Alaska earthquakes

M2.4 earthquake 32 km E of Atka, Alaska

A magnitude 2.4 earthquake struck 32 km E of Atka, Alaska on Sat, Jul 17, 2021, 7:16 PM HADT (04:16 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.7 67 km ESE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-07-18 04:16:46 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
52.164° N, 173.722° 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
24

Nearby

Within 100 km, magnitude 1.5 and up: 110 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 110.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021956fbrj. Read Thu, Sep 24, 2026, 1:55 PM UTC.