Alaska earthquakes

M2.9 earthquake 236 km ESE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 236 km ESE of Chiniak, Alaska on Fri, Feb 2, 2018, 4:54 AM AKST (13:54 UTC), 22 km (13 mi) below the surface.

A larger quake followed: M5.4 252 km ESE 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: 2.9 (ml), micro
Local time: Fri, Feb 2, 2018, 4:54 AM AKST
UTC: 2018-02-02 13:54:25 UTC
Depth: 21.5 km (13.4 mi), shallow
Epicenter: 56.551° N, 148.906° 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 8.6 km horizontally, 9.9 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 199°, poorly surrounded by stations
Stations used: 60

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 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 us2000czwx (also filed as ak0181isspy1, ak18417675). Read Mon, Sep 28, 2026, 2:09 PM UTC.