Alaska earthquakes

M3.0 earthquake 273 km ESE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 273 km ESE of Chiniak, Alaska on Sun, Mar 20, 2022, 1:15 PM AKDT (21:15 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M3.6 267 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: Sun, Mar 20, 2022, 1:15 PM AKDT
UTC: 2022-03-20 21:15:26 UTC
Depth: 21.2 km (13.2 mi), shallow
Epicenter: 56.787° N, 148.018° 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 5.9 km horizontally, 10.8 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 242°, poorly surrounded by stations
Stations used: 70

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 7 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000h6av (also filed as ak0223n01sp8). Read Wed, Sep 30, 2026, 10:28 AM UTC.