M6.1 earthquake 106 km SE of Adak, Alaska
A magnitude 6.1 earthquake struck 106 km SE of Adak, Alaska on Mon, Mar 21, 1927, 1:59 PM GMT-11 (00:59 UTC), 15 km (9 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
- 1927-03-22 00:59:21 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 51.144° N, 175.641° 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 3.1 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem909159. Read Wed, Sep 30, 2026, 10:05 PM UTC.