Alaska earthquakes

M1.5 earthquake 70 km W of Karluk, Alaska

A magnitude 1.5 earthquake struck 70 km W of Karluk, Alaska on Mon, Aug 19, 2019, 3:29 AM AKDT (11:29 UTC), 77 km (48 mi) below the surface.

A larger quake followed: M3.5 56 km SE of King Salmon, Alaska. This one was a foreshock.

Naknek forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.5 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2019-08-19 11:29:12 UTC
Depth
77.0 km (47.8 mi), intermediate-depth
Epicenter
57.487° N, 155.628° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
1.5ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
1.5ML, local (Richter)AACSEPreliminary

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
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 41 in the 30 days before it.

After

The first 60 of 108.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak019am7v6gm (also filed as aacse019am7v6gm). Read Sat, Oct 3, 2026, 6:37 AM UTC.