Disasters with highest death tolls
1972 Iran Blizzard
The Iran Blizzard of February 1972 was the deadliest blizzard in history. A week-long period of low temperatures and severe winter storms, lasting 3–9 February 1972, resulted in the deaths of approximately 4,000 people. Storms dumped more than 3 metres (9.8 ft) of snow across rural areas in northwestern, central and southern Iran.