Alaska earthquakes

M1.6 earthquake 63 km W of Karluk, Alaska

A magnitude 1.6 earthquake struck 63 km W of Karluk, Alaska on Sun, Aug 5, 2018, 12:48 PM AKDT (20:48 UTC), 86 km (54 mi) below the surface.

A larger quake followed: M3.4 92 km WSW of Karluk, Alaska. This one was a foreshock.

Naknek forecast More in Alaska

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 1.6 (ml), micro
Local time: Sun, Aug 5, 2018, 12:48 PM AKDT
UTC: 2018-08-05 20:48:12 UTC
Depth: 86.3 km (53.6 mi), intermediate-depth
Epicenter: 57.541° N, 155.510° 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: 19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 111 in the 60 days after this one and 45 in the 30 days before it.

After

The first 60 of 111.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0189z7tamd (also filed as ak20056074, aacse0189z7tamd). Read Wed, Sep 30, 2026, 4:17 PM UTC.