Alaska earthquakes

M4.1 earthquake 230 km SE of Chiniak, Alaska

A magnitude 4.1 earthquake struck 230 km SE of Chiniak, Alaska on Thu, Jan 25, 2018, 4:01 AM AKST (13:01 UTC), 21 km (13 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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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 4.1 (mb), light
Local time: Thu, Jan 25, 2018, 4:01 AM AKST
UTC: 2018-01-25 13:01:24 UTC
Depth: 21.2 km (13.2 mi), shallow
Epicenter: 56.033° N, 149.825° 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 8.4 km horizontally, 8.8 km in depth
Magnitude uncertainty: ±0.37
Depth from: From location
Station coverage gap: 160°
Stations used: 72

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 us2000cphk (also filed as ak18194656, ak01815k6l2m). Read Wed, Sep 30, 2026, 11:33 AM UTC.