Alaska earthquakes

M2.8 earthquake 232 km SE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 232 km SE of Chiniak, Alaska on Thu, Jan 25, 2018, 6:21 PM AKST (03:21 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M5.1 233 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: 2.8 (ml), micro
Local time: Thu, Jan 25, 2018, 6:21 PM AKST
UTC: 2018-01-26 03:21:34 UTC
Depth: 20.4 km (12.7 mi), shallow
Epicenter: 56.337° N, 149.262° 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 9.6 km horizontally, 11.0 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 222°, poorly surrounded by stations
Stations used: 32

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 us2000craz (also filed as ak018171vwl2, ak18241917). Read Mon, Sep 28, 2026, 4:03 PM UTC.