Tsunami

A tsunami is a wave or a group of high-energy waves and size that occur when an extraordinary phenomenon vertically displaces a large mass of water. The recent tsunamis have been in Chile on February 27, 2010 in the Indian Ocean on December 26, 2004 and in Hokkaido on July 12, 1993.

The best prevention to suffer less damage in a tsunami is the existence of natural barriers such as coral reefs, mangroves and coastal vegetation.