Wednesday’s magnitude 7.3 earthquake off Alaska's Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years — including one that shook communities almost exactly two years earlier.

The quake that struck Alaska’s southern coast on Wednesday, July 16 is part of a larger sequence that may continue to unfold in destructive ways.

A large 7.3M earthquake has occurred in the Aleutian Islands of Alaska. A Tsunami Warning has been posted for parts of the Aleutian Islands and South Alaska. The level of tsunami danger is being evaluated for other US and Canadian Pacific coasts in North America.