Alaska earthquakes

M3.3 earthquake 51 km SE of Atka, Alaska

A magnitude 3.3 earthquake struck 51 km SE of Atka, Alaska on Wed, Jul 29, 2026, 11:32 AM HADT (20:32 UTC), 74 km (46 mi) below the surface.

A larger quake followed: M4.9 86 km SSE 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: 3.3 (ml), minor
Local time: Wed, Jul 29, 2026, 11:32 AM HADT
UTC: 2026-07-29 20:32:35 UTC
Depth: 73.9 km (45.9 mi), intermediate-depth
Epicenter: 51.911° N, 173.616° 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 13.2 km horizontally, 26.5 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 197°, poorly surrounded by stations
Stations used: 40

Nearby

Within 100 km, magnitude 1.5 and up: 121 in the 60 days after this one and 138 in the 30 days before it.

After

The first 60 of 121.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000th1s (also filed as aka2026oxprsc). Read Mon, Sep 28, 2026, 7:25 PM UTC.