Alaska earthquakes

M2.0 earthquake 67 km ESE of Adak, Alaska

A magnitude 2.0 earthquake struck 67 km ESE of Adak, Alaska on Thu, Feb 22, 2018, 10:12 PM HAST (08:12 UTC), 44 km (27 mi) below the surface.

A larger quake followed: M4.6 48 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.0 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Thu, Feb 22, 2018, 10:12 PM HAST
UTC: 2018-02-23 08:12:09 UTC
Depth: 44.0 km (27.3 mi), shallow
Epicenter: 51.602° N, 175.759° 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: 11

Nearby

Within 100 km, magnitude 1.5 and up: 100 in the 60 days after this one and 75 in the 30 days before it.

After

The first 60 of 100.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0182hfust9 (also filed as ak18576622). Read Thu, Oct 1, 2026, 11:41 PM UTC.