Deadliest Natural Disasters in Recorded History

Data

Note: The Deadliest Natural Disasters in Recorded History

What the data shows

This list ranks the deadliest natural disasters by estimated death toll. Floods in China dominate the top of the table, while earthquakes and cyclones fill the rest of the list, most of them concentrated in Asia.

• The 1931 China floods rank first with an estimated 4,000,000 deaths, followed by the 1887 Yellow River flood with 2,000,000.
• The 1970 Bhola cyclone killed about 500,000 people in East Pakistan (now Bangladesh).
• The 2010 Haiti earthquake killed 316,000, the deadliest disaster of the modern era.
• The 1976 Tangshan earthquake in China killed roughly 300,000, and the 526 Antioch earthquake a similar number.
• The 1839 Coringa cyclone and the 1737 Calcutta cyclone each took about 300,000 lives.
• The 1920 Haiyuan earthquake killed 273,407 and the 1139 Ganja earthquake 230,000, completing the top ten.

Why floods top the list

Three of the four deadliest events are river floods in China. The Yellow and Yangtze rivers regularly carry enormous sediment loads that raise riverbeds, so when levees fail, hundreds of thousands of square kilometers of densely populated farmland can be submerged.

• The 1931 floods covered an area the size of England plus half of Scotland, submerging millions of acres of rice fields.
• The 1887 Yellow River flood happened when the river breached its dikes near Kaifeng, drowning millions.
• Historians sometimes call the Yellow River "China's Sorrow" because of its recurring flood disasters.

Earthquakes and cyclones

Earthquakes kill through collapsing buildings, and in densely built or poorly reinforced cities the toll can be catastrophic. Cyclones kill mainly through storm surge, the wall of seawater pushed ashore by the storm.

• The Tangshan quake destroyed nearly the entire city in seconds, most victims asleep at 3:42 a.m.
• The Bhola cyclone's storm surge flooded low-lying islands of the Ganges delta, home to millions.
• The Haiti earthquake struck a densely packed capital with buildings never designed to withstand strong shaking.
• Modern warning systems have cut cyclone death tolls sharply, but vulnerable deltas remain at risk.

Fun Facts

• The 1931 China floods were triggered by unusually heavy snowmelt and summer rains, followed by seven cyclones in one season.
• Antioch's 526 earthquake struck the Byzantine Empire's third-largest city and is the oldest disaster on the list.
• Between 1970 and 2020, the average death toll per major disaster fell dramatically thanks to forecasting and building codes.
• Cyclone Bhola remains the deadliest tropical cyclone ever recorded.
• The 1887 Yellow River flood is the second deadliest disaster in history and one of the reasons the river was later re-engineered.
• Records for death tolls are estimates; totals for ancient and pre-modern disasters vary widely among historians.
• Most of the top ten occurred in Asia, home to the world's densest river deltas and most active seismic zones.