Alaska earthquakes

M2.9 earthquake 55 km SW of Atka, Alaska

A magnitude 2.9 earthquake struck 55 km SW of Atka, Alaska on Thu, May 13, 2021, 9:20 PM HADT (06:20 UTC), 51 km (32 mi) below the surface.

A larger quake followed: M5.1 75 km SE of Atka, Alaska. This one was a foreshock.

Map

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: Thu, May 13, 2021, 9:20 PM HADT
UTC: 2021-05-14 06:20:10 UTC
Depth: 51.1 km (31.8 mi), shallow
Epicenter: 51.821° N, 174.744° 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 10.2 km horizontally, 53.6 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 228°, poorly surrounded by stations
Stations used: 40

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 52 in the 30 days before it.

After

The first 60 of 69.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000elkv (also filed as ak02165ppexw). Read Sun, Sep 27, 2026, 10:15 AM UTC.