Alaska earthquakes

M2.9 earthquake 85 km NW of Cold Bay, Alaska

A magnitude 2.9 earthquake struck 85 km NW of Cold Bay, Alaska on Mon, Aug 12, 2024, 4:36 AM AKDT (12:36 UTC), 223 km (138 mi) below the surface.

A larger quake followed: M3.0 31 km NNE of Cold Bay, 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
2.9 (ml), micro
Local time
UTC
2024-08-12 12:36:24 UTC
Depth
222.9 km (138.5 mi), intermediate-depth
Epicenter
55.684° N, 163.758° 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 5.8 km horizontally, 11.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
118°
Stations used
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 2 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000nt6j (also filed as ak024acba22j). Read Tue, Sep 29, 2026, 10:59 PM UTC.