Alaska earthquakes

M3.3 earthquake 272 km SE of Chiniak, Alaska

A magnitude 3.3 earthquake struck 272 km SE of Chiniak, Alaska on Tue, Jan 30, 2018, 1:14 PM AKST (22:14 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M5.4 252 km ESE of Chiniak, Alaska. This one was a foreshock.

Kodiak 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: 3.3 (ml), minor
Local time: Tue, Jan 30, 2018, 1:14 PM AKST
UTC: 2018-01-30 22:14:38 UTC
Depth: 11.0 km (6.9 mi), shallow
Epicenter: 55.810° N, 149.271° 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 8.1 km horizontally, 8.2 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 219°, poorly surrounded by stations
Stations used: 36

Nearest places

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

Kodiak, AlaskaPopulation 6,253. Forecast291 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 201.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000cym3 (also filed as ak0181dzb1dp, ak18413387). Read Mon, Sep 28, 2026, 4:11 PM UTC.