Alaska earthquakes

M3.1 earthquake 285 km ESE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 285 km ESE of Chiniak, Alaska on Fri, Dec 21, 2018, 9:34 PM AKST (06:34 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.2 273 km SE of Chiniak, Alaska. This one was a foreshock.

Anchorage forecast More in Alaska

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: Fri, Dec 21, 2018, 9:34 PM AKST
UTC: 2018-12-22 06:34:09 UTC
Depth: 4.8 km (3.0 mi), shallow
Epicenter: 56.497° N, 148.036° 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: 55

Nearest places

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

Anchorage, AlaskaPopulation 289,600. Forecast536 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 94 in the 60 days after this one and 64 in the 30 days before it.

After

The first 60 of 94.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018gcv3gis (also filed as aacse018gcv3gis). Read Tue, Sep 22, 2026, 8:44 PM UTC.