Alaska earthquakes

M3.2 earthquake 216 km SE of Chiniak, Alaska

A magnitude 3.2 earthquake struck 216 km SE of Chiniak, Alaska on Tue, Jan 23, 2018, 9:42 PM AKST (06:42 UTC), 20 km (12 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: 3.2 (ml), minor
Local time: Tue, Jan 23, 2018, 9:42 PM AKST
UTC: 2018-01-24 06:42:37 UTC
Depth: 19.9 km (12.4 mi), shallow
Epicenter: 56.206° N, 149.829° 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 9.1 km horizontally, 9.9 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 235°, poorly surrounded by stations
Stations used: 27

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 us1000cezl (also filed as ak01813sq0io, ak18300056). Read Mon, Sep 28, 2026, 9:51 PM UTC.