This is a list of the deadliest tornadoes in world history. This list includes confirmed individual tornadoes that caused 100 or more direct fatalities.
The deadliest tornadoes by far have occurred in a small area of Bangladesh and East India. In this 8,000-square-mile (21,000 km2) area, 24 of the 42 tornadoes which are known to have killed 100 or more people occurred.[1] This is probably due to the high population density and poor economic status of the area, as well as a lack of early warning system.[1]
Most of the rest occurred in the United States in 1953 or earlier, before tornado prediction efforts began. The only tornado on this list to occur during the 21st century is the Joplin tornado, which occurred on May 22, 2011.
There are many sources of uncertainty in the statistics mentioned on this page. Before the 20th century, and even until recently in third-world countries, records-keeping was spotty at best. Before the American Civil War, slave deaths were often not included in tornado death tolls. Fatalities of Africans in the Southern US were routinely not counted through the 1940s and in some cases into the 1950s. Most tornadoes from many decades ago had no official government report on damage or casualties, so statistics must be compiled from local newspapers, which are not always a reliable, consistent, or comprehensive source. Many death tolls were published with people still missing, or with people critically injured and likely to die later. News media, Red Cross, and other counts don't necessarily distinguish whether a death was directly caused by a tornado and can include deaths during cleanup efforts. Routine counting of fatalities began in the US in the 1950s. In Bangladesh and India, exact populations of towns were often not known, so most death figures are approximate. Individual tornado descriptions go into more detail on these uncertainties. Officials in some areas, for example in Russia (and the USSR) and parts of Europe, until recent years denied that tornadoes occur in those areas thus fatalities may not be counted as tornadic.
There is also meteorological uncertainty with the nature of many tornadoes on this list. Before the 1970s, and even now outside of North America, most tornado paths were not thoroughly surveyed to ensure that the storm was indeed a single tornado and not a series of tornadoes from the same storm (a tornado family). Often a single supercell can produce a new tornado soon after or even before the demise of an old tornado, giving the appearance to many observers that a single tornado has caused all the damage. On this list, if it is likely that the tornado was in fact two or more tornadoes, it will appear in italics.
The deadliest tornado in recorded world history, this storm destroyed everything but a few trees from Daultipur to Saturia.[2][3] In 2022, this tornado's death toll was challenged in a paper authored by Dr. Fahim Sufi, with the Australian Government, Dr. Edris Alam, with the University of Chittagong, Dr. Musleh Alsulami, with the Umm al-Qura University, where it was stated the deadliest tornado in Bangladesh and subsequently world history was the April 14, 1969, Dhaka, Bangladesh tornado, which killed 922 people.[4]
Unlike most historical long-track tornadoes, this was probably a single tornado, not a tornado family, although it partly or completely destroyed more than ten towns. The path length of 219 miles (352 km) is the longest ever recorded. The death toll of 689 is the official National Weather Service total, however, the Red Cross lists a total of 695, and the death toll was probably even higher due to injured people who died after the fact.[5]
Manikganj, Singair and Nawabganj
Bangladesh
17 April 1973
681
Unknown
The village of Balurchar was completely destroyed, with eight other villages almost totally leveled.[2]
660 were killed after the tornado struck the northeastern suburbs of Dhaka, causing colossal damage. The bodies of the tornado's victims were mutilated.[6]
Powerful tornado ripped through the Jamalpur and Tangail districts, causing over 600 fatalities. Over 16,000 homes were destroyed. Death toll may be as high as 700.[8][9][10]
Wiped seven villages off the map. The death toll may have been as high as 1,400, but official records conflict. There were no survivors from the village of Bhabanipur, where around 400 people lived.[2]
Two waterspouts moved onshore at the western end of the island, becoming large, violent tornadoes. This was as a pair of tornadoes, but details are very scarce; it may have been a single multiple-vortex tornado.[7][11]
Madaripur and Shibchar
Bangladesh
1 April 1977
500
Unknown
All buildings and trees in Madaripur and Shibchar were destroyed.[2]
Killed hundreds in boats on the Mississippi River. May have killed and injured hundreds more slaves on plantations outside of the city; however, slave deaths were traditionally not included in official totals.[12]
Touched down near Cooch Behar, India, and passed across the extreme northern tip of Bangladesh. Debris was found 30 miles (48 km) away from the damaged area.[2] One source only mentions 139 deaths.[13]
Destroyed a large section of downtown in both cities. This death toll probably does not include people living in shanty boats on the Mississippi River.[14]
Destroyed several hundred homes in the city, many of good construction. Over 100 people were still in hospitals when this official death toll was published, so the actual death toll may be higher.[15]
In the same outbreak as the Tupelo tornado, destroyed a large section of downtown at the start of the work day. Forty people were still missing when this death toll was published.[16]
14 miles southwest of Mymensingh
Bangladesh
1 April 1972
200†
Unknown
A fifteen square mile (38 km2) area was "wiped clean".[2]
This death toll may be inflated, as this storm was certainly a family of two or more tornadoes. However, at least 107 were killed in Woodward alone by a single tornado, where 100 city blocks were flattened.[17]
EF5 tornado struck the southern part of the city along a west-to-east path .75 miles (1.21 km) wide by 22.1 miles (35.6 km) long.[19][20] The tornado resulted in 158 direct and three indirect deaths.[21][22][19]
Struck the day the circus was in town. Exacted a direct hit on the town, destroying the entire business district and half the residences in the town. Of the 117 fatalities, all but six occurred within the vicinity of New Richmond.[24]
In the past, this was plotted as a record-length 293-mile (472-km) long tornado path, killing 110, but scientists now know that it was a family of at least four tornadoes. A single tornado killed at least 93 people in and near these two cities, and 101 deaths is the best modern estimate for a single tornado.[29]
Cut a remarkably continuous path at least 60 miles (97 km) through mountainous terrain. Most deaths occurred in a 10-mile (16-km) stretch near Shinnston. May have killed one more in Pine Grove, Wetzel County.[30] This is the only violent (F4/EF4 or F5/EF5) tornado in West Virginia history.
^Paul, Bimal Kanti (August 1, 1998). "Coping with the 1996 Tornado in Tangail, Bangladesh: An Analysis of Field Data". The Professional Geographer. 50 (3): 287–301. Bibcode:1998ProfG..50..287P. doi:10.1111/0033-0124.00121.