M6.1 earthquake 34 km ESE of Adak, Alaska
A magnitude 6.1 earthquake struck 34 km ESE of Adak, Alaska on Tue, Mar 28, 1961, 1:29 AM GMT-11 (12:29 UTC), 45 km (28 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.1 (mw), strong
- Local time
- UTC
- 1961-03-28 12:29:15 UTC
- Depth
- 45.4 km (28.2 mi), shallow
- Epicenter
- 51.712° N, 176.208° 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.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearby
Within 100 km, magnitude 2.5 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 iscgem17290186 (also filed as ushis2489). Read Tue, Sep 22, 2026, 8:11 AM UTC.