Alaska earthquakes

M3.0 earthquake 73 km WNW of Atka, Alaska

A magnitude 3.0 earthquake struck 73 km WNW of Atka, Alaska on Thu, Dec 22, 2022, 12:38 AM HAST (10:38 UTC), 133 km (83 mi) below the surface.

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

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Thu, Dec 22, 2022, 12:38 AM HAST
UTC: 2022-12-22 10:38:18 UTC
Depth: 133.1 km (82.7 mi), intermediate-depth
Epicenter: 52.425° N, 175.210° 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 19.9 km horizontally, 19.0 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 210°, poorly surrounded by stations
Stations used: 12

Nearby

Within 100 km, magnitude 1.5 and up: 71 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 71.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000jb4n (also filed as ak022gcxi3jt). Read Wed, Sep 30, 2026, 6:36 PM UTC.