But floods occur in many other ways, heavy rains and thawing snowfall can overwhelm rivers, storm surges caused by hurricanes and tsunamis inundate the coastline, landslides and mudflows can displace large volumes of water.

• 但是，洪水的暴发也有其它的情况，暴雨和积雪熔化可导致河水泛滥，暴风雨和海啸引发的洪水会淹没海岸，并引发泥石流和滑波，从而分流了大量洪水。