M5.0 earthquake 55 km NE of Atka, Alaska
A magnitude 5.0 earthquake struck 55 km NE of Atka, Alaska on Fri, Apr 17, 1981, 4:59 AM GMT-11 (15:59 UTC), 33 km (20 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1981-04-17 15:59:05 UTC
- Depth
- 32.5 km (20.2 mi), shallow
- Epicenter
- 52.479° N, 173.529° 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 2.0 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001d6v. Read Tue, Sep 22, 2026, 12:09 PM UTC.