Alaska earthquakes

M2.7 earthquake 112 km SE of Atka, Alaska

A magnitude 2.7 earthquake struck 112 km SE of Atka, Alaska on Tue, Aug 18, 2026, 12:06 PM HADT (21:06 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.7 81 km SE of Atka, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 2.7 (ml), micro
Local time: Tue, Aug 18, 2026, 12:06 PM HADT
UTC: 2026-08-18 21:06:16 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 51.403° N, 173.189° 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 4.0 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.13
Depth from: Operator assigned
Station coverage gap: 307°, poorly surrounded by stations
Stations used: 16

Nearby

Within 100 km, magnitude 1.5 and up: 38 since this one and 172 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 us6000tlty (also filed as aka2026qipgdz). Read Wed, Sep 30, 2026, 10:30 AM UTC.