Earthquake Catalogs

The data listed for each region have been reviewed by an analyst, but may not be final. The listings may include some blasts.


 

Utah Catalogs
Historical Earthquakes 1850-1962 (462 earthquakes)

(The University of Utah historic catalog contains earthquakes from 1850, the year of publication of the first newspaper in Utah, through June 1962.) Historical Format or .csv file

July 1, 1962 – Sept. 30, 1974 (801 earthquakes)

(The July 1, 1962, to September 30, 1974, catalog is based on instrumental earthquake locations from a skeletal regional seismic network (less than 10 stations statewide before 1974.) Hypo71 sum format or .csv file

Oct. 1, 1974 – Dec. 31, 1980 (4,765 earthquakes)

(Beginning in October 1974, 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.) Hypo71 sum format or .csv file

Jan. 1, 1981 – December 31, 2015 (49,269 earthquakes)

(Beginning in January 1981, the network data were recorded digitally) Hypo71 sum format or .csv file

July 1, 1962 – December 31, 2015 (54,835 earthquakes)

(Entire Catalog) Hypo71 sum format or .csv file

 


 

Yellowstone Catalog

UUSS & USGS combined catalog 1973 – December 31, 2015 (44,082 earthquakes)

(note: the YNP network was not operational 1982-1983) Hypo71 sum Format or .csv file

UUSS catalog 1982 – December 31, 2015 (37,803 earthquakes)

(note: the YNP network was not operational 1982-1983) Hypo71 sum Format or .csv file

USGS catalog 1973 – 1981 (6,003 earthquakes)

Hypo71 sum Format or .csv file