A tsunami (plural: tsunamis or tsunami; from Japanese: 津波, lit. "harbor wave";
is a series of water waves
Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami.
Tsunami and tides both produce waves of water that move inland, but in the case of tsunami the inland movement of water is much greater and lasts for a longer period, giving the impression of an incredibly high tide
tsunamies are big waves that come from the sea and makes a big disaster. below water there is alot of potential to make a tsunamies.if the tsunamies are to big thy can damage the oceans basins.
Tsunamis waves do not resemble normal waves, because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason they are often referred to as tidal waves.