The catalogs listed below were generated by UUSS for the monitored regions (Utah & Yellowstone) and other specialized studies.
Digital Catalogs
These catalogs were created using modern, digital waveforms. They represent the most standardized catalogs for our regions. These catalogs are part of the searchable U.S. Geological Survey Comprehensive Catalog (ComCat). They use a different datum (sea level) than the earlier catalogs.
- Utah Authoritative Region 1981 - September 20, 2023 Hypo71 sum format or csv file
- Yellowstone Authoritative Region 1982 - September 30, 2023 Hypo71 sum format or csv file
- *Note: the Yellowstone network was not operational 1982-1983; the few earthquakes from that time period were located with the Utah Network stations
- Moment Tensor Solutions
Pre-Digital Catalogs
These catalogs were created with the best data available at the time, but have not seen the same level of processing and rigorous standards as is possible with digital data. The datum for these catalogs is 1.5km for Utah and 2.0km for Yellowstone.
- Utah Region July 1962 - September 1974 Hypo71 sum format or csv file
- This catalog is based on instrumental earthquake locations from a skeletal regional seismic network of less than 10 stations statewide.
- Utah Region October 1974 - 1980 Hypo71 sum format or csv file
- Data are available from a denser network of high-gain telemetered stations, enabling significantly better locations and magnitude determinations than for the previous time period.
- Yellowstone Region USGS Catalog 1973 - 1981 Hypo71 sum format or csv file
Specialized Earthquake Catalogs
Earthquake catalogs resulting from research projects in UUSS.