M3.7 earthquake 24 km W of Cohoe, Alaska
A magnitude 3.7 earthquake struck 24 km W of Cohoe, Alaska on Sun, Apr 4, 1976, 12:08 AM GMT-10 (10:08 UTC), 83 km (52 mi) below the surface.
A larger quake followed: M4.1 68 km WNW of Nikiski, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mb), minor
- Local time
- UTC
- 1976-04-04 10:08:16 UTC
- Depth
- 83.0 km (51.6 mi), intermediate-depth
- Epicenter
- 60.407° N, 151.743° 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
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.168 km WNW of Nikiski, Alaska · 18429 days ago · 128 km deep · 66 km away
- 4.358 km WNW of Happy Valley, Alaska · 18420 days ago · 100 km deep · 65 km away
- 4.758 km E of Pedro Bay, Alaska · 18399 days ago · 38 km deep · 95 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000fry. Read Wed, Sep 23, 2026, 4:52 AM UTC.