Alaska earthquakes

M3.1 earthquake 266 km SE of Sand Point, Alaska

A magnitude 3.1 earthquake struck 266 km SE of Sand Point, Alaska on Sat, Sep 19, 2020, 12:03 AM AKDT (08:03 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M3.9 180 km SE 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: Sat, Sep 19, 2020, 12:03 AM AKDT
UTC: 2020-09-19 08:03:22 UTC
Depth: 19.0 km (11.8 mi), shallow
Epicenter: 53.559° N, 157.745° 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 7.6 km horizontally, 8.1 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 244°, poorly surrounded by stations
Stations used: 40

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast266 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 1 in the 30 days before it.

After

Before

3.9219 km SE of Sand Point, AlaskaThu, Sep 17, 11:44 AM AKDT · 2202 days ago · 10 km deep · 48 km away

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c58u (also filed as ak020c334fu2). Read Mon, Sep 28, 2026, 8:59 PM UTC.