Merged earthquake catalog without duplicates for the western U.S. (Catalog A inside UCERF3 zone and Catalog B outside UCERF3 zone)

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 merged earthquake catalog without duplicates for the western U.S. (Catalog A inside UCERF3 zone and Catalog B outside UCERF3 zone).

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
identifier USGS:5b1813c1e4b092d965219a1c
metadata_type geospatial
modified 20200818
old-spatial -126.900, 23.711, -99.129, 50.987
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash effd0527df490cea729838f4d24bb0318ba48dce
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-126.900, 23.711], [-126.900, 50.987], [ -99.129, 50.987], [ -99.129, 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-5b1813c1e4b092d965219a1c
  • utah
  • washington
  • wyoming
isopen False
license_id notspecified
license_title License not specified
maintainer Charles S. Mueller
maintainer_email cmueller@usgs.gov
metadata_created 2025-11-22T10:29:29.667781
metadata_modified 2025-11-22T10:29:29.667785
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 merged earthquake catalog without duplicates for the western U.S. (Catalog A inside UCERF3 zone and Catalog B outside UCERF3 zone).
num_resources 2
num_tags 27
title Merged earthquake catalog without duplicates for the western U.S. (Catalog A inside UCERF3 zone and Catalog B outside UCERF3 zone)