The February 28, 1925 earthquake
M6.3near Saint-Pacôme, Canada, Maine
A magnitude 6.3 earthquake 9.3 miles deep, 36.8 miles off Aroostook County. The strongest in Maine’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 6.3
- moment magnitude (mw)
- Depth
- 9.3 mi
- 15.0 km below the surface
- Local time
- Saturday, February 28, 1925
- 21:19 EST; 02:19 UTC on Mar 1, 1925
- In Maine’s record
- 1st
- strongest of 221 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event iscgem910394 (“7 km NW of Saint-Pacôme, Canada”). 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
- Aroostook CountyME · 36.8 mi
Earthquakes around the epicentre
43 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.