Alaska earthquakes

M2.6 earthquake 18 km SSW of False Pass, Alaska

A magnitude 2.6 earthquake struck 18 km SSW of False Pass, Alaska on Sat, Dec 16, 2023, 12:50 PM AKST (21:50 UTC), 93 km (58 mi) below the surface.

A larger quake followed: M4.0 89 km SSW of False Pass, 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
2.6 (ml), micro
Local time
UTC
2023-12-16 21:50:13 UTC
Depth
92.8 km (57.7 mi), intermediate-depth
Epicenter
54.703° N, 163.521° 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 8.7 km horizontally, 4.9 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
176°
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: 94 in the 60 days after this one and 49 in the 30 days before it.

After

The first 60 of 94.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000m0gn (also filed as ak023g36wbe1). Read Mon, Sep 28, 2026, 5:46 AM UTC.