Alaska earthquakes

M3.1 earthquake 105 km SSW of Sand Point, Alaska

A magnitude 3.1 earthquake struck 105 km SSW of Sand Point, Alaska on Thu, Apr 12, 2018, 2:17 AM AKDT (10:17 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.9 112 km SSW 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: 3.1 (ml), minor
Local time: Thu, Apr 12, 2018, 2:17 AM AKDT
UTC: 2018-04-12 10:17:10 UTC
Depth: 2.8 km (1.8 mi), shallow
Epicenter: 54.404° N, 160.828° 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 3.9 km horizontally, 9.0 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 204°, poorly surrounded by stations
Stations used: 32

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast106 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 74 in the 60 days after this one and 42 in the 30 days before it.

After

The first 60 of 74.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000e1cj (also filed as ak19232533, ak0184ouvefr). Read Wed, Sep 30, 2026, 10:18 PM UTC.