The August 27, 1904 earthquake
M7.3Central Alaska
A magnitude 7.3 earthquake, centred in Yukon-Koyukuk Census Area. The 26th strongest in Alaska’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 7.3
- surface-wave magnitude (ms)
- Depth
- —
- Not recorded
- Local time
- Saturday, August 27, 1904
- 11:56 AST; 21:56 UTC
- In Alaska’s record
- 26th
- strongest of 124,625 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event official19040827215611000 (“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
- Yukon-Koyukuk Census AreaAK · inside
- Denali BoroughAK · 12.2 mi
Earthquakes around the epicentre
85 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.
No earlier earthquake of magnitude 5 or more within 50 miles in the catalogue since 1900.
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.