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Geologic Inputs for the 2023 Alaska Update to the U.S. National Seismic Hazard Model (NSHM)

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 01, 2026 at 03:19 AM | Dataset Last Updated: June 09, 2025 at 12:00 AM
This data release is composed of three crustal (as opposed to subduction zone) geologic input datasets for the 2023 Alaska update to the U.S. National Seismic Hazard Model (NSHM): 1) fault section vector line data, 2) fault zone vector polygon data, and 3) accompanying earthquake geology attributes.

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