M1.5 earthquake 54 km W of Nanwalek, Alaska

A magnitude 1.5 earthquake struck 54 km W of Nanwalek, Alaska on Tue, Sep 28, 2021, 2:24 PM AKDT (22:24 UTC), 73 km (45 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M1.7 42 km ENE 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.

An automatic solution; a seismologist may revise it.

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

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event ak021cgjvrpn. Read Wed, Sep 23, 2026, 5:05 AM UTC.