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Globally, there have been at least 99 (civilian and military) recorded nuclear power plant accidents from 1952 to 2009 (defined as incidents that either resulted in the loss of human life or more than US$50,000 of property damage, the amount the US federal government uses to define nuclear energy accidents that must be reported), totaling US$20.5 billion in property damages.
More than 30 people were over-exposed to radiation when the starboard reactor cooling system failed and the reactor temp rose uncontrollably. Emergency repairs ordered by the captain successfully cooled the reactor and avoided meltdown, but exposed the workers to high levels of radiation. [17] 8 Radiation accident in Morocco: 1984 March
A nuclear meltdown (core meltdown, core melt accident, meltdown or partial core melt [2]) is a severe nuclear reactor accident that results in core damage from overheating. The term nuclear meltdown is not officially defined by the International Atomic Energy Agency [ 3 ] or by the United States Nuclear Regulatory Commission . [ 4 ]
1962 Thor missile launch failures during nuclear weapons testing at Johnston Atoll under Operation Fishbowl; 1961 SL-1 nuclear meltdown; 1961 K-19 nuclear accident; 1959 SRE partial nuclear meltdown at Santa Susana Field Laboratory; 1958 Mailuu-Suu tailings dam failure; 1957 Kyshtym disaster; 1957 Windscale fire; 1957 Operation Plumbbob
Alternately, an external fire may endanger the core, leading to a meltdown. Large-scale nuclear meltdowns at civilian nuclear power plants include: [13] [62] the Three Mile Island accident in Pennsylvania, United States, in 1979. the Chernobyl disaster at Chernobyl Nuclear Power Plant, Ukraine, USSR, in 1986.
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Globally, there have been at least 99 (civilian and military) recorded nuclear reactor accidents from 1952 to 2009 (defined as incidents that either resulted in the loss of human life or more than US$50,000 of property damage, the amount the US federal government uses to define major energy accidents that must be reported), totaling US$20.5 billion in property damages.