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

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

Just after the quake, NOAA's National Tsunami Warning Center issued Tsunami Warnings for the immediate Alaska coastline from Kennedy Entrance to Unimak Pass, including all of Kodiak Island, Chignik and Cold Bay. The U.S. Coast Guard reported it evacuated personnel from its base at Kodiak to higher ground and had two air crews stand ready to assist.