Alaska earthquakes

M3.4 earthquake 134 km SSE of Sand Point, Alaska

A magnitude 3.4 earthquake struck 134 km SSE of Sand Point, Alaska on Mon, Oct 19, 2020, 6:26 PM AKDT (02:26 UTC), 30 km (18 mi) below the surface.

A larger quake followed: M5.6 130 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: Mon, Oct 19, 2020, 6:26 PM AKDT
UTC: 2020-10-20 02:26:44 UTC
Depth: 29.6 km (18.4 mi), shallow
Epicenter: 54.280° N, 159.499° 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 7.4 km horizontally, 14.5 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 213°, 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. Forecast134 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 201.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000c87f (also filed as ak020di9cki1). Read Sun, Sep 27, 2026, 7:44 AM UTC.