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This community page serves as a repository for current and past versions of earthquake geology input data utilized in the National Seismic Hazard Model (NSHM) 2023 release, for the conterminous U.S. Alaska input data can be found at: https://doi.org/10.5066/P97NRR0F. This page is maintained by: Alex Hatem Research Geologist Geologic Hazards Science Center ahatem@usgs.gov
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This Data Release contains version 3.0 of two related earthquake geology databases for use in the 2023 U.S. National Seismic Hazard Model. The databases are: 1) A fault sections database (“NSHM23_FSD_v3”), which depicts the geometry of faults capable of hosting independent earthquakes, and 2) an earthquake geology site information database (“NSHM23_EQGeoDB_v3”), which contains fault slip rate constraints at points. These databases cover the 12 western U.S. states: Washington, Oregon, California, Idaho, Nevada, Arizona, Montana, Wyoming, Colorado, New Mexico and Texas. Datasets containing crustal fault information for Alaska and the central and eastern United States were prepared by Bender and others, 2021 and Thompson...
    map background search result map search result map Earthquake geology inputs for the 2023 National Seismic Hazard Model (conterminous U.S.) Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023) Earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023 (western U.S.) (ver. 3.0, December 2023)