The Deadliest Natural Disasters in History, Ranked

Picture a farming village on the plains of northern China in the summer of 1931. The rain has not stopped for weeks. The river that waters the fields has risen above its banks, then above the earth walls built to hold it, and now the water is moving across the land faster than people can walk. Within a few months, an area the size of England will be under water, and the deaths from drowning, hunger and disease that follow will be counted not in thousands but in millions.

Natural disasters are the most sudden way that large numbers of people die. On an ordinary day, around 170,000 people die worldwide from heart disease, cancer, infections, accidents and old age, and you can watch that total climb on our live death counter. A great disaster compresses months of that toll into a few hours, all in one place.

This article ranks the deadliest natural disasters in recorded history. A word of warning first: the further back you go, the less certain the numbers become. Where historians disagree, we show the range rather than pretend to a precision nobody has.

The ranking

Rank	Disaster	Year	Country	Estimated deaths
1	Central China floods	1931	China	422,000 to 4 million
2	Yellow River flood	1887	China	900,000 to 2 million
3	Shaanxi earthquake	1556	China	about 830,000
4	Bhola cyclone	1970	East Pakistan (now Bangladesh)	300,000 to 500,000
5	Tangshan earthquake	1976	China	242,000 (official) to 655,000
6	Indian Ocean earthquake and tsunami	2004	14 countries	about 227,000 to 230,000
7	Haiti earthquake	2010	Haiti	100,000 to 316,000
8	Haiyuan earthquake	1920	China	about 200,000 to 273,000
9	Cyclone Nargis	2008	Myanmar	about 138,000
10	Great Kanto earthquake	1923	Japan	about 105,000 to 143,000

Three things stand out immediately. Four of the top ten are in China, where vast, crowded river plains and active fault lines have combined for centuries. Floods and earthquakes dominate the list. And several of the deadliest events happened within living memory, which surprises most people who assume disasters were only this lethal in the distant past.

This list excludes famines and droughts, which unfold over years rather than days and are tangled up with war and government policy. We cover those separately below.

1. The 1931 China floods

After a long drought, heavy snow and then months of extreme rain fell across central China in 1930 and 1931. The Yangtze, Huai and Yellow rivers all flooded. In August 1931 the water reached the city of Wuhan and stayed for months.

The death toll is one of the most disputed in history. Contemporary Chinese government surveys counted around 140,000 drowned in the first wave. Later estimates that include deaths from starvation, cholera, typhoid and dysentery over the following year range from about 422,000 to as many as 3.7 or 4 million. Most modern historians treat the low millions as plausible but unproven.

What made it so deadly was not the water alone. When floods destroy crops, wells and sanitation in a densely populated farming region, the second wave of death comes from hunger and diarrhoeal disease. Contaminated drinking water still kills that way today, as our page on water-related diseases shows.

2. The 1887 Yellow River flood

The Yellow River is sometimes called "China's Sorrow". It carries so much silt that its bed rises over time, and for centuries people built ever-higher embankments to contain it. In September 1887 the dykes in Henan province failed and the river spread across the North China Plain.

Estimates range from about 900,000 to 2 million deaths, again including the famine and disease that followed. The river has changed course many times in recorded history, and each shift has been catastrophic for the people living in its path.

3. The 1556 Shaanxi earthquake

The deadliest earthquake ever recorded struck Shaanxi province on 23 January 1556. Imperial records put the death toll at around 830,000.

The magnitude was probably around 8, strong but not unusual. The reason it killed so many was how people lived. Millions in the region lived in yaodong, homes carved into soft cliffs of loess, a fine wind-blown soil. When the ground shook, the cliffs collapsed and buried entire families as they slept. It remains the clearest example of a rule that holds for every earthquake since: the shaking rarely kills people directly. Buildings do.

You can see the earthquakes happening around the world right now on our live earthquake map, which pulls data straight from the US Geological Survey.

Earthquakes: the deadliest of the modern era

Earthquakes account for the largest share of the most famous disasters of the last century. Here are the deadliest since 1900.

Earthquake	Year	Magnitude	Estimated deaths
Tangshan, China	1976	7.6	242,000 to 655,000
Haiti	2010	7.0	100,000 to 316,000
Indian Ocean (with tsunami)	2004	9.1	about 227,000
Haiyuan, China	1920	7.8	about 200,000 to 273,000
Great Kanto, Japan	1923	7.9	about 105,000 to 143,000
Turkmenistan (Ashgabat)	1948	7.3	about 10,000 to 110,000
Sichuan, China	2008	7.9	about 87,000
Kashmir, Pakistan	2005	7.6	about 86,000
Messina, Italy	1908	7.1	about 75,000 to 82,000
Turkey and Syria	2023	7.8	about 59,000

Magnitude and death toll are only loosely linked. The 2010 Haiti earthquake was a magnitude 7.0, far smaller in energy than the 2011 magnitude 9.0 earthquake off Japan, yet it killed several times more people. Haiti's capital was built largely of unreinforced concrete on poor foundations, close to the fault. Japan has the strictest building codes in the world. You can compare the two countries' wider health picture on our pages for Haiti and Japan.

The 2023 earthquakes in Turkey and Syria showed the same lesson in reverse: many of the buildings that collapsed had been built after modern codes were introduced, but the codes had not been enforced.

4. The 1970 Bhola cyclone

On 12 November 1970, a tropical cyclone drove a storm surge several metres high into the low-lying islands and coast of what was then East Pakistan. Most of the victims drowned in a single night. Estimates range from 300,000 to 500,000 deaths.

The disaster had political consequences. Anger at the slow relief effort from the government in West Pakistan fed directly into the independence war that created Bangladesh the following year.

The story since then is one of the great public health successes of our time. Bangladesh built thousands of cyclone shelters and a volunteer warning network that goes door to door before a storm. Cyclone Sidr in 2007 was similar in strength to Bhola but killed around 3,500 people, roughly one hundredth as many.

Cyclones and storms

Storm	Year	Where	Estimated deaths
Bhola cyclone	1970	Bangladesh	300,000 to 500,000
Haiphong typhoon	1881	Vietnam	up to 300,000 (poorly documented)
Bangladesh cyclone	1991	Bangladesh	about 138,000
Cyclone Nargis	2008	Myanmar	about 138,000
Super Typhoon Nina (and Banqiao dam failure)	1975	China	26,000 to over 200,000
Hurricane Mitch	1998	Central America	about 11,000 to 19,000
Galveston hurricane	1900	United States	6,000 to 12,000

Cyclone Nargis is the modern outlier. It hit the Irrawaddy Delta in Myanmar in May 2008, where there was little warning infrastructure, and the military government initially blocked international aid. Most deaths came from the storm surge.

The 2004 Indian Ocean tsunami

On 26 December 2004 a magnitude 9.1 earthquake off Sumatra moved the sea floor by several metres along a fault more than 1,000 kilometres long. The waves it created reached the coasts of 14 countries, some of them hours after the quake.

Country	Approximate deaths and missing
Indonesia	about 167,000
Sri Lanka	about 35,000
India	about 16,000
Thailand	about 8,000
Somalia, Maldives, Malaysia, Myanmar and others	about 1,000 combined
Total	about 227,000 to 230,000

There was no tsunami warning system in the Indian Ocean at the time. People on beaches in Thailand and Sri Lanka had more than an hour between the earthquake and the waves, time that would have been enough to reach higher ground if anyone had told them. A warning system now covers the whole ocean.

Volcanoes

Volcanoes are rarer killers than floods or earthquakes, but their effects can spread across the planet.

Eruption	Year	Estimated deaths
Tambora, Indonesia	1815	about 71,000 to over 90,000 directly, plus many more from global crop failure
Krakatoa, Indonesia	1883	about 36,000, mostly from tsunamis
Mount Pelee, Martinique	1902	about 28,000 to 30,000
Nevado del Ruiz, Colombia	1985	about 23,000
Laki, Iceland	1783	about 9,000 in Iceland, with possibly many thousands more across Europe from toxic haze

Tambora threw so much ash and sulphur into the upper atmosphere that 1816 became the "year without a summer" across Europe and North America. Harvests failed, food prices soared and famine and typhus followed. Its true death toll is impossible to know.

Famines and droughts

If you count famines triggered by drought, the numbers grow far larger, but so does the role of human choices: grain exports, war, price controls and the refusal to send relief.

Famine	Years	Estimated deaths	Main triggers
Great Chinese Famine	1959 to 1961	15 to 45 million	Government policy, with some drought
Northern Chinese famine	1876 to 1879	9 to 13 million	Drought
Great Famine of India	1876 to 1878	5.5 to 10 million	Drought, colonial policy
Bengal famine	1943	2 to 3 million	Cyclone, war, policy
Irish Famine	1845 to 1852	about 1 million	Potato blight, policy

Because so much of the toll in these events comes from decisions rather than the weather, most disaster databases leave them out of "natural disaster" rankings. They belong to the same family as the hunger that still kills millions a year, which we cover in how many people die from hunger every day.

Is the world getting safer?

Yes, dramatically, at least in terms of deaths. According to the EM-DAT international disaster database and analysis by Our World in Data, natural disasters killed on average several hundred thousand people a year in the early twentieth century, and in some decades over a million a year. In recent decades the average has fallen to roughly 40,000 to 60,000 a year, even though the world's population has quadrupled.

Period	Typical deaths a year from natural disasters
1920s to 1930s	often several hundred thousand to over a million
1970s	about 100,000 to 200,000
2000s	about 70,000 to 80,000 (inflated by the 2004 tsunami and 2008 Nargis)
2010s	about 40,000 to 60,000

The fall comes from warning systems, stronger buildings, better flood defences, faster aid and, above all, fewer famines. Bad years still happen. The 2010 Haiti earthquake and the 2023 Turkey and Syria earthquakes pushed annual totals well above average. We look at the modern yearly picture in detail in how many people die in natural disasters every year.

Heat is the one disaster type that has grown more deadly in recent years, and it is badly under-counted, because heat deaths often appear on certificates as heart attacks or strokes. Europe's 2003 heatwave killed around 70,000 people. We cover that in how many people die in heatwaves.

Putting disasters in perspective

Even the worst disasters are small next to the slow, everyday causes of death. Here is how a typical year of natural disasters compares with the leading causes we track.

Cause	Deaths a year (approx.)
Cardiovascular disease	18,600,000
Cancer	10,000,000
Air pollution (as a risk factor)	about 7,000,000
Road injuries	1,190,000
All natural disasters in a typical recent year	about 40,000 to 60,000

In an average year, road crashes kill around twenty times more people than all the floods, storms, earthquakes and volcanoes on earth combined. Disasters frighten us because they are sudden, visible and shared. The bigger killers are quiet. You can compare any two causes side by side with our compare causes tool.

Disasters also sit in a wider history of mass death. Pandemics have killed far more people over the centuries, as our ranking of the deadliest pandemics in history shows, and so have wars, ranked in the deadliest wars in history.

While you were reading this

You have spent about 12 minutes with this article. In that time, roughly 1,400 people have died around the world, almost none of them in a natural disaster. They died in hospitals, at home, on roads and in their beds, from the ordinary causes that never make the news.

You can watch today's total grow on our deaths today page, or follow every death on earth as it happens on the live death counter.

---

Data sources: EM-DAT International Disaster Database (Centre for Research on the Epidemiology of Disasters, UCLouvain), Our World in Data, US Geological Survey, NOAA National Centers for Environmental Information, World Meteorological Organization, Encyclopaedia Britannica, and published historical estimates. Death tolls for historical disasters are highly uncertain and often disputed, and ranges reflect that disagreement. Rankings change depending on which estimate is used. This article is for informational purposes only.