In April 1946 two large undersea earthquakes occurred off the Alaskan coast and a tidal wave, nearly 100 feet high, crashed onto the shore at Unimak Island, Alaska. A lighthouse located 30 feet above sea level, was smashed to pieces, killing five people. Five hours later, a Pacific-wide tsunami struck the Hawaiian islands, resulting in more than 170 deaths.
Hawaiian Tsunami
Dec 25, 2017