M4.1 earthquake 54 km SSE of Adak, Alaska
A magnitude 4.1 earthquake struck 54 km SSE of Adak, Alaska on Wed, Aug 21, 1974, 5:58 PM GMT-10 (03:58 UTC), 44 km (27 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-08-22 03:58:31 UTC
- Depth
- 44.0 km (27.3 mi), shallow
- Epicenter
- 51.422° N, 176.319° 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
- 11
Nearby
Within 100 km, magnitude 1.5 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 usp00007qp. Read Sat, Oct 3, 2026, 6:30 AM UTC.