Alaska earthquakes

M1.9 earthquake 67 km W of Karluk, Alaska

A magnitude 1.9 earthquake struck 67 km W of Karluk, Alaska on Wed, Dec 20, 2017, 9:10 PM AKST (06:10 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M3.4 84 km WNW of Karluk, 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: 1.9 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Wed, Dec 20, 2017, 9:10 PM AKST
UTC: 2017-12-21 06:10:02 UTC
Depth: 75.5 km (46.9 mi), intermediate-depth
Epicenter: 57.664° N, 155.574° 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: 40

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 98 in the 60 days after this one and 44 in the 30 days before it.

After

The first 60 of 98.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017gb7eyb9 (also filed as ak17647887). Read Fri, Oct 2, 2026, 10:04 PM UTC.