Alaska earthquakes

M2.4 earthquake 135 km SSE of Atka, Alaska

A magnitude 2.4 earthquake struck 135 km SSE of Atka, Alaska on Sun, Jun 27, 2021, 6:55 PM HADT (03:55 UTC), 32 km (20 mi) below the surface.

A larger quake followed: M3.9 111 km SSW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-06-28 03:55:00 UTC
Depth
31.6 km (19.6 mi), shallow
Epicenter
51.007° N, 173.795° 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
20

Nearby

Within 100 km, magnitude 1.5 and up: 87 in the 60 days after this one and 11 in the 30 days before it.

After

The first 60 of 87.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021883b7lt. Read Thu, Sep 24, 2026, 10:41 AM UTC.