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01. Seismicity catalogs for the 2023 update of the National Seismic Hazard Model for the state of Alaska

Dates

Publication Date
Model Year
2023

Citation

Altekruse, J.M., Powers, P.M., Llenos, A.L, and Haynie, K.L., 2024, Data Release for the 2023 Alaska National Seismic Hazard Model: U.S. Geological Survey data release, https://doi.org/10.5066/P9EVWWFZ.

Summary

This dataset contains earthquake catalogs compiled for Alaska from U.S. Geolgical Survey (USGS) Advanced National Seismic System (ANSS) Comprehensive Earthquake Catalog (ComCat) (USGS, 2017) and Natural Resources Canada (NRCan) Canadian National Earthquake Database (NRCan, 1985) catalog searches and processed following the methods of Mueller (2019) and Llenos et al. (2024). Catalogs are deculstered using multiple methods and segregated into crustal, subduction interface, and subduction intraslab catalogs using Slab2 (Hayes, 2018).

Contacts

Attached Files

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alaska-2023-catalogs.zip 6.91 MB application/zip
README.md 11 KB text/x-web-markdown

Purpose

The raw catalog of seismicity was compiled since the last update of the National Seismic Hazard Model (NSHM) for the state of Alaska, released in 2007 (Wesson et al., 2007), as a component of the 2023 update of the NSHM (Petersen et al., 2024; Powers et al., 2024). Three declustering methods are applied to the catalog and the catalog is segregated into subcatalogs for three tectonic settings.

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