Alaska earthquakes

M2.2 earthquake 272 km W of Adak, Alaska

A magnitude 2.2 earthquake struck 272 km W of Adak, Alaska on Tue, Sep 27, 2016, 3:43 AM GMT+12 (15:43 UTC), 63 km (39 mi) below the surface.

A larger quake followed: M5.6 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.2 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Sep 27, 2016, 3:43 AM GMT+12
UTC: 2016-09-26 15:43:01 UTC
Depth: 62.5 km (38.8 mi), shallow
Epicenter: 51.477° N, 179.473° E
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: 18

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 58 in the 30 days before it.

After

The first 60 of 88.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak016cesaf9y (also filed as ak14055087). Read Sat, Oct 3, 2026, 11:31 PM UTC.