An Etymological Dictionary of Astronomy and Astrophysics

A huge wave, caused by undersea earthquakes, volcanic eruptions, or, more rarely, by asteroid or meteoroid impact (as in the case of the K-T extinction).

See also: From Japanese tsunami, from tsu “harbor” + nami “waves.”

A huge wave, caused by undersea earthquakes, volcanic eruptions, or, more rarely, by asteroid or meteoroid impact (as in the case of the K-T extinction).

See also: From Japanese tsunami, from tsu “harbor” + nami “waves.”