Alaska earthquakes

M3.0 earthquake 266 km ESE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 266 km ESE of Chiniak, Alaska on Wed, Jan 24, 2018, 12:34 AM AKST (09:34 UTC), 20 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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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Wed, Jan 24, 2018, 12:34 AM AKST
UTC: 2018-01-24 09:34:15 UTC
Depth: 20.1 km (12.5 mi), shallow
Epicenter: 56.390° N, 148.514° 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 9.7 km horizontally, 10.2 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 199°, poorly surrounded by stations
Stations used: 50

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 us1000cf0w (also filed as ak18300120, ak01813ugk2t). Read Mon, Sep 28, 2026, 9:16 PM UTC.