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The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station on the Susquehanna River in Londonderry Township, near Harrisburg, the capital city of Pennsylvania, United States. The reactor accident began at 4:00 a.m. on March 28, 1979, and released radioactive ...
Three Mile Island in 2019, prior to shutdown. / 40.15389°N 76.72472°W / 40.15389; -76.72472. Three Mile Island Nuclear Generating Station (commonly abbreviated as TMI) is a closed nuclear power plant on Three Mile Island [a] in Pennsylvania on the Susquehanna River just south of Harrisburg. It has two separate units, TMI-1 (owned by ...
The most serious of these was the Three Mile Island accident in 1979. Davis-Besse Nuclear Power Plant has been the source of two of the top five most dangerous nuclear incidents in the United States since 1979. Relatively few accidents have involved fatalities.
See photos of Three Mile Island in 1979: Exelon Corp, the U.S. power company that owns the Middletown, Pennsylvania, power plant said it will close by Sept. 30, 2019. Three Mile Island employs ...
The plant's name has been synonymous with public fears over the risks associated with nuclear power since the plant suffered a partial meltdown in 1979. Three Mile Island, site of 1979 nuclear ...
In 1978, nuclear power plants generated electricity at only 64% of their rated output capacity. Performance suffered even further during and after Three Mile Island, as a series of new safety regulations from 1979 through the mid-1980s forced operators to repeatedly shut down reactors for required retrofits.
The actual threat of this was coincidentally tested just 12 days after the release of the film when a meltdown at Pennsylvania's Three Mile Island Plant 2 created a molten core that moved 15 millimetres (0.59 inches) toward "China" before the core froze at the bottom of the reactor pressure vessel.
Large-scale nuclear meltdowns at civilian nuclear power plants include: the Three Mile Island accident in Pennsylvania, United States, in 1979. the Chernobyl disaster at Chernobyl Nuclear Power Plant, Ukraine, USSR, in 1986. the Fukushima Daiichi nuclear disaster following the earthquake and tsunami in Japan, March 2011.