Alaska earthquakes

M3.0 earthquake 201 km ESE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 201 km ESE of Chiniak, Alaska on Sat, Mar 27, 2021, 7:25 PM AKDT (03:25 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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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Sat, Mar 27, 2021, 7:25 PM AKDT
UTC: 2021-03-28 03:25:37 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.775° N, 149.322° 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 8.1 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: Operator assigned
Station coverage gap: 237°, poorly surrounded by stations
Stations used: 22

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 us6000dx7s (also filed as ak0213zxp48t). Read Fri, Sep 25, 2026, 12:18 PM UTC.