Alaska earthquakes

M3.2 earthquake 38 km ENE of Adak, Alaska

A magnitude 3.2 earthquake struck 38 km ENE of Adak, Alaska on Sat, Jul 24, 2021, 12:46 AM HADT (09:46 UTC), 146 km (90 mi) below the surface.

A larger quake followed: M4.1 77 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.2 (ml), minor
Local time
UTC
2021-07-24 09:46:42 UTC
Depth
145.5 km (90.4 mi), intermediate-depth
Epicenter
52.028° N, 176.137° 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
36

Nearby

Within 100 km, magnitude 1.5 and up: 166 in the 60 days after this one and 82 in the 30 days before it.

After

The first 60 of 166.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219f6szvp. Read Tue, Sep 29, 2026, 12:33 AM UTC.