The September 29, 1921 earthquake

M5.2near Central Valley, Utah

A magnitude 5.2 earthquake, centred in Sevier County. The 15th strongest in Utah’s record since 1900, and the strongest within 50 miles since a magnitude 6.6 on November 13, 1901.

The earthquake

Magnitude: 5.2; as reported (uk)
Depth: —; Not recorded
Local time: Thursday, September 29, 1921; 07:12 MST; 14:12 UTC
Epicentre: 38.70°N, 112.10°W; In Sevier County
In Utah’s record: 15th; strongest of 2,224 since 1900
Within 50 miles: 10; counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ushis669 (“0 km SSW of Central Valley, Utah”). The USGS event page carries the ShakeMap, felt reports and the official summary.

Counties and cities within 50 miles

Distance from the epicentre to each county boundary (zero when inside) and to each city centre.

Counties

Sevier CountyUT · inside
Millard CountyUT · 6.7 mi
Piute CountyUT · 22.6 mi
Wayne CountyUT · 22.7 mi
Beaver CountyUT · 24.1 mi
Sanpete CountyUT · 24.3 mi
Juab CountyUT · 42.5 mi
Garfield CountyUT · 43.1 mi
Iron CountyUT · 43.3 mi
Emery CountyUT · 45.1 mi

Earthquakes around the epicentre

142 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.

Earlier earthquakes of magnitude 5 or more within 50 miles, strongest first

November 13, 1901M6.6

USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.