Category: Floods and Flash Floods

The deadliest floods in world history show how rainfall, rivers, storm surge, famine, disease, infrastructure, and vulnerability can combine into catastrophe.

Flash floods form when intense rain or sudden water release sends runoff into channels faster than people can react. Speed, depth, debris, and surprise make them deadly.

Floods happen when water arrives faster than land, rivers, drains, or coastlines can handle. Heavier rainfall and more development are raising risk in many places.