Alaska earthquakes

M2.8 earthquake 243 km ESE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 243 km ESE of Chiniak, Alaska on Mon, Feb 19, 2024, 9:38 PM AKST (06:38 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 238 km SE of Chiniak, 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: 2.8 (ml), micro
Local time: Mon, Feb 19, 2024, 9:38 PM AKST
UTC: 2024-02-20 06:38:49 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.679° N, 148.638° 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 8.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: Operator assigned
Station coverage gap: 219°, poorly surrounded by stations
Stations used: 19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 16 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000m48h (also filed as ak0242cg7k5o). Read Wed, Sep 30, 2026, 9:25 PM UTC.