Alaska earthquakes

M3.5 earthquake 28 km N of Paxson, Alaska

A magnitude 3.5 earthquake struck 28 km N of Paxson, Alaska on Sun, Oct 10, 2021, 10:18 PM AKDT (06:18 UTC), 5 km (3 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: 3.5 (ml), minor
Local time: Sun, Oct 10, 2021, 10:18 PM AKDT
UTC: 2021-10-11 06:18:30 UTC
Depth: 5.1 km (3.2 mi), shallow
Epicenter: 63.339° N, 145.507° W
Region: Alaska
Felt reports: 1
Strongest shaking: IV, light shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: IV, light shaking
Peak ground acceleration: 3.6% of gravity
Peak ground velocity: -0.1 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 183

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 21 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 ak021d1sb34t (also filed as us6000ftmt). Read Sun, Sep 27, 2026, 1:55 PM UTC.