Nuclear and Industrial Safety Agency Ministry of Economy, Trade and Industry on August 12, the first nuclear power plant damaged by earthquake Toukyoudenryoku Hukuzima East (town Ookuma Fukushima Futaba town) in Unit 1, soluble in hot fuel rods "meltdown" has occurred likely announced. According to NISA, No. 1 around the detection of radioactive cesium on NIRS team. Cesium is contained in nuclear fuel rods, because of its high melting point, it is estimated that the likely cause meltdown. According to the Safety Agency, said nuclear power plant Unit 1 reactor water level decreased from 12 am. Temporarily exposed surface of the cooling water from nuclear fuel rods were damaged nuclear fuel is a concern.

冷卻液水位下降，部分燃料棒在水位之上