Alaska earthquakes

M2.8 earthquake 128 km WSW of Adak, Alaska

A magnitude 2.8 earthquake struck 128 km WSW of Adak, Alaska on Thu, Sep 10, 2026, 8:41 PM HADT (05:41 UTC), 9 km (5 mi) below the surface.

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

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Thu, Sep 10, 2026, 8:41 PM HADT
UTC: 2026-09-11 05:41:43 UTC
Depth: 8.7 km (5.4 mi), shallow
Epicenter: 51.473° N, 178.376° 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. If you felt it, tell the USGS: every report sharpens the shaking map.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 1.8 km horizontally, 8.3 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 194°, poorly surrounded by stations
Stations used: 19

Nearby

Within 100 km, magnitude 1.5 and up: 53 since this one and 116 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 us7000th3g (also filed as av94428296, aka2026rzsycg). Read Tue, Sep 22, 2026, 7:24 AM UTC.