<P> This is a list of volcanic eruptions of the 20th century measuring a Volcanic Explosivity Index (VEI) of at least 4, as well as notable smaller eruptions . Note that there may be many other eruptions that have not been identified, and estimates for the size of eruptions can be subject to considerable uncertainties . </P> <Table> <Tr> <Th> VEI </Th> <Th> Volcano (eruption) </Th> <Th> Year </Th> <Th> Casualties </Th> <Th> Notes </Th> </Tr> <Tr> <Th> 4? </Th> <Td> La Soufrière </Td> <Td> 1902 </Td> <Td> 1,680 </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Pelée </Td> <Td> 1902 </Td> <Td> 33,000 </Td> <Td> Deadliest eruption of the 20th century and the deadliest natural disaster in the history of France . </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Santa María </Td> <Td> 1902 </Td> <Td> 6,000 </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Grímsvötn </Td> <Td> 1903 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Lolobau </Td> <Td> 1904 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Ksudach </Td> <Td> 1907 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Lolobau </Td> <Td> 1911 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Novarupta </Td> <Td> 1912 </Td> <Td> </Td> <Td> Largest eruption of the 20th century . </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Colima </Td> <Td> 1913 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Sakurajima </Td> <Td> 1914 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Tungurahua </Td> <Td> 1916 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Agrihan </Td> <Td> 1917 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 4 + </Th> <Td> Katla </Td> <Td> 1918 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Kelud </Td> <Td> 1919 </Td> <Td> 5,000 </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Manam </Td> <Td> 1919 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Raikoke </Td> <Td> 1924 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 4? </Th> <Td> Iriomote - jima </Td> <Td> 1924 </Td> <Td> </Td> <Td> Underwater volcano . </Td> </Tr> <Tr> <Th> </Th> <Td> Avachinsky </Td> <Td> 1926 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Komagatake </Td> <Td> 1929 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Kliuchevskoi </Td> <Td> 1931 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Aniakchak </Td> <Td> 1931 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Volcan De Fuego </Td> <Td> 1932 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Cerro Azul (Quizapú Volcano) </Td> <Td> 1932 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Kharimkotan </Td> <Td> 1933 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Suoh </Td> <Td> 1933 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 4? </Th> <Td> Kuchinoerabujima </Td> <Td> 1933 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 4? </Th> <Td> Rabaul caldera </Td> <Td> 1937 </Td> <Td> 507 </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Parícutin </Td> <Td> 1943--1952 </Td> <Td> </Td> <Td> The youngest volcano in the world . This volcano grew out of a corn field in Mexico and it was in a Mexican film named Paricutin . Scientists believe that this volcano is extinct even though it erupted once . </Td> </Tr> <Tr> <Th> </Th> <Td> Avachinsky </Td> <Td> 1945 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Sarychev Peak </Td> <Td> 1946 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Hekla </Td> <Td> 1947 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 4 + </Th> <Td> Ambrym </Td> <Td> 1950 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Lamington </Td> <Td> 1951 </Td> <Td> 2,942 </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Kelud </Td> <Td> 1951 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Bagana </Td> <Td> 1952 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Spurr </Td> <Td> 1953 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Carran - Los Venados </Td> <Td> 1955 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Bezymianny </Td> <Td> 1955 - 1957 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Mount Agung </Td> <Td> 1963 </Td> <Td> 1,584 </Td> <Td> </Td> </Tr> <Tr> <Th> 4 + </Th> <Td> Shiveluch </Td> <Td> 1964 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Taal </Td> <Td> 1965 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Kelud </Td> <Td> 1966 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Awu </Td> <Td> 1966 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Fernandina Island </Td> <Td> 1968 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Tiatia </Td> <Td> 1973 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Volcan De Fuego </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Tolbachik </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Augustine </Td> <Td> 1976 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Mount St. Helens </Td> <Td> 1980 </Td> <Td> 55 - 60 </Td> <Td> Most deadly and economically destructive volcanic eruption in the history of the United States . The eruption reached all the way to Montana but killed a small number of people and the blast of the volcano was heard 700 miles away . </Td> </Tr> <Tr> <Th> </Th> <Td> Alaid </Td> <Td> 1981 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Pagan </Td> <Td> 1981 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> El Chichón </Td> <Td> 1982 </Td> <Td> 3,500 </Td> <Td> Ejected 7 million metric tons of sulfur dioxide into the stratosphere . </Td> </Tr> <Tr> <Th> </Th> <Td> Galunggung </Td> <Td> 1982 </Td> <Td> </Td> <Td> Notable for bringing attention to the dangers of volcanic ash on aircraft after two Boeing 747 jets suffered engine failure from its ash cloud . </Td> </Tr> <Tr> <Th> </Th> <Td> Colo </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Nevado del Ruiz </Td> <Td> 1985 </Td> <Td> 23,000 </Td> <Td> Armero tragedy </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Augustine </Td> <Td> 1986 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Chikurachki </Td> <Td> 1986 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Kliuchevskoi </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Redoubt </Td> <Td> 1989 - 1990 </Td> <Td> </Td> <Td> Second costliest volcanic eruption in United States history . Caused engine failure of all four engines on KLM Flight 867 after it flew through the ash cloud . </Td> </Tr> <Tr> <Th> </Th> <Td> Kelud </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Mount Pinatubo </Td> <Td> 1991 </Td> <Td> 847 </Td> <Td> Largest stratospheric disturbance since Krakatoa eruption in 1883, dropping global temperatures and increasing ozone depletion . </Td> </Tr> <Tr> <Th> 5 + </Th> <Td> Mount Hudson </Td> <Td> 1991 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Mount Spurr </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Lascar </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> 4? </Th> <Td> Rabaul caldera </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Soufriere Hills Volcano </Td> <Td> </Td> <Td> </Td> <Td> The major volcano eruption caused pyroclastic flows to move at 60 - 100 MPH and destroyed towns . </Td> </Tr> </Table> <Tr> <Th> VEI </Th> <Th> Volcano (eruption) </Th> <Th> Year </Th> <Th> Casualties </Th> <Th> Notes </Th> </Tr>

2nd largest volcanic eruption of the 20th century
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