Alaska earthquakes

M2.9 earthquake 52 km ESE of Atka, Alaska

A magnitude 2.9 earthquake struck 52 km ESE of Atka, Alaska on Tue, Aug 11, 2026, 5:02 PM HADT (02:02 UTC), 89 km (55 mi) below the surface.

A larger quake followed: M3.7 85 km SE of Atka, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 2.9 (ml), micro
Local time: Tue, Aug 11, 2026, 5:02 PM HADT
UTC: 2026-08-12 02:02:27 UTC
Depth: 89.1 km (55.3 mi), intermediate-depth
Epicenter: 51.988° N, 173.517° 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 12.2 km horizontally, 11.1 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 197°, poorly surrounded by stations
Stations used: 14

Nearby

Within 100 km, magnitude 1.5 and up: 51 since this one and 148 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tk6r (also filed as aka2026pwazcq). Read Tue, Sep 22, 2026, 9:28 PM UTC.