Alaska earthquakes

M2.2 earthquake 256 km W of Adak, Alaska

A magnitude 2.2 earthquake struck 256 km W of Adak, Alaska on Mon, Jul 26, 2021, 5:01 AM GMT+12 (17:01 UTC), 130 km (81 mi) below the surface.

A larger quake followed: M4.8 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.2 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-07-25 17:01:49 UTC
Depth
129.7 km (80.6 mi), intermediate-depth
Epicenter
51.895° N, 179.642° E
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: 135 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 135.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219gyu6ik. Read Thu, Oct 1, 2026, 6:02 AM UTC.