PM Alaskan Daylight Time, a powerful 7.3 magnitude earthquake occurred just south of Sand Point AK, part of the Aleutian Island cha

A tsunami warning that was later downgraded was issued for several coastal communities after the earthquake struck south of Sand Point.

A magnitude 7.3 earthquake struck Wednesday afternoon just south of the northern Aleutian Islands in Alaska. The epicenter was roughly 600 miles southwest of Anchorage, Alaska. A tsunami warning was in effect for less than an hour,