Alaska earthquakes

M2.8 earthquake 253 km ESE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 253 km ESE of Chiniak, Alaska on Sun, May 30, 2021, 4:44 PM AKDT (00:44 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 267 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: 2.8 (ml), micro
Local time: Sun, May 30, 2021, 4:44 PM AKDT
UTC: 2021-05-31 00:44:06 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.545° N, 148.587° 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 11.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 277°, poorly surrounded by stations
Stations used: 15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 44 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 us7000eb9h (also filed as ak0216xqf1tq). Read Fri, Sep 25, 2026, 5:40 PM UTC.