Which of the following natural disak disatres do you think is the most dioryying earthavake stunamie thundersihorms, of floods?whay

Every disastre is frightening, but I think the most worrying disastre is stunami. Why? Do you remember tsunami at Aceh? Many victims died less than 30 minutes. Everybody screaming, crying, praying, they never thought this is will happen, I hope this never happen again.