Regular tsunamis are destructive, but mega tsunamis are on another level. Could one really reach skyscraper heights? How are they formed, and what would happen if the biggest one ever hit? Scientists ...

Regular tsunamis are destructive, but mega tsunamis are on another level. Could one really reach skyscraper heights? How are they formed, and what would happen if the biggest one ever hit?

Ryo Tatsuki, a Japanese prophet known for her eerie accuracy, has predicted a catastrophic mega-tsunami set to hit Japan ... in the annals of history as the biggest catastrophes in the world.