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Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview

January 3, 2024

This data release contains data sets associated with the 2023 50-State National Seismic Hazard Model Update. The 2023 50-State National Seimsic Hazard Model (NSHM) Update includes an update to the NSHMs for the conterminous U.S (CONUS, last updated in 2018), Alaska (AK, last updated in 2007), and Hawaii (last updated in 2001). Data sets include inputs like seismicity catalogs used as input to the smoothed seismicity model and updated induced seismicity zone polygons in the central and eastern U.S., as well as outputs like hazard curves and uniform-hazard ground motion values. Plots of selected data sets are also included. The data sets provided here are primarily for the 2023 CONUS NHSM and 2023 AK NSHM. Additional data sets for the 2023 AK NSHM can be found at Previously released data sets for the 2021 Hawaii NSHM can be found at

Publication Year 2024
Title Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview
DOI 10.5066/P9GNPCOD
Authors Mark D Petersen, Allison M Shumway, Peter M Powers, Ned Field, Morgan P Moschetti, Kishor Jaiswal, Kevin R Milner, Sanaz Rezaeian, Arthur D Frankel, Andrea L Llenos, Andrew J Michael, Jason M Altekruse, Sean K Ahdi, Kyle Withers, Charles S Mueller, Yuehua Zeng, Robert E Chase, Leah M Salditch, Nicolas Luco, Kenneth S Rukstales, Julie A Herrick, Demi L Girot, Brad T Aagaard, Adrian M Bender, Michael L Blanpied, Richard Briggs, Oliver S Boyd, Brandon S Clayton, Christopher B Duross, Eileen Evans, Peter J Haeussler, Alexandra E Hatem, Kirstie L Haynie, Elizabeth Hearn, Kaj Johnson, Zachary A Kortum, Neal (Simon) Kwong, Andrew J Makdisi, Henry (Ben) (Contractor) B. Mason, Daniel E McNamara, Devin F. McPhillips, Paul G Okubo, Morgan T Page, Fred Pollitz, Justin L Rubinstein, Bruce Shaw, Zheng-Kang Shen, Brian R Shiro, James A Smith, William J Stephenson, Eric M Thompson, Jessica A Jobe, Erin (Wirth) W Moriarty, Robert C Witter
Product Type Data Release
Record Source USGS Digital Object Identifier Catalog
USGS Organization Earthquake Hazards Program