This Oct. 2008 file photo released by Kyodo News Agency on March 15, 2011 shows the No. 2 nuclear reactor (L) of Japan's Fukushima No. 1 nuclear power station. Japan's Nuclear and Industrial Safety Agency said Tuesday that an explosion was heard at the No. 2 reactor of Fukushima No.1 nuclear power plant at 6:10 a.m. Tuesday (2110 GMT).

Japan's Nuclear and Industrial Safety Agency said Tuesday that an explosion was heard at the No. 2 reactor of Fukushima No.1 nuclear power plant at 6:10 a.m. Tuesday (2110 GMT).

The suppression pool of the reactor might have been damaged at No. 2 reactor, said the safety agency.

日本經(jīng)濟(jì)產(chǎn)業(yè)省原子能安全和保安院15日說，東京電力公司福島第一核電站二號(hào)機(jī)組當(dāng)天上午發(fā)出爆炸音，可能是核反應(yīng)堆中的控制壓力池出現(xiàn)損壞。

A rise in radiation was monitored near the nuclear plant shortly after the blast, said the agency. The radiation fell to 882 micro sievert after briefly rising as high as 965.5 micro sievert, topping the legal limit of 500.

But the agency said that the radiation will not immediately affect people's health at the levels of above figures.

原子能安全和保安院當(dāng)天召開記者會(huì)宣布，福島第一核電站二號(hào)機(jī)組的核燃料棒露出水面約2.7米，露出長度差不多是核燃料棒的一半。發(fā)出爆炸音后不久，福島第一核電站四周監(jiān)測到965.5毫希的輻射，之后下降到882毫希。原子能安全和保安院說，上述輻射的數(shù)值不會(huì)立即對(duì)人體產(chǎn)生影響。

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