The February 1, 1954 earthquake

M5.4near Estacion Coahuila, B.C., MX, Arizona

A magnitude 5.4 earthquake 3.7 miles deep, 45.5 miles off Yuma County. The 22nd strongest in Arizona’s record since 1900, and the strongest within 50 miles since a magnitude 5.7 on January 31, 1954.

The earthquake

Magnitude: 5.4; local magnitude (ml)
Depth: 3.7 mi; 6.0 km below the surface
Local time: Monday, February 1, 1954; 06:05 MST; 13:05 UTC
Epicentre: 31.72°N, 114.01°W; 45.5 mi from Yuma County
In Arizona’s record: 22nd; strongest of 6,972 since 1900
Within 50 miles: 2; counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ci3301223 (“107km ESE of Estacion Coahuila, B.C., MX”). 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

Yuma CountyAZ · 45.5 mi
Pima CountyAZ · 45.5 mi

Earthquakes around the epicentre

70 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

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