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                                                               Tsunami

 A tsunami or tsunami is a complex event that involves a group of waves of high energy and variable size that can produce an extraordinary phenomenon vertically displace a large body of water. In 2011, there was a tsunami and a seismic in Japan, it was found off the coast of Hanshu, it lasted six minutes and caused much damage.
The Japanese State Police Agency confirmed 15,845 deaths, 3,380 missing persons, and 5,893 injured.