A natural disaster is a sudden event that causes widespread destruction, major collateral damage, or loss of life, brought about by forces other than the acts of human beings. A natural disaster might be caused by earthquakes, flooding, volcanic eruption, landslide, cyclones, etc. To be classified as a disaster, it must have profound environmental effects or loss of life and frequently causes financial loss.

Ten deadliest natural disasters by highest estimated death toll excluding epidemics and famines