The Three Mile Island Nuclear Explosion

The three mile island accident was a partial nuclear meltdown which occurred in one of the two United States nuclear reactors on March 28, 1979 . Located on the three mile island in Dauphin County, Pennsylvania; it was the worst accident in U.S. commercial nuclear power plant history with the partial meltdown resulting in the release of small amounts of radioactive gases and radioactive iodine into the environment.