Alaska earthquakes

M3.5 earthquake 88 km NW of False Pass, Alaska

A magnitude 3.5 earthquake struck 88 km NW of False Pass, Alaska on Sat, Dec 25, 2021, 5:40 AM AKST (14:40 UTC), 243 km (151 mi) below the surface.

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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
3.5 (ml), minor
Local time
UTC
2021-12-25 14:40:48 UTC
Depth
243.4 km (151.2 mi), intermediate-depth
Epicenter
55.518° N, 164.186° 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 10.3 km horizontally, 5.0 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
153°
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 3 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000gf8j (also filed as ak021ghyic7w). Read Wed, Sep 23, 2026, 9:54 AM UTC.