Alaska earthquakes

M2.8 earthquake 140 km S of False Pass, Alaska

A magnitude 2.8 earthquake struck 140 km S of False Pass, Alaska on Wed, Dec 28, 2022, 8:42 AM AKST (17:42 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.9 161 km S of False Pass, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
2.8 (ml), micro
Local time
UTC
2022-12-28 17:42:35 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
53.617° N, 163.804° 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 4.8 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
241°, poorly surrounded by stations
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 165 in the 60 days after this one and 63 in the 30 days before it.

After

The first 60 of 165.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000j4h8 (also filed as ak022gmyx2tm). Read Mon, Sep 28, 2026, 11:18 PM UTC.