 Complete the following phrase:  A tsunami plural: tsunamis or tsunami; from Japanese: 津波, lit. harbour wave; English pronunciation: tsuːˈnɑːmi, also known as a seismic sea wave or tidal wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Tsunamis can be caused by undersea earthquakes such as the 