Alaska earthquakes

M3.4 earthquake 94 km SE of Sand Point, Alaska

A magnitude 3.4 earthquake struck 94 km SE of Sand Point, Alaska on Wed, Mar 17, 2021, 3:48 AM AKDT (11:48 UTC), 23 km (15 mi) below the surface.

A larger quake followed: M4.4 122 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: 3.4 (ml), minor
Local time: Wed, Mar 17, 2021, 3:48 AM AKDT
UTC: 2021-03-17 11:48:15 UTC
Depth: 23.4 km (14.5 mi), shallow
Epicenter: 54.634° N, 159.656° 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 3.6 km horizontally, 10.0 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 201°, poorly surrounded by stations
Stations used: 108

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast95 kmSE

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000dzai (also filed as ak0213hvogp0). Read Thu, Sep 24, 2026, 2:36 AM UTC.