The July 22, 1937 earthquake
M7.1Central Alaska
A magnitude 7.1 earthquake 6.2 miles deep, centred in Fairbanks North Star Borough. The 37th strongest in Alaska’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 7.1
- moment magnitude (mw)
- Depth
- 6.2 mi
- 10.0 km below the surface
- Local time
- Thursday, July 22, 1937
- 07:09 AST; 17:09 UTC
- In Alaska’s record
- 37th
- strongest of 124,625 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event iscgem903173 (“Central 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
- Fairbanks North Star BoroughAK · inside
- Southeast Fairbanks Census AreaAK · 25.2 mi
- Denali BoroughAK · 26.0 mi
- Yukon-Koyukuk Census AreaAK · 41.4 mi
Cities, largest first
- FairbanksAK · 28.5 mi
Earthquakes around the epicentre
197 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
- July 3, 1929M6.0
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.