Alaska earthquakes

M3.1 earthquake 31 km ENE of Sand Point, Alaska

A magnitude 3.1 earthquake struck 31 km ENE of Sand Point, Alaska on Sat, Mar 21, 2020, 2:47 AM AKDT (10:47 UTC), 61 km (38 mi) below the surface.

A larger quake followed: M3.8 18 km SE of Nelson Lagoon, 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: 3.1 (ml), minor
Local time: Sat, Mar 21, 2020, 2:47 AM AKDT
UTC: 2020-03-21 10:47:53 UTC
Depth: 60.7 km (37.7 mi), shallow
Epicenter: 55.411° N, 160.026° 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 4.0 km horizontally, 8.1 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 94°
Stations used: 115

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast31 kmENE

Nearby

Within 100 km, magnitude 1.5 and up: 64 in the 60 days after this one and 16 in the 30 days before it.

After

The first 60 of 64.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70008dj2 (also filed as ak0203q4rmv0). Read Tue, Sep 29, 2026, 7:41 PM UTC.