The mainshock was preceded by a M4 foreshock on July 17 at 14:44 UTC. The Alaska Earthquake Center located nearly 3,200 aftershocks through the end of July, including about 60 aftershocks with magnitudes 4.0 or greater. The largest aftershock of magnitude 6.0 occurred on July 18 at 19:48.

Last Modified: April 25, 2024