Tsunamis (Japanese: 津 波 tsunami Tsuna state, "waves at the port" or "waves") is a group of water waves caused by the relocation of the water volume big is the ocean or large lakes earthquake eruption. and other underwater volcanic eruption. (Including detonators, explosives, nuclear submarine), landslides, glaciers slipping. Falling meteorites and other distractions Whether above or below water Are likely to cause a tsunami at all.