...future and make a mega tsunami? by a landslide hitting the ocean?
wiping out half of the usa? (prediction of course)

and I Learned it on history channel in my science class

by a landslide hitting the ocean?
wiping out half of the usa? (prediction of course)
and I Learned it on history channel in my science class
or if you saw it like I did tell me what show it was on the history channel