Category
page 1Megatsunami
impact event
collision of two astronomical objects with measurable effects
.png)
megatsunami
thumb|right|upright=1.3|Diagram of the 1958 Lituya Bay earthquake and megatsunami|1958 Lituya Bay megatsunami, which proved the existence of megatsunamis
A megatsunami is an extremely large wave created by a substantial and sudden displacement of material into a body of water.