Nyorai kuenderera mberi kweiyi ndima - Kurume 11, 2011, kudengenyeka kwenyika kweTōhoku uye tsunami zvakakonzera tsaona dzakasiyana-siyana dzenyukireya, yakaipisisa yaive njodzi yenyukireya yeFukushima Daiichi. Panenge pamaminiti makumi masere pashure pokurova kwetsunami
, tembiricha mukati meChikamu 1 cheFukushima Daiichi Nuclear Power Plant yakasvika pamusoro pe2,300 ̊C, zvichikonzera kuti zvivakwa zvekuunganidza mafuta, tsvimbo dzekutonga uye mafuta enyukireya anyungudike uye agadzire corium. (Mugariro womuviri wemafuta akakuvadzwa hauna kunyatsozivikanwa asi unofungidzirwa kuva wakanyunguduka.) Rector core isolation cooling system (RCIC) yakabudirira kuvhurwa yeUnit 3; zvisinei, Unit 3 RCIC yakazokundikana, uye nenguva dza09:00 musi wa13 Kurume, mafuta enyukireya akanga anyunguduka kuva corium. Unit 2 yakachengeta mabasa eRCIC kwenguva yakati rebei uye corium haifungidzirwi kuti yakanga yatanga kuunganidza paburiro re reactor kutozosvikira panenge pa 18:00 musi waMarch 14. TEPCO inofunga kuti gungano remafuta rakawa kubva mumudziyo unomanikidzwa kusvika pasi pemudziyo wokutanga wokudzivirira, uye kuti yakawana zvisaririra zvemafuta pasi pemudziyo wokutanga wokudzivirira.