Alaska earthquakes

M3.1 earthquake 59 km NE of Yakutat, Alaska

A magnitude 3.1 earthquake struck 59 km NE of Yakutat, Alaska on Sun, Aug 29, 2021, 11:10 AM AKDT (19:10 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 51 km NNW of Yakutat, 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
3.1 (ml), minor
Local time
UTC
2021-08-29 19:10:39 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
59.883° N, 138.897° 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 3.3 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
129°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 30 in the 30 days before it.

After

The first 60 of 196.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000f5hl (also filed as ak021b2vw3le). Read Mon, Sep 28, 2026, 9:21 AM UTC.