Alaska earthquakes

M2.6 earthquake 9 km S of Atka, Alaska

A magnitude 2.6 earthquake struck 9 km S of Atka, Alaska on Thu, Jul 1, 2021, 5:46 PM HADT (02:46 UTC), 101 km (63 mi) below the surface.

A larger quake followed: M3.7 60 km WSW of Atka, Alaska. This one was a foreshock.

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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: 2.6 (ml), micro
Local time: Thu, Jul 1, 2021, 5:46 PM HADT
UTC: 2021-07-02 02:46:50 UTC
Depth: 101.1 km (62.8 mi), intermediate-depth
Epicenter: 52.107° N, 174.201° 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 15.2 km horizontally, 9.6 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 194°, poorly surrounded by stations
Stations used: 18

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 13 in the 30 days before it.

After

The first 60 of 147.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f750 (also filed as ak0218eotciz). Read Thu, Sep 24, 2026, 9:48 AM UTC.