M1.6 earthquake 69 km W of Tyonek, Alaska

A magnitude 1.6 earthquake struck 69 km W of Tyonek, Alaska on Sun, Jun 27, 2021, 1:29 AM AKDT (09:29 UTC), 108 km (67 mi) below the surface.

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

A larger quake followed: M4.3 25 km W of Salamatof, 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: 194 in the 60 days after this one and 92 in the 30 days before it.

The first 60 of 194.

From the USGS Earthquake Hazards Program and its partner networks, event ak02186j6zaf. Read Mon, Sep 28, 2026, 1:47 AM UTC.