Alaska earthquakes

M3.7 earthquake 84 km ESE of Sand Point, Alaska

A magnitude 3.7 earthquake struck 84 km ESE of Sand Point, Alaska on Mon, Sep 6, 2021, 1:53 PM AKDT (21:53 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.3 131 km SSE of Perryville, 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: 3.7 (mb), minor
Local time: Mon, Sep 6, 2021, 1:53 PM AKDT
UTC: 2021-09-06 21:53:33 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 55.136° N, 159.220° 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 2.3 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.50
Depth from: Operator assigned
Station coverage gap: 145°
Stations used: 29

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast84 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 2 in the 30 days before it.

After

The first 60 of 197.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000f8pm (also filed as ak021bg5my9h). Read Wed, Sep 23, 2026, 3:51 AM UTC.