M4.3 earthquake 44 km SE of Adak, Alaska
A magnitude 4.3 earthquake struck 44 km SE of Adak, Alaska on Mon, May 12, 1975, 1:51 PM GMT-10 (23:51 UTC), 55 km (34 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
- 1975-05-12 23:51:25 UTC
- Depth
- 55.0 km (34.2 mi), shallow
- Epicenter
- 51.567° N, 176.223° 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
- 22
Nearby
Within 100 km, magnitude 1.5 and up: 1 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 usp0000b0g. Read Tue, Sep 22, 2026, 12:11 PM UTC.