M1.8 earthquake 66 km W of Nanwalek, Alaska

A magnitude 1.8 earthquake struck 66 km W of Nanwalek, Alaska on Wed, Jul 18, 2018, 9:01 AM AKDT (17:01 UTC), 109 km (68 mi) below the surface.

A larger quake followed: M3.6 66 km SE of Pedro Bay, 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: at least 201 in the 60 days after this one and 188 in the 30 days before it.

The first 60 of at least 201.

From the USGS Earthquake Hazards Program and its partner networks, event ak01895e2noe (also filed as ak19894447). Read Sat, Oct 3, 2026, 3:44 AM UTC.