Alaska earthquakes

M3.3 earthquake 65 km ENE of Atka, Alaska

A magnitude 3.3 earthquake struck 65 km ENE of Atka, Alaska on Wed, Dec 27, 2023, 6:18 AM HAST (16:18 UTC), 183 km (114 mi) below the surface.

A larger quake followed: M4.2 50 km NNW of Atka, Alaska. This one was a foreshock.

Map

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

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The earthquake

Magnitude: 3.3 (ml), minor
Local time: Wed, Dec 27, 2023, 6:18 AM HAST
UTC: 2023-12-27 16:18:04 UTC
Depth: 183.4 km (114.0 mi), intermediate-depth
Epicenter: 52.387° N, 173.298° 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 12.9 km horizontally, 6.1 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 173°
Stations used: 31

Nearby

Within 100 km, magnitude 1.5 and up: 51 in the 60 days after this one and 26 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000m3p2 (also filed as ak023glan47g). Read Thu, Oct 1, 2026, 12:46 AM UTC.