Alaska earthquakes

M3.1 earthquake 23 km WSW of Sand Point, Alaska

A magnitude 3.1 earthquake struck 23 km WSW of Sand Point, Alaska on Thu, Dec 16, 2021, 2:38 AM AKST (11:38 UTC), 98 km (61 mi) below the surface.

A larger quake followed: M3.2 82 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.

Open the live map with earthquakes

The earthquake

Magnitude: 3.1 (ml), minor
Local time: Thu, Dec 16, 2021, 2:38 AM AKST
UTC: 2021-12-16 11:38:24 UTC
Depth: 98.5 km (61.2 mi), intermediate-depth
Epicenter: 55.220° N, 160.812° 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 3.2 km horizontally, 6.7 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 131°
Stations used: 48

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast24 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 82 in the 60 days after this one and 60 in the 30 days before it.

After

The first 60 of 82.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000gcra (also filed as ak021g30vfna). Read Wed, Sep 23, 2026, 11:18 PM UTC.