Alaska earthquakes

M3.5 earthquake 52 km ESE of Atka, Alaska

A magnitude 3.5 earthquake struck 52 km ESE of Atka, Alaska on Fri, May 27, 2022, 7:01 AM HADT (16:01 UTC), 74 km (46 mi) below the surface.

A larger quake followed: M5.3 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.5 (mb), minor
Local time: Fri, May 27, 2022, 7:01 AM HADT
UTC: 2022-05-27 16:01:15 UTC
Depth: 74.0 km (46.0 mi), intermediate-depth
Epicenter: 52.053° N, 173.475° 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 10.1 km horizontally, 11.0 km in depth
Magnitude uncertainty: ±0.17
Depth from: From location
Station coverage gap: 195°, poorly surrounded by stations
Stations used: 33

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 64 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000hd4x (also filed as ak0226rdj7js, ak0226rdj752). Read Wed, Sep 30, 2026, 9:08 PM UTC.