Alaska earthquakes

M1.9 earthquake 91 km W of Adak, Alaska

A magnitude 1.9 earthquake struck 91 km W of Adak, Alaska on Mon, Jan 23, 2017, 1:48 PM HAST (23:48 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M4.6 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.9 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Mon, Jan 23, 2017, 1:48 PM HAST
UTC: 2017-01-23 23:48:05 UTC
Depth: 11.5 km (7.1 mi), shallow
Epicenter: 51.836° N, 177.959° 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: 8

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 59 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01712fc910 (also filed as ak15169630). Read Sat, Oct 3, 2026, 12:07 PM UTC.