about 90 percent of the amount in Michigan: $26,607 Â±$97 $34,500 Â±$17,135 Median household income about three-quarters of the amount in Berrien County: $44,993 Â±$1,009
These events played out three timesâat the US state of Pennsylvaniaâs Three Mile Island Nuclear Power Plant in 1979, at then-Soviet Ukraineâs Chernobyl Nuclear Power Plant in 1986, and at Japanâs Fukushima Daiichi in 2011.
Disaster. Reactor overheats at Three Mile Island. The most serious nuclear accident in United States history takes place at the Three Mile Island plant near Harrisburg, Pennsylvania, on this day in 1979, when one of the reactors overheats.