Alaska earthquakes

M2.1 earthquake 45 km ENE of Adak, Alaska

A magnitude 2.1 earthquake struck 45 km ENE of Adak, Alaska on Mon, Sep 7, 2020, 1:39 AM HADT (10:39 UTC), 127 km (79 mi) below the surface.

A larger quake followed: M5.3 76 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.1 (ml), micro
Local time
UTC
2020-09-07 10:39:10 UTC
Depth
126.9 km (78.9 mi), intermediate-depth
Epicenter
52.002° N, 176.009° 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
17

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 66 in the 30 days before it.

After

The first 60 of 146.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020bja2tpg. Read Mon, Sep 28, 2026, 11:29 AM UTC.