A 7.3 magnitude earthquake struck near Sand Point, Alaska, on Wednesday, prompting a tsunami advisory from the National Weather Service.

ANCHORAGE, Alaska (AP) — Communities along a 700-mile stretch of Alaska’s southern coast ordered residents to higher ground after a powerful offshore earthquake Wednesday, but officials quickly downgraded and then canceled a tsunami warning for the region. There were no reports of significant damage..

An earthquake hit 50-miles off the coast, with the destructive power 30 times more powerful than the Hiroshima bomb.