Alaska earthquakes

M2.9 earthquake 256 km W of Adak, Alaska

A magnitude 2.9 earthquake struck 256 km W of Adak, Alaska on Wed, Aug 5, 2026, 8:53 AM GMT+12 (20:53 UTC), 198 km (123 mi) below the surface.

A larger quake followed: M4.4 263 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.9 (ml), micro
Local time: Wed, Aug 5, 2026, 8:53 AM GMT+12
UTC: 2026-08-04 20:53:19 UTC
Depth: 197.9 km (123.0 mi), intermediate-depth
Epicenter: 51.989° N, 179.648° E
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 9.7 km horizontally, 8.2 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 158°
Stations used: 20

Nearby

Within 100 km, magnitude 1.5 and up: 97 since this one and 52 in the 30 days before it.

After

The first 60 of 97.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tj20 (also filed as aka2026pismwx). Read Thu, Oct 1, 2026, 12:34 AM UTC.