Alaska earthquakes

M3.4 earthquake 206 km SE of Chiniak, Alaska

A magnitude 3.4 earthquake struck 206 km SE of Chiniak, Alaska on Wed, Jan 24, 2018, 5:27 PM AKST (02:27 UTC), 19 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: 3.4 (ml), minor
Local time: Wed, Jan 24, 2018, 5:27 PM AKST
UTC: 2018-01-25 02:27:00 UTC
Depth: 19.4 km (12.1 mi), shallow
Epicenter: 56.528° N, 149.512° 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 7.8 km horizontally, 10.8 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 269°, poorly surrounded by stations
Stations used: 22

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 200 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 200.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000ci0z (also filed as ak01815ds8mr, ak18387589). Read Tue, Sep 29, 2026, 1:24 PM UTC.