Alaska earthquakes

M2.7 earthquake 238 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 238 km SE of Chiniak, Alaska on Mon, Mar 13, 2023, 1:06 AM AKDT (09:06 UTC), 16 km (10 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: 2.7 (ml), micro
Local time: Mon, Mar 13, 2023, 1:06 AM AKDT
UTC: 2023-03-13 09:06:49 UTC
Depth: 16.1 km (10.0 mi), shallow
Epicenter: 56.111° N, 149.495° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 9.2 km horizontally, 8.1 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 197°, poorly surrounded by stations
Stations used: 28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 29 in the 60 days after this one and 14 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000jlu1 (also filed as ak0233b83fvg). Read Mon, Sep 28, 2026, 7:01 AM UTC.