Alaska earthquakes

M2.7 earthquake 242 km ESE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 242 km ESE of Chiniak, Alaska on Wed, May 21, 2025, 11:09 PM AKDT (07:09 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.4 254 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: Wed, May 21, 2025, 11:09 PM AKDT
UTC: 2025-05-22 07:09:31 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.872° N, 148.504° 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 4.3 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 238°, poorly surrounded by stations
Stations used: 21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 4 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000qgcd (also filed as ak0256iyjbc0). Read Tue, Sep 29, 2026, 2:40 PM UTC.