Fukushima Daiichi

The Fukushima Daiichi nuclear disaster was due to a 2011 nuclear accident at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima Prefecture initiated by the 2011 Tōhoku earthquake and tsunami. It was the most severe nuclear accident since the Chernobyl disaster in 1986, and the only other accident to receive the Level 7 event classification of the International Nuclear Event Scale.