Alaska earthquakes

M1.9 earthquake 256 km WSW of Adak, Alaska

A magnitude 1.9 earthquake struck 256 km WSW of Adak, Alaska on Mon, Aug 10, 2026, 10:49 AM GMT+12 (22:49 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.6 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.9 (ml), micro
Local time: Mon, Aug 10, 2026, 10:49 AM GMT+12
UTC: 2026-08-09 22:49:06 UTC
Depth: 15.0 km (9.3 mi), shallow
Epicenter: 51.354° N, 179.753° 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 6.3 km horizontally, 3.0 km in depth
Magnitude uncertainty: ±0.20
Station coverage gap: 198°, poorly surrounded by stations
Stations used: 10

Nearby

Within 100 km, magnitude 1.5 and up: 119 since this one and 71 in the 30 days before it.

After

The first 60 of 119.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event aka2026pscmdl (also filed as av94372563). Read Thu, Oct 1, 2026, 12:50 AM UTC.