M4.3 earthquake 112 km S of Akhiok, Alaska
A magnitude 4.3 earthquake struck 112 km S of Akhiok, Alaska on Sun, Aug 23, 1981, 4:43 PM GMT-9 (01:43 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb), light
- Local time
- UTC
- 1981-08-24 01:43:38 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 55.939° N, 154.342° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 usp0001ffc. Read Tue, Sep 22, 2026, 4:16 PM UTC.