Alaska earthquakes

M3.7 earthquake 229 km SE of Chiniak, Alaska

A magnitude 3.7 earthquake struck 229 km SE of Chiniak, Alaska on Wed, May 20, 2020, 8:51 AM AKDT (16:51 UTC), 10 km (6 mi) below the surface.

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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: 3.7 (ml), minor
Local time: Wed, May 20, 2020, 8:51 AM AKDT
UTC: 2020-05-20 16:51:28 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.116° N, 149.690° 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 7.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: Operator assigned
Station coverage gap: 214°, poorly surrounded by stations
Stations used: 75

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 31 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70009lue (also filed as ak0206hglv50). Read Tue, Sep 29, 2026, 8:29 AM UTC.