Alaska earthquakes

M3.1 earthquake 231 km SE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 231 km SE of Chiniak, Alaska on Sat, Dec 22, 2018, 11:39 PM AKST (08:39 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.6 271 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: 3.1 (ml), minor
Local time: Sat, Dec 22, 2018, 11:39 PM AKST
UTC: 2018-12-23 08:39:39 UTC
Depth: 4.7 km (2.9 mi), shallow
Epicenter: 56.247° N, 149.409° 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.

Stations used: 31

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 157 in the 60 days after this one and 42 in the 30 days before it.

After

The first 60 of 157.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018gejut3i (also filed as aacse018gejut3i). Read Tue, Sep 22, 2026, 9:41 PM UTC.