Alaska earthquakes

M2.3 earthquake 26 km NW of Anchor Point, Alaska

A magnitude 2.3 earthquake struck 26 km NW of Anchor Point, Alaska on Thu, Sep 23, 2021, 11:00 AM AKDT (19:00 UTC), 85 km (53 mi) below the surface.

A larger quake followed: M3.2 67 km WNW of Happy Valley, 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
2.3 (ml), micro
Local time
UTC
2021-09-23 19:00:38 UTC
Depth
85.4 km (53.1 mi), intermediate-depth
Epicenter
59.919° N, 152.221° W
Region
Alaska
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
89

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021c889mtb (also filed as us7000fdvg). Read Thu, Sep 24, 2026, 9:22 AM UTC.