M4.5 earthquake 114 km WSW of Adak, Alaska
A magnitude 4.5 earthquake struck 114 km WSW of Adak, Alaska on Wed, Dec 10, 1975, 4:40 PM GMT-11 (03:40 UTC), 66 km (41 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1975-12-11 03:40:38 UTC
- Depth
- 66.0 km (41.0 mi), shallow
- Epicenter
- 51.431° N, 178.130° 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
- 17
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 usp0000dvs. Read Wed, Sep 23, 2026, 5:04 AM UTC.