Alaska earthquakes

M2.9 earthquake 216 km ESE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 216 km ESE of Chiniak, Alaska on Wed, Mar 4, 2020, 12:58 PM AKST (21:58 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: Wed, Mar 4, 2020, 12:58 PM AKST
UTC: 2020-03-04 21:58:00 UTC
Depth: 20.8 km (12.9 mi), shallow
Epicenter: 56.587° N, 149.249° 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, 10.6 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 214°, poorly surrounded by stations
Stations used: 34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 18 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us600089ul (also filed as ak0202y78vfe). Read Thu, Sep 24, 2026, 3:39 PM UTC.