Alaska earthquakes

M3.0 earthquake 169 km SE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 169 km SE of Chiniak, Alaska on Tue, Jan 23, 2018, 10:55 PM AKST (07:55 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: 3.0 (ml), minor
Local time: Tue, Jan 23, 2018, 10:55 PM AKST
UTC: 2018-01-24 07:55:09 UTC
Depth: 23.7 km (14.7 mi), shallow
Epicenter: 56.463° N, 150.458° 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 2.5 km horizontally, 13.4 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 253°, poorly surrounded by stations
Stations used: 19

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 us1000cf08 (also filed as ak18300086, ak01813te5u4). Read Tue, Sep 29, 2026, 12:32 PM UTC.