No additional damage at Fukushima plant from new quake: TEPCO
April 7, 2011 11:28 AM EDT
Japan’s NHK public television has reported that today’s earthquake off the coast of northeast Japan has not caused any additional damage to the Fukushima nuclear power plant, quoting the Tokyo Electric Power Co. (TEPCO).
Water Leaks at Another Japanese Nuclear Plant
There was a brief scare at the Onagawa nuclear plant after a strong aftershock rocked northeast Japan.
Water leaked out of spent reactor fuel pools.
Japan's Nuclear Safety Agency clarified what happened.
[Hidehiko Nishiyama, Nuclear & Industrial Safety Agency]:
"According to the most recent information coming from Onagawa, we've had reports that there were anomalies near reactors 2 and 3 following the tremors. As far as reactor 2 is concerned we've determined that it's due to the sloshing about of water during the earthquake in the recycled waste pool and that splashed on to the floor."
No change in radiation levels had been detected.
Cooling operations resumed at the plant after they stopped due to the tremor.
The aftershock left large parts of Japan's northeast without power.
Japan's Chief Cabinet Secretary, Yukio Edano, said electricity supply was an issue.
[Yukio Edano, Chief Cabinet Secretary]:
"We would like to avoid planned blackouts. Planned blackouts have an enormous effect on the public life and the economy, and therefore we would like to balance the supply and demand of electricity without resorting to planned blackouts. We plan to come up with a counter measure for electricity supply within this month."
High levels of radiation at 2 reactors
The Yomiuri Shimbun
High levels of radiation were measured Sunday by remote-controlled robots inside the buildings that house reactors Nos. 1 and 3 of the Fukushima No. 1 nuclear plant--levels that would need to be lowered for workers to work inside the buildings, the Nuclear and Industrial Safety Agency said Monday.
The agency said radiation levels were measured from 10 to 49 millisieverts per hour for the No. 1 reactor and from 28 to 57 millisieverts per hour for the No. 3 reactor.
"As things stand now, it would be difficult to send workers inside them to work. We need to lower the radiation levels or block them somehow," said Hidehiko Nishiyama, a spokeman for the agency.
It marked the first time that radiation levels have been measured inside the buildings housing reactors Nos. 1 and 3 since hydrogen explosions occurred in these two units in the wake of the massive quake and tsunami on March 11.
Tokyo Electric Power Co., which operates the crisis-hit plant, used two U.S.-made robots to take the measurements.
Measurements at the No. 3 reactor, taken between 11:30 a.m. and 2 p.m. Sunday, found that the temperature inside was from 19 C to 22 C, the humidity from 32 percent to 35 percent, and the oxygen content of the air inside 21 percent.
At the No. 1 reactor, where measurements were taken between 4 p.m. and 5:30 p.m., the temperature ranged from 28 C to 29 C, the humidity from 49 percent to 56 percent, while the oxygen content was 21 percent.
Inside the building housing reactor No. 3, the interior of which was also photographed by a robot Sunday, there was a large amount of debris found, making it impossible for the robot to advance further.
Japanese government under fire over disaster plan
(AP) – 4/18
TOKYO (AP) — A blueprint for ending radiation leaks and stabilizing reactors at Japan's crippled nuclear plant drew a lackluster response Monday, as polls showed diminishing public support for the government's handling of the country's recent disasters.
The plan issued by Tokyo Electric Power Co. over the weekend, in response to a government order, is meant to be a first step toward letting some of the tens of thousands of evacuees from near the company's Fukushima Dai-ichi nuclear power plant return to their homes. (Much More)
Japan to close 'most dangerous nuclear plant in the world'
The operator of a nuclear plant that has been described as the most dangerous in the world is expected to give in to pressure from the Japanese government to shut it down
By Julian Ryall in Tokyo 7:00AM BST 09 May 2011
Chubu Electric Power Co. has scheduled a special meeting of its board today, during which the company will agree to suspend operations at the Hamaoka nuclear power station in Shizuoka Prefecture.
Naoto Kan, the prime minister, said on Friday that all operations at the facility must be suspended due to fears - heightened by the March 11 earthquake and tsunami that wrecked the Fukushima Dai-Ichi nuclear plant in northern Japan - about its safety.
"This is a decision made for the safety of the Japanese people when I consider the special conditions of the Hanaoka plant," Mr Kan told reporters.
Seismologists have described Hamaoka as the most dangerous atomic energy plant in the world as its five reactors date back to the 1970s and sit directly on top of two major subterranean fault lines. The government has predicted there is an 87 per cent chance of a powerful earthquake in the region within the next 30 years.
The plant is only designed to withstand an 8.5 magnitude earthquake and a tsunami of up to 8 metres.
'Tiny radiation leak' at nuclear plant in western Japan
By Chikako Mogi
TOKYO | Mon May 9, 2011 2:53am EDT
TOKYO (Reuters) - Japan on Monday announced a tiny radiation leak at a nuclear reactor on its west coast, while another power company is expected to close a nuclear plant in central Japan due to its vulnerability to a major quake.
Electricity wholesaler Japan Atomic Power said it had stopped the leak after a minute amount of radiation was found in gas that escaped from the Tsuruga nuclear plant on Sunday. It said there had been no impact on the environment.
Japan Atomic said it was investigating the cause of the leak, which is bound to increase public unease over the troubled nuclear industry in the wake of the massive earthquake and tsunami that crippled the Fukushima nuclear facility in March. snipped
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