Alaska earthquakes

M1.5 earthquake 56 km E of Adak, Alaska

A magnitude 1.5 earthquake struck 56 km E of Adak, Alaska on Wed, Mar 10, 2021, 12:19 AM HAST (10:19 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M1.8 59 km SSW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.5 (ml), micro
Local time
UTC
2021-03-10 10:19:12 UTC
Depth
46.7 km (29.0 mi), shallow
Epicenter
51.780° N, 175.833° 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
14

Nearby

Within 100 km, magnitude 1.5 and up: 138 in the 60 days after this one and 61 in the 30 days before it.

After

The first 60 of 138.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02136a5dnr. Read Thu, Sep 24, 2026, 9:19 AM UTC.