Alaska earthquakes

M2.9 earthquake 221 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 221 km SE of Chiniak, Alaska on Fri, May 25, 2018, 12:58 PM AKDT (20:58 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.8 224 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, May 25, 2018, 12:58 PM AKDT
UTC: 2018-05-25 20:58:45 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.164° N, 149.799° 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 5.1 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 204°, poorly surrounded by stations
Stations used: 58

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 202.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000ef7s (also filed as ak19694414, ak0186o56izx, aacse0186o56izx). Read Sun, Sep 27, 2026, 8:58 AM UTC.