Alaska earthquakes

M2.3 earthquake Alaska Peninsula

A magnitude 2.3 earthquake struck in the Alaska Peninsula on Mon, Dec 10, 2018, 6:25 PM AKST (03:25 UTC), 95 km (59 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: 2.3 (ml), micro
Local time: Mon, Dec 10, 2018, 6:25 PM AKST
UTC: 2018-12-11 03:25:37 UTC
Depth: 95.2 km (59.2 mi), intermediate-depth
Epicenter: 57.045° N, 157.283° 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.

Stations used: 26

Nearest places

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

Naknek, AlaskaPopulation 544. Forecast188 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 51 in the 60 days after this one and 12 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 ak018fumch07 (also filed as aacse018fumch07). Read Mon, Sep 28, 2026, 2:28 PM UTC.