On July 9, 1958, an earthquake along the Fairweather Fault in the Alaska Panhandle loosened about 40 million cubic yards of rock high above the northeastern shore of Lituya Bay.
The force of the wave removed all trees and vegetation from elevations as high as 1720 feet above sea level. Millions of trees were uprooted and swept away by the wave. This is the highest wave that has ever been known.