Alaska earthquakes

M1.9 earthquake 281 km W of Adak, Alaska

A magnitude 1.9 earthquake struck 281 km W of Adak, Alaska on Fri, Jul 23, 2021, 9:57 AM GMT+12 (21:57 UTC), 154 km (96 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
1.9 (ml), micro
Local time
UTC
2021-07-22 21:57:46 UTC
Depth
154.4 km (95.9 mi), intermediate-depth
Epicenter
52.056° N, 179.274° 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
14

Nearby

Within 100 km, magnitude 1.5 and up: 119 in the 60 days after this one and 43 in the 30 days before it.

After

The first 60 of 119.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219c2xvdz. Read Sat, Sep 26, 2026, 10:06 PM UTC.