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This Data Release contains three related databases for the Central and Eastern United States: 1) A fault sections database (“NSHM2023_FaultSections_CEUS_v1”), which depicts the geometry of faults capable of hosting independent earthquakes, 2) A fault zone polygon database ("NSHM2023_FaultPolygons_CEUS_v1"), which depicts the geometry of distributed fault zones capable of hosting repeated large magnitude events but a specific fault source remains unidentified, and 3) An earthquake geology site information database (“NSHM2023_EQGeoDB_CEUS_v1”), which contains fault slip-rate and earthquake recurrence constraints at points. These databases were prepared in anticipation of updates to the National Seismic Hazard Model...
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Version 2.0 is now available. Please see new data release here: https://doi.org/10.5066/P9AU713N. This Data Release contains preliminary versions of two related databases: 1) A fault sections database (“NSHM2023_FaultSections_v1”), which depicts the geometry of faults capable of hosting independent earthquakes, and 2) An earthquake geology site information database (“NSHM2023_EQGeoDB_v1”), which contains fault slip-rate constraints at points. These databases were prepared in anticipation of updates to the National Seismic Hazard Model (NSHM) 2023. Fault-specific geologic parameters for the NSHM have not been updated since the 2014 NSHM release. The datasets include the states of Washington, Oregon, California,...
Categories: Data
This page contains documentation for the related earthquake geology databases for the Central and Eastern United States for the National Seismic Hazard Model (NSHM) 2023 update.
Categories: Data
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This data release includes field observations and laboratory data for two trenches excavated across the Lost River fault zone, Idaho, in September 2019. The field sites include the Sheep Creek site (44.282541 degrees N, 113.941193 degrees W) on the southernmost Warm Springs section and the Arentson Gulch site (44.247816 degrees N, 113.918554 degrees W) on the northernmost Thousand Springs section. Field observations include descriptions of stratigraphic units exposed in the trenches; laboratory data include 41 radiocarbon ages and 4 infrared stimulated luminescence ages.
    map background search result map search result map Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 NSHM2023_FaultSections_v1 NSHM2023_FaultSections_v1 Shapefile NSHM2023_EQGeoDB_v1 Shapefile Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2023 (central and eastern United States), version 1.0 NSHM2023_EQGeoDB_CEUS_v1 shapefile NSHM2023_FaultSections_CEUS_v1 shapefile NSHM2023_FaultPolygons_CEUS_v1 shapefile Field and Laboratory Data for the Sheep Creek and Arentson Gulch Trench Sites, Lost River Fault Zone, Idaho NSHM2023_FaultSections_CEUS_v1 shapefile NSHM2023_EQGeoDB_CEUS_v1 shapefile NSHM2023_FaultPolygons_CEUS_v1 shapefile NSHM2023_EQGeoDB_v1 Shapefile NSHM2023_FaultSections_v1 Shapefile NSHM2023_FaultSections_v1 Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 Earthquake geology inputs for the National Seismic Hazard Model (NSHM) 2023 (central and eastern United States), version 1.0