, proximal to higher population densities, and sites recommended... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... NEHRP, Napa, National Earthquake Hazards Reduction Program, PGA, PGV, San Francisco Bay, USGS, United States, earth science, earthquake hazard, geophysical survey, geophysics, peak ground acceleration, peak ground velocity, seismic hazards, seismic monitoring, seismic velocity, seismology, shear wave velocity, tectonophysics, Fewer tags Inventory of landslides triggered by the 2020 Puerto Rico earthquake sequence Here we present an inventory of remotely and field-observed landslides triggered by 2019-2020 Puerto Rico earthquake sequence. The inventory was mapped using pre- and post-event satellite imagery (PR_landslide_inventory_imagery.csv), an extensive collection of field observations (https://doi.org/10.5066/P96QNFMB) and using pre-earthquake lidar as guidance for mapping polygons with more precise locations and geometries (2015 - 2017 USGS Lidar DEM: Puerto Rico dataset). The inventory consists of a shapefile of 309 polygons (PR_landslide_inventory_pts.shp) outlining the source area and deposits together. It also includes a point inventory (PR_landslide_inventory_pts.shp) marking 170 individual displaced boulders that... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Guayanilla, Guánica, All tags... Landslide Hazards Program, Peñuelas, Ponce, Puerto Rico, USGS, USGS Science Data Catalog (SDC), United States, earth science, earthquake hazard, geophysics, landslide, rock fall, seismic hazard, seismology, Fewer tags Slab2 - A Comprehensive Subduction Zone Geometry Model 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. ##### This distribution includes models of three-dimensional slab geometry under... Tags: EHP, Earth, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Geophysics, Seismology, USGS, USGS Science Data Catalog (SDC), earth science, earthquake hazard, large earthquake ruptures, shallow megathrust interface, subduction zone, subduction zone geometry model, Fewer tags Preliminary Determination of Epicenters (PDE) Bulletin The NEIC global earthquake bulletin is called the Preliminary Determination of Epicenters or PDE, and is one of many discrete products in the ANSS Comprehensive Catalog (ComCat). We use the word "Preliminary" for our final bulletin because the Bulletin of the International Seismological Centre is considered to be the final global archive of parametric earthquake data, in other words phase arrival (“pick”) times and amplitudes. Types: Citation; Tags: ANSS, Advanced National Seismic System, ComCat, Comprehensive Earthquake Catalog, Earth, All tags... Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, NEIC, National Earthquake Information Center, PDE, Preliminary Determination of Epicenters Bulletin, USGS, earth science, earthquake hazard, epicenter, geophysics, real time monitoring, seismic hazard, seismology, tectonophysics, 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 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 Post-wildfire debris-flow monitoring data, Arroyo Seco, 2009 Station Fire, Los Angeles County, California, November 2009 to March 2010. This data release includes time-series data from a monitoring site located in a small drainage basin in the Arroyo Seco watershed in Los Angeles County, CA, USA (N3788964 E389956, UTM Zone 11, NAD83). The site was established after the 2009 Station Fire and recorded a series debris flows in the first winter after the fire. The data include three types of time-series: (1) 1-minute time series of rainfall, soil water content, channel bed pore pressure and temperature, and flow stage recorded by radar and laser distance meters (ArroyoSecoContinuous.csv); (2) 10-Hz time series of flow stage recorded by the laser distance meter during rain storms (ArroyoSecoStormLaser.csv), and (3) 2-second time series of rainfall and... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arroyo Seco, California, GHSC, Geologic Hazards Science Center, Landslides Hazards Program, Los Angeles County, California, All tags... USGS, USGS Science Data Catalog (SDC), debris flow, drainage basin, earth science, fire, geophysics, heterogeneous infiltration capacity, infiltration capacity, landslide, landslide hazard, rainfall, seismology, soil water content, wildfire, Fewer tags A Compilation of Vs30 Values in the United States Compiled Vs30 measurements obtained by studies funded by the U.S. Geological Survey (USGS) and other governmental agencies. Thus far, there are 2,997 sites in the United States, along with metadata for each measurement from government-sponsored reports, Web sites, and scientific and engineering journals. Most of the data originated from publications directly reporting the work of field investigators. A small subset (less than 20 percent) of Vs30 values was previously compiled by the USGS and other research institutions. Whenever possible, Vs30 originating from these earlier compilations were crosschecked against published reports. Both downhole and surface-based Vs30 estimates are represented. Most of the VS30 data... Types: Citation; Tags: Earth, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, USGS, All tags... Vs30, Vs30 coefficients, average shear-velocity, earth science, earthquake hazard, emergency management, emergency manager, emergency responder, emergency response, first-order assessment of seismic site conditions, geology, geophysics, ground-motion prediction, ground-shaking, seismic hazard, seismic site conditions, seismology, shear-velocity, topographic slope, topographic slope-based Vs30 maps, topography, Fewer tags Peak Ground Displacement Observations This item contains a single text file containing the station information for each station in the dataset that contains a peak ground displacement observation about the GNSS noise floor. The text file is organized in the following format: EventYear, Event Magnitude (Mw), Station ID, Station Longitude, Station Latitude, Station Elevation, Station Hypocentral Distance, PGD (meters) Tags: Geophysics, Remote Sensing, Seismology Data Release for the 2018 Update of the U.S. National Seismic Hazard Model: Where, Why, and How Much Probabilistic Ground Motion Maps Changed This dataset presents where, why, and how much probabilistic ground motions have changed with the 2018 update of the National Seismic Hazard Model (NSHM) for the conterminous U.S. (CONUS) vs. the 2014 NSHM. In the central and eastern U.S., hazard changes are the result of updated ground motion models (further broken down by median and epistemic uncertainty, aleatory variability, and site effects models) and gridded seismicity models. In the western U.S., hazard changes are the result of updated ground motion models in four urban areas with deep sedimentary basins and gridded seismicity models. Probabilistic ground motion changes (2% in 50 years probability of exceedance for a firm rock site, VS30 = 760 m/s, NEHRP... Categories: Data; 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), ground motion, hazard curve, hazard map, spectral period, Fewer tags Data Release for PGV Data for the 2018 National Seismic Hazard Model for the Conterminous United States Peak ground velocity (PGV) gridded probabilistic seismic hazard data for the updated 2018 National Seismic Hazard Model (NSHM) for the Conterminous United States (CONUS). PGV hazard curves and ground motions have been calculated on a 0.05 by 0.05 degree grid using the NSHM CONUS 2018 earthquake source model. PGV support has been incorporated into the NSHM using a newly developed PGV model conditioned on pseudo-spectral acceleration (Abrahamson and Bhasin, 2020, PEER Report No. 2020/05). See Powers et al. (in press) for implementation details. This dataset complements the "Data Release for Additional Period and Site Class Data for the 2018 National Seismic Hazard Model for the Conterminous United States (ver. 1.2,... Tags: CONUS, CONUS, Conterminous U.S., Conterminous U.S., EHP, All tags... Earthquake Hazards Program, GHSC, 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 Data Release for the 2010 Haiti Seismic Hazard Model Gridded seismic hazard curve data, gridded ground motion data, and mapped gridded ground motion values are available for the 2010 Haiti Seismic Hazard Model. Probabilistic seismic hazard data and maps are available for peak ground acceleration (PGA) and 0.2, 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 2010 Haiti Seismic Hazard Model is documented at https://pubs.usgs.gov/of/2010/1067/ and https://doi.org/10.1193/1.3631016. This dataset is considered a legacy dataset. The original dataset was uploaded to the USGS website at the time of publication of the seismic hazard model (2010)... Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... Haiti, Haiti, 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 Earthquake Relocations for the 2008 Wells, Nevada Earthquake Sequence The 2008 Wells, Nevada Earthquake Sequence: Source Constraints using Calibrated Multiple Event Relocation and InSAR Categories: Data; Tags: Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, InSAR, All tags... Seismology, USGS, USGS Science Data Catalog (SDC), United States, Wells, Nevada, calibrated multiple event relocation, earthquake, earthquake hazard, earthquake relocation, geophysics, seismic hazard, seismology, source constraints, tectonic, Fewer tags U.S. National Seismic Hazard Maps: Products and Tools The U.S. Geological Survey’s National Seismic Hazard Map Program publishes a number of products and tools designed to provide details of earthquake shaking hazards and help engineers meet modern seismic design provisions for the construction of buildings, bridges, highways, and utilities that are better able to withstand earthquakes, not only saving lives but also enabling critical activities to continue with less disruption. Types: Citation; Tags: B/C site class boundary, EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, All tags... Hazard Maps, NEHRP, National Earthquake Hazard Reduction Program, National Seismic Hazard Maps, Seismic Hazard Maps, USGS, United States, Vs30, building codes, earthquake ground motions, earthquake probability, geophysics, insurance rate structures, probabilistic hazard maps, public policy, risk assessments, seismic hazard, seismic hazard curves, seismic provisions, spectral accelerations, tectonic, Fewer tags Digital Surface Models for the northern 16 km of the 1983 Borah Peak earthquake rupture, northern Lost River fault zone (Idaho, USA) We present high-resolution (10-cm pixel) digital surface models (DSMs) generated for the northern 16 km of the surface rupture associated with the 1983 Mw 6.9 Borah Peak earthquake. These DSMs were generated using Agisoft Photoscan (and Metashape) image-based modeling software and low-altitude aerial photographs acquired from unmanned aircraft systems and a tethered balloon. DSM files consist of GeoTIFFs with georeferencing information stored in the file headers. Tags: Borah Peak, Idaho, DSM, EHP, Earthquake Hazards Program, GHSC, All tags... Geologic Hazards Science Center, Geophysics, Seismology, USGS, USGS Science Data Catalog (SDC), digital surface models, earth science, earthquake hazard, Fewer tags Data Set S1 for "Coseismic Sackungen in the New Madrid Seismic Zone, USA" The New Madrid Seismic Zone presents significant seismic hazard to the central and eastern United States. We mapped newly-identified coseismic ridge-spreading features, or sackungen, in the bluffs east of the Mississippi River in western Tennessee. We use this mapping dataset in an accompanying manuscript to show that sackungen form during earthquakes on the Reelfoot fault and may fail in preferred orientations. Ultimately, these data can be used to infer fault source and mechanism and improve the paleoseismic record used in hazard models. Tags: EHP, Earthquake Hazards Program, GHSC, Geologic Hazards Science Center, Geophysics, All tags... Mississippi River, New Madrid Seismic Zone, Reelfoot fault, Seismology, Tennessee, USA, USGS, USGS Science Data Catalog (SDC), coseismic ridge-spreading features, earth science, earthquake hazard, fault, fault mechanism, fault source, hazard models, paleoseismic record, sackungen, Fewer tags 1 2 3 4 »