the cooling system was unable to supply water to cool the reactor fuel rods properly. The reactor core remains hot even after a shutdown. Edano said residents were told to stay at least three kilometres from the plant and to stay inside buildings amid spiking radiation levels reports in the area. He said both the state of emergency and evacuation order are meant to be a precaution. It was the first time Japan has declared a state of emergency at a nuclear power plant. ，800 people. It comes after the government declared a state of emergency at the plant. The quake triggered a power outage and when a backup generator also failed， and radiation risk warnings near Onahama。
and Onagawa plants. At a Glance State response after quake-driven cooling failure at Fukushima No. 1， power outage， affects at least 2， about 270 kilometres northeast of Tokyo. Japan's nuclear safety agency said the evacuation， and cooling system loss，。
prompting an evacuation。
ordered by the local government of Fukushima， a state of emergency， Miyagi， Fukushima nuclear emergency follows a magnitude 8.9 earthquake， backup generator failure， evacuations to prevent radiation release. Magnitude 8.9 quake triggered power and backup generator failure Cooling system loss kept reactor core hot after shutdown Government declared first nuclear state of emergency Evacuation ordered within 3 km; shelter-in-place advised Japan ordered thousands of residents near a northeastern nuclear power plant to evacuate following a massive earthquake that caused a problem in the plant's cooling system. Chief Cabinet Secretary Yukio Edano said the Fukushima No. 1 power plant was not leaking radiation at the time. The plant is in Onahama city。