M4.9 earthquake 88 km SSW of Atka, Alaska
A magnitude 4.9 earthquake struck 88 km SSW of Atka, Alaska on Tue, Jul 14, 1981, 9:51 PM GMT-10 (07:51 UTC), 41 km (25 mi) below the surface.
A larger quake followed: M5.0 100 km SSW of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1981-07-15 07:51:55 UTC
- Depth
- 41.0 km (25.5 mi), shallow
- Epicenter
- 51.487° N, 174.787° 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.
Nearby
Within 100 km, magnitude 1.9 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001eq3. Read Tue, Sep 22, 2026, 7:44 PM UTC.