Alaska earthquakes

M2.4 earthquake 130 km SSE of Perryville, Alaska

A magnitude 2.4 earthquake struck 130 km SSE of Perryville, Alaska on Tue, Dec 14, 2021, 7:32 PM AKST (04:32 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M2.9 185 km SE of Perryville, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-12-15 04:32:04 UTC
Depth
17.8 km (11.1 mi), shallow
Epicenter
54.833° N, 158.335° 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.

Location uncertainty
About 5.8 km horizontally, 9.3 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
270°, poorly surrounded by stations
Stations used
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 76 in the 60 days after this one and 60 in the 30 days before it.

After

The first 60 of 76.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000gbht (also filed as ak021g194q12). Read Tue, Sep 22, 2026, 9:28 PM UTC.