Editing Natural disaster (section)

===Tsunami===
[[File:1755 Lisbon earthquake.jpg|thumb|right|300x300px|1755 copper engraving depicting [[Lisbon]] in ruins and in flames after the [[1755 Lisbon earthquake]]. A [[tsunami]] overwhelms the ships in the harbor.]]
{{main|Tsunami}}
{{see also|List of historical tsunamis}}

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 [[2004 Indian Ocean earthquake and tsunami|2004 Boxing Day tsunami]], or by landslides such as the [[1958 Lituya Bay, Alaska earthquake and megatsunami|one in 1958 at Lituya Bay, Alaska]], or by volcanic eruptions such as the [[Minoan eruption|ancient eruption of Santorini]]. On March 11, 2011, a [[2011 Tōhoku earthquake and tsunami|tsunami occurred near Fukushima, Japan]] and spread through the Pacific Ocean.