Alaska earthquakes

M3.0 earthquake 69 km S of Sand Point, Alaska

A magnitude 3.0 earthquake struck 69 km S of Sand Point, Alaska on Wed, Oct 20, 2021, 6:07 PM AKDT (02:07 UTC), 27 km (17 mi) below the surface.

A larger quake followed: M3.3 114 km SSE of Sand Point, Alaska. This one was a foreshock.

Sand Point forecast More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.0 (ml), minor
Local time: Wed, Oct 20, 2021, 6:07 PM AKDT
UTC: 2021-10-21 02:07:40 UTC
Depth: 26.6 km (16.5 mi), shallow
Epicenter: 54.722° N, 160.641° 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 2.7 km horizontally, 8.6 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 192°, poorly surrounded by stations
Stations used: 26

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast69 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 187 in the 60 days after this one and 12 in the 30 days before it.

After

The first 60 of 187.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000g9t4 (also filed as ak021di98hfu). Read Wed, Sep 23, 2026, 4:19 AM UTC.