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?

According to a new study published in the journal Science, the landslide was caused by the collapse of a glacier in Dickson ...

Researchers found that the impact triggered mega ripples on the seafloor ... is now Mexico’s Yucatan peninsula triggered a massive tsunami unlike anything ever documented.