Alaska earthquakes

M3.1 earthquake 30 km S of Atka, Alaska

A magnitude 3.1 earthquake struck 30 km S of Atka, Alaska on Fri, Jan 13, 2023, 8:26 AM HAST (18:26 UTC), 84 km (52 mi) below the surface.

A larger quake followed: M4.3 65 km NNW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Fri, Jan 13, 2023, 8:26 AM HAST
UTC: 2023-01-13 18:26:19 UTC
Depth: 84.5 km (52.5 mi), intermediate-depth
Epicenter: 51.929° N, 174.273° 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.

Location uncertainty: About 18.0 km horizontally, 23.2 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 249°, poorly surrounded by stations
Stations used: 12

Nearby

Within 100 km, magnitude 1.5 and up: 55 in the 60 days after this one and 32 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 us6000jjwt (also filed as ak023lsuxk8). Read Wed, Sep 30, 2026, 10:29 AM UTC.