Alaska earthquakes

M2.8 earthquake 240 km WSW of Adak, Alaska

A magnitude 2.8 earthquake struck 240 km WSW of Adak, Alaska on Sat, Aug 15, 2026, 2:20 AM GMT-12 (14:20 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.3 151 km WSW of Adak, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Sat, Aug 15, 2026, 2:20 AM GMT-12
UTC: 2026-08-15 14:20:08 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 50.833° N, 179.660° 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 4.5 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.08
Depth from: Operator assigned
Station coverage gap: 242°, poorly surrounded by stations
Stations used: 35

Nearby

Within 100 km, magnitude 1.5 and up: 106 since this one and 50 in the 30 days before it.

After

The first 60 of 106.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tl9a (also filed as aka2026qcnqgf). Read Thu, Oct 1, 2026, 12:47 AM UTC.