Meltdown intel emerges ahead of Japan anniversary

Japan was Saturday preparing to mark the first anniversary of its tsunami, as government papers revealed ministers were warned of the possibility of meltdowns at Fukushima just after the waves struck. A summary of a government meeting held about four hours after a giant earthquake sent a wall of water crashing into the atomic power station showed that one unidentified participant had cautioned of the risk of a meltdown.
"If the temperature of the reactor cores rises after eight hours, there is a possibility that a meltdown will occur," the person said, according to the summary released on Friday. Fukushima Daiichi, 220 kilometres (140 miles) north-east of Tokyo, spewed radiation after its cooling systems were knocked out by the tsunami when it crushed coastal communities and left more than 19,000 people dead or missing.
The government and plant operator Tokyo Electric Power (TEPCO) maintained for months there had been no meltdown at Fukushima, despite repeated warnings from independent experts. They finally admitted in May that three of six reactors had suffered meltdowns.
Tens of thousands of people were made homeless by the nuclear crisis and some tracts of land inside a 20-kilometre exclusion zone are expected to be uninhabitable for decades because of radiation levels. Friday's revelations came as Japan prepared to mark the first anniversary of the tragedy.
Much of public life will pause on Sunday at 2.46 pm (0546 GMT) to mark the exact moment a 9.0 magnitude earthquake struck off the country's east coast on March 11 last year. Public transport was expected to stop, and Tokyo's busy shopping districts will fall silent for a minute as the country honours the memory of those who died when the towering tsunami smashed ashore.
A formal ceremony in the capital will be the centrepiece of Japan's official remembrance, with speeches from Prime Minister Yoshihiko Noda and Emperor Akihito. The 78-year-old emperor, who underwent heart surgery three weeks ago, will attend 20 minutes of the hour-long ceremony with Empress Michiko, the royal household said Saturday. Anti-nuclear protests were scheduled in Tokyo and Fukushima, as well as other parts of the country, while candle-lighting ceremonies were expected to commemorate the victims of the natural disaster.