Alaska earthquakes

M2.9 earthquake 214 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 214 km SE of Chiniak, Alaska on Fri, Mar 31, 2023, 9:08 PM AKDT (05:08 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M3.6 247 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: 2.9 (ml), micro
Local time: Fri, Mar 31, 2023, 9:08 PM AKDT
UTC: 2023-04-01 05:08:49 UTC
Depth: 14.2 km (8.8 mi), shallow
Epicenter: 56.121° N, 150.040° 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 9.3 km horizontally, 8.6 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 228°, poorly surrounded by stations
Stations used: 51

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 15 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k29s (also filed as ak02346kxkq5). Read Sun, Sep 27, 2026, 10:16 AM UTC.