Alaska earthquakes

M2.3 earthquake 101 km NNW of Atka, Alaska

A magnitude 2.3 earthquake struck 101 km NNW of Atka, Alaska on Mon, May 22, 2017, 2:30 AM HADT (11:30 UTC), 158 km (98 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: 2.3 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Mon, May 22, 2017, 2:30 AM HADT
UTC: 2017-05-22 11:30:01 UTC
Depth: 157.6 km (97.9 mi), intermediate-depth
Epicenter: 53.005° N, 174.908° 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: 14

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 6 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0176j11hcg (also filed as ak16175922). Read Sat, Oct 3, 2026, 12:53 PM UTC.