M3.9 earthquake 18 km NE of Cantwell, Alaska
A magnitude 3.9 earthquake struck 18 km NE of Cantwell, Alaska on Sat, Mar 13, 1976, 4:33 AM GMT-10 (14:33 UTC), 22 km (14 mi) below the surface.
A larger quake followed: M4.1 64 km ESE of McKinley Park, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb), minor
- Local time
- UTC
- 1976-03-13 14:33:42 UTC
- Depth
- 22.0 km (13.7 mi), shallow
- Epicenter
- 63.503° N, 148.673° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.161 km W of Cantwell, Alaska · 18459 days ago · 33 km deep · 75 km away
- 4.164 km ESE of McKinley Park, Alaska · 18449 days ago · 33 km deep · 52 km away
- 3.0Central Alaska · 18429 days ago · 39 km deep · 59 km away
- 3.077 km NW of Paxson, Alaska · 18428 days ago · 33 km deep · 89 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000fea. Read Tue, Sep 29, 2026, 10:48 AM UTC.