Alaska earthquakes

M2.9 earthquake 228 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 228 km SE of Chiniak, Alaska on Wed, Jan 24, 2018, 1:09 PM AKST (22:09 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M5.3 254 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: 2.9 (ml), micro
Local time: Wed, Jan 24, 2018, 1:09 PM AKST
UTC: 2018-01-24 22:09:28 UTC
Depth: 24.3 km (15.1 mi), shallow
Epicenter: 56.105° N, 149.744° 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 9.8 km horizontally, 10.5 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 231°, poorly surrounded by stations
Stations used: 30

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 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 201.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000cf61 (also filed as ak18300357, ak0181421v1t). Read Mon, Sep 28, 2026, 9:16 PM UTC.