Question

What is cause of Tsunami

Answer 1

Tsunami are the rhythmic waves which roll on to huge and string waves. They can be more than 40fts ! And can wipe out any hurdle coming on its way. There are a few reasons which can give ruse to such natural calamity. (1) it can be caused by cyclones, where high speed winds can cause such high wave series . (2) a meteorite fall can also cause such range of waves. (3) an under sea earthquake can also lead to such calamities. The Japan earthquake is the best example of such situation.

Answer 2

Tsunami are the high sea waves.
Tsunami are caused by
1. an earthquake 
2. the plate movement