Alaska earthquakes

M3.5 earthquake 247 km W of Adak, Alaska

A magnitude 3.5 earthquake struck 247 km W of Adak, Alaska on Sun, Dec 4, 2022, 5:49 PM GMT+12 (05:49 UTC), 118 km (73 mi) below the surface.

A larger quake followed: M6.3 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 3.5 (ml), minor
Local time: Sun, Dec 4, 2022, 5:49 PM GMT+12
UTC: 2022-12-04 05:49:34 UTC
Depth: 118.0 km (73.3 mi), intermediate-depth
Epicenter: 51.873° N, 179.774° E
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 6.2 km horizontally, 4.1 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 130°
Stations used: 14

Nearby

Within 100 km, magnitude 1.5 and up: 145 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 145.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000j945 (also filed as ak022fj2x1n7). Read Wed, Sep 30, 2026, 3:11 AM UTC.