[7:17 p.m. ET Monday, 8:17 a.m. Tuesday in Tokyo] More information about the new blast at the Fukushima Daiichi nuclear power plant in northeastern Japan: An "explosive impact" occurred Tuesday morning at the No. 2 reactor, a day after a hydrogen explosion rocked reactor No. 3, the plant's owner announced. [7:09 p.m. ET Monday, 8:09 a.m. Tuesday in Tokyo] A blast has been heard at the site of the No. 2 reactor of the Fukushima Daiichi nuclear power plant, according to Japanese broadcaster NHK.
[6:44 p.m. ET Monday, 7:44 a.m. Tuesday in Tokyo] The situation with Fukushima Daiichi's No. 2 nuclear reactor is not yet stable, though authorities have had some success in pumping in water in order to cool radioactive material inside, Japan's Chief Cabinet Secretary Yukio Edano said early Tuesday. He said the cooling functions at the facility's Nos. 1 and 3 nuclear reactors are serving their purpose.
Cooling problems at the No. 2 reactor on Monday allowed nuclear fuel rods to overheat and generate radioactive steam that officials will have to vent into the atmosphere. Crews thought they had the situation under control, but water levels dropped dangerously again Monday night when a buildup of steam prevented fresh seawater from entering the reactor chamber, Tokyo Electric Power Co. reported.
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