Alaska earthquakes

M1.9 earthquake 90 km W of Adak, Alaska

A magnitude 1.9 earthquake struck 90 km W of Adak, Alaska on Fri, Feb 7, 2020, 11:39 PM HAST (09:39 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M5.0 71 km WNW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.9 (ml), micro
Local time
UTC
2020-02-08 09:39:26 UTC
Depth
5.9 km (3.7 mi), shallow
Epicenter
51.864° N, 177.955° 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
18

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0201snjun1. Read Wed, Sep 30, 2026, 8:38 PM UTC.