Alaska earthquakes

M2.0 earthquake 149 km WSW of Adak, Alaska

A magnitude 2.0 earthquake struck 149 km WSW of Adak, Alaska on Mon, Aug 28, 2023, 9:20 PM HADT (06:20 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.7 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.0 (ml), micro
Local time: Mon, Aug 28, 2023, 9:20 PM HADT
UTC: 2023-08-29 06:20:39 UTC
Depth: 10.6 km (6.6 mi), shallow
Epicenter: 51.444° N, 178.685° 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.

Stations used: 31

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 159 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak023b2o7lwr (also filed as av92023866). Read Wed, Sep 30, 2026, 11:47 PM UTC.