The October 22, 1936 earthquake

M6.8near Beluga, Alaska

A magnitude 6.8 earthquake 9.3 miles deep, 1.9 miles off Matanuska-Susitna Borough. The 93rd strongest in Alaska’s record since 1900, and the strongest within 50 miles since a magnitude 6.8 on April 26, 1933.

The earthquake

Magnitude: 6.8; moment magnitude (mw)
Depth: 9.3 mi; 15.0 km below the surface
Local time: Thursday, October 22, 1936; 20:24 AST; 06:24 UTC on Oct 23, 1936
Epicentre: 61.17°N, 151.02°W; 1.9 mi from Matanuska-Susitna Borough
In Alaska’s record: 93rd; strongest of 124,625 since 1900
Within 50 miles: 3; counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event iscgem903895 (“4 km NE of Beluga, Alaska”). 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

Earthquakes around the epicentre

1,989 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

April 26, 1933M6.8
June 17, 1934M6.7
June 13, 1933M6.0
June 19, 1933M5.8
June 12, 1933M5.8

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