Alaska earthquakes

M3.2 earthquake 208 km SE of Chiniak, Alaska

A magnitude 3.2 earthquake struck 208 km SE of Chiniak, Alaska on Tue, Jan 23, 2018, 10:05 PM AKST (07:05 UTC), 25 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: 3.2 (ml), minor
Local time: Tue, Jan 23, 2018, 10:05 PM AKST
UTC: 2018-01-24 07:05:44 UTC
Depth: 24.8 km (15.4 mi), shallow
Epicenter: 56.202° N, 150.022° 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 8.9 km horizontally, 15.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 229°, poorly surrounded by stations
Stations used: 48

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 us1000cezv (also filed as ak18300067, ak01813t3j6l). Read Mon, Sep 28, 2026, 4:27 PM UTC.