Alaska earthquakes

M3.3 earthquake 100 km SSE of Sand Point, Alaska

A magnitude 3.3 earthquake struck 100 km SSE of Sand Point, Alaska on Thu, Jul 15, 2021, 9:35 AM AKDT (17:35 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M3.6 129 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: 3.3 (ml), minor
Local time: Thu, Jul 15, 2021, 9:35 AM AKDT
UTC: 2021-07-15 17:35:13 UTC
Depth: 17.2 km (10.7 mi), shallow
Epicenter: 54.521° N, 159.832° 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, 13.2 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 209°, poorly surrounded by stations
Stations used: 24

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast100 kmSSE

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 us7000em9x (also filed as ak02190fnxar). Read Wed, Sep 23, 2026, 2:57 PM UTC.