Alaska earthquakes

M4.5 earthquake 245 km SE of Chiniak, Alaska

A magnitude 4.5 earthquake struck 245 km SE of Chiniak, Alaska on Tue, Dec 29, 2020, 12:41 AM AKST (09:41 UTC), 10 km (6 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: 4.5 (mb), light
Local time: Tue, Dec 29, 2020, 12:41 AM AKST
UTC: 2020-12-29 09:41:35 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 55.885° N, 149.788° 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 7.3 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.13
Depth from: Operator assigned
Station coverage gap: 148°
Stations used: 61

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 9 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 us6000d3z1 (also filed as ak020gq583eu). Read Sat, Sep 26, 2026, 11:09 AM UTC.