Declustered earthquake catalog without duplicates for the western U.S.

A methodology has been developed at the U.S. Geological Survey (USGS) for making earthquake catalogs for seismic hazard analysis. A new catalog is assembled from several preexisting catalogs. Uniform moment magnitudes and related parameters for estimating unbiased seismicity rates are calculated. Duplicates, explosions, mining-related earthquakes, and induced earthquakes are flagged, and the catalog is declustered. Distinct catalogs are made for the central and eastern U.S. and the western U.S. This data set is the declustered catalog without duplicates for the western U.S.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220721212438
identifier USGS:5b18188be4b092d965219acf
metadata_type geospatial
modified 20200818
old-spatial {"type": "Polygon", "coordinates": [[[-126.900, 23.711], [-126.900, 50.987], [ -99.177, 50.987], [ -99.177, 23.711], [-126.900, 23.711]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 237a94b8c38855c6dfa1a7b820c239eed06a8389
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-126.900, 23.711], [-126.900, 50.987], [ -99.177, 50.987], [ -99.177, 23.711], [-126.900, 23.711]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • arizona
  • california
  • ckan
  • colorado
  • earthquake
  • geo
  • geoss
  • hazard
  • idaho
  • induced
  • montana
  • national
  • natural
  • nevada
  • new-mexico
  • north-america
  • oregon
  • seismic
  • texas
  • united-states
  • usa
  • usgs-5b18188be4b092d965219acf
  • utah
  • washington
  • wyoming
isopen False
license_id notspecified
license_title License not specified
maintainer Charles S. Mueller
maintainer_email cmueller@usgs.gov
metadata_created 2025-11-20T12:24:31.943942
metadata_modified 2025-11-20T12:24:31.943946
notes A methodology has been developed at the U.S. Geological Survey (USGS) for making earthquake catalogs for seismic hazard analysis. A new catalog is assembled from several preexisting catalogs. Uniform moment magnitudes and related parameters for estimating unbiased seismicity rates are calculated. Duplicates, explosions, mining-related earthquakes, and induced earthquakes are flagged, and the catalog is declustered. Distinct catalogs are made for the central and eastern U.S. and the western U.S. This data set is the declustered catalog without duplicates for the western U.S.
num_resources 2
num_tags 27
title Declustered earthquake catalog without duplicates for the western U.S.