M3.0 earthquake Alaska Peninsula

A magnitude 3.0 earthquake struck in the Alaska Peninsula on Fri, Aug 10, 2018, 1:42 PM AKDT (21:42 UTC), 132 km (82 mi) below the surface.

A larger quake followed: M3.3 37 km ESE of Perryville, Alaska. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 15 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event aacse018a7i274t. Read Sun, Oct 4, 2026, 9:40 PM UTC.