Alaska earthquakes

M1.5 earthquake 58 km SW of Cantwell, Alaska

A magnitude 1.5 earthquake struck 58 km SW of Cantwell, Alaska on Fri, Aug 11, 2017, 2:20 AM AKDT (10:20 UTC), 78 km (49 mi) below the surface.

A larger quake followed: M4.5 58 km NNE of Petersville, Alaska. This one was a foreshock.

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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: 1.5 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Fri, Aug 11, 2017, 2:20 AM AKDT
UTC: 2017-08-11 10:20:42 UTC
Depth: 78.4 km (48.7 mi), intermediate-depth
Epicenter: 63.023° N, 149.791° 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: 43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 91 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017a8yx3ro (also filed as ak16495976). Read Sat, Oct 3, 2026, 10:43 PM UTC.