Alaska earthquakes

M3.0 earthquake 259 km SE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 259 km SE of Chiniak, Alaska on Sun, Feb 11, 2018, 7:49 AM AKST (16:49 UTC), 9 km (5 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: 3.0 (ml), minor
Local time: Sun, Feb 11, 2018, 7:49 AM AKST
UTC: 2018-02-11 16:49:15 UTC
Depth: 8.7 km (5.4 mi), shallow
Epicenter: 55.802° N, 149.614° 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 4.0 km horizontally, 8.3 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 211°, poorly surrounded by stations
Stations used: 58

Nearest places

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

Kodiak, AlaskaPopulation 6,253. Forecast279 kmSE

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 us2000d56c (also filed as ak18465643, ak0181xqe219). Read Tue, Sep 29, 2026, 1:46 AM UTC.