Alaska earthquakes

M2.9 earthquake 233 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 233 km SE of Chiniak, Alaska on Fri, Apr 16, 2021, 11:11 AM AKDT (19:11 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.5 226 km SE of Chiniak, Alaska. This one was a foreshock.

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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, Apr 16, 2021, 11:11 AM AKDT
UTC: 2021-04-16 19:11:54 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 55.971° N, 149.913° 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 8.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: Operator assigned
Station coverage gap: 226°, poorly surrounded by stations
Stations used: 49

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 42 in the 60 days after this one and 21 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e14y (also filed as ak0214vmci5z). Read Thu, Sep 24, 2026, 10:20 AM UTC.