Alaska earthquakes

M3.8 earthquake 256 km SE of Chiniak, Alaska

A magnitude 3.8 earthquake struck 256 km SE of Chiniak, Alaska on Tue, Dec 26, 2023, 8:11 PM AKST (05:11 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M4.3 205 km SE of Chiniak, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude: 3.8 (ml), minor
Local time: Tue, Dec 26, 2023, 8:11 PM AKST
UTC: 2023-12-27 05:11:50 UTC
Depth: 13.6 km (8.4 mi), shallow
Epicenter: 55.994° N, 149.292° 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 8.2 km horizontally, 6.9 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 184°, poorly surrounded by stations
Stations used: 49

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 10 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lzyv (also filed as ak023gl41x7w). Read Mon, Sep 28, 2026, 3:42 PM UTC.