Alaska earthquakes

M3.1 earthquake 62 km S of Sand Point, Alaska

A magnitude 3.1 earthquake struck 62 km S of Sand Point, Alaska on Mon, Dec 31, 2018, 4:50 AM AKST (13:50 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M3.7 87 km SSE of King Cove, 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: Mon, Dec 31, 2018, 4:50 AM AKST
UTC: 2018-12-31 13:50:40 UTC
Depth: 17.4 km (10.8 mi), shallow
Epicenter: 54.778° N, 160.583° 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 4.7 km horizontally, 13.3 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 185°, poorly surrounded by stations
Stations used: 18

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast62 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 86 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 86.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000j7gy (also filed as ak20611192, ak018grv7436, aacse018grv7436). Read Tue, Sep 29, 2026, 10:43 PM UTC.