Alaska earthquakes

M2.0 earthquake 211 km W of Adak, Alaska

A magnitude 2.0 earthquake struck 211 km W of Adak, Alaska on Sat, Sep 25, 2021, 11:04 PM HADT (08:04 UTC), 104 km (65 mi) below the surface.

A larger quake followed: M3.1 190 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.0 (ml), micro
Local time
UTC
2021-09-26 08:04:05 UTC
Depth
104.0 km (64.6 mi), intermediate-depth
Epicenter
51.788° N, 179.693° 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
16

Nearby

Within 100 km, magnitude 1.5 and up: 89 in the 60 days after this one and 80 in the 30 days before it.

After

The first 60 of 89.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cd0coxj. Read Thu, Sep 24, 2026, 9:43 AM UTC.