M4.2 earthquake 161 km SW of Adak, Alaska
A magnitude 4.2 earthquake struck 161 km SW of Adak, Alaska on Wed, May 7, 1975, 8:16 AM GMT-10 (18:16 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1975-05-07 18:16:15 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 50.969° N, 178.446° 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
- Stations used
- 10
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 usp0000ayd. Read Thu, Oct 1, 2026, 2:40 PM UTC.