Alaska earthquakes

M3.0 earthquake 46 km SW of Pilot Point, Alaska

A magnitude 3.0 earthquake struck 46 km SW of Pilot Point, Alaska on Mon, Dec 31, 2018, 9:18 PM AKST (06:18 UTC), 133 km (83 mi) below the surface.

A larger quake followed: M4.4 55 km E of Port Heiden, Alaska. This one was a foreshock.

Naknek 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: 3.0 (ml), minor
Local time: Mon, Dec 31, 2018, 9:18 PM AKST
UTC: 2019-01-01 06:18:20 UTC
Depth: 133.2 km (82.8 mi), intermediate-depth
Epicenter: 57.230° N, 158.043° W
Region: Alaska
Strongest shaking: III, weak shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: III, weak shaking
Peak ground acceleration: 405.0% of gravity
Peak ground velocity: 0.2 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 33

Nearest places

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

Naknek, AlaskaPopulation 544. Forecast177 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 10 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0191r7unc (also filed as us2000j3th, aacse0191r7uq7). Read Sun, Sep 27, 2026, 7:05 PM UTC.