Alaska earthquakes

M2.9 earthquake 241 km ESE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 241 km ESE of Chiniak, Alaska on Mon, Feb 17, 2020, 3:16 AM AKST (12:16 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M5.2 250 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: Mon, Feb 17, 2020, 3:16 AM AKST
UTC: 2020-02-17 12:16:59 UTC
Depth: 21.4 km (13.3 mi), shallow
Epicenter: 56.589° N, 148.759° 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 10.5 km horizontally, 11.6 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 243°, poorly surrounded by stations
Stations used: 30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 15 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us600088ab (also filed as ak02027l1i6s). Read Thu, Sep 24, 2026, 11:26 AM UTC.