Alaska earthquakes

M2.4 earthquake 51 km NE of Adak, Alaska

A magnitude 2.4 earthquake struck 51 km NE of Adak, Alaska on Mon, Nov 8, 2021, 2:18 PM HAST (00:18 UTC), 172 km (107 mi) below the surface.

A larger quake followed: M2.9 98 km NNE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-11-09 00:18:50 UTC
Depth
171.5 km (106.6 mi), intermediate-depth
Epicenter
52.150° N, 176.030° 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
28

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 49 in the 30 days before it.

After

The first 60 of 108.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ednble3. Read Thu, Sep 24, 2026, 7:04 AM UTC.