ELI5: How does a Tsunami actually kill you? : r/explainlikeimfive – Reddit

A tsunami is like that, only much bigger: as much as a hundred times bigger. What is dangerous is that it can pick up a lot of stuff: sand, small rocks, large rocks, trees, cars, small buildings, small boats, etc.; and it’s moving fast. If you get caught by a tsunami, it’s like being caught by a river with a lot of debris in it.

https://www.reddit.com/r/explainlikeimfive/comments/3co2nn/eli5_how_does_a_tsunami_actually_kill_you/