On June 22, 2009 at 11:28 am AKDT (19:28 UTC) the Alaska Earthquake Information Center located a magnitude 5.4 earthquake, 38 miles (62 km) deep, about 17 miles east of Skwentna.

The mainshock was felt widely in southcentral Alaska and as far as Homer to the south, Fairbanks in the north and Cordova in the east. Some of the larger aftershocks were also felt but over a smaller area. No reports of damage were received.