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Within 16 hours, the reactor core melted, dropped to the bottom of the pressure vessel and created a hole there. By then, an operation to pump water into the reactor was under way. This prevented the worst-case scenario, in which the overheating fuel would melt its way through the vessels and discharge large volumes of radiation outside
(Reuters) - The operator of the crippled Fukushima Daiichi nuclear plant said it is studying whether the facility's reactors were damaged in the March 11 earthquake even before the massive tsunami that followed cut off power and sent the reactors into crisis.
A finding that the reactors were damaged by the quake itself could complicate the growing debate on the future of nuclear power in Japan at a time when Tokyo is under pressure from local officials to tighten safety standards.
"We can certainly say that if the venting took place a little earlier, we could have prevented the situation from worsening," Nuclear Safety Commission Chairman Haruki Madarame told parliament
Originally posted by xxPUSH0Noo
Originally posted by xxPUSH0Noo
Originally posted by DancedWithWolves
New cryptome photos
What is censored in those pictures??? Starting in the first pic and continuing down there are a FEW objects in pixels !!edit on 12-5-2011 by xxPUSH0Noo because: spellingedit on 12-5-2011 by xxPUSH0Noo because: added
& Can anyone tell me what is in these pictures that is censored? I am sure it is nothing but I asked earlier and I don't know if that is why no one answered.. has anyone else noticed this?
AFP - Ratings agency Moody's on Monday again downgraded TEPCO, the operator of Japan's stricken Fukushima nuclear plant, and warned the rating would remain on review for further possible action.
The agency said it downgraded Tokyo Electric Power's senior secured debt by one notch to Baa2. It also downgraded TEPCO's long-term issuer rating two notches to Baa3 from Baa1.
It was its third downgrade of Asia's biggest utility since the March 11 earthquake.
Tokyo Electric Power Co. (TEPCO) admitted for the first time on May 15 that most of the fuel in one of its nuclear reactors at the Fukushima No. 1 Nuclear Power Plant had melted only about 16 hours after the March 11 earthquake struck a wide swath of northeastern Japan and triggered a devastating tsunami.
According to TEPCO, the operator of the crippled nuclear power plant, the emergency condenser designed to cool the steam inside the pressure vessel of the No. 1 reactor was working properly shortly after the magnitude-9.0 earthquake, but it lost its functions around 3:30 p.m. on March 11 when tsunami waves hit the reactor.
Based on provisional analysis of data on the reactor, the utility concluded that the water level in the pressure vessel began to drop rapidly immediately after the tsunami, and the top of the fuel began to be exposed above the water around 6 p.m. Around 7:30 p.m., the fuel was fully exposed above the water surface and overheated for more than 10 hours. At about 9 p.m., the temperature in the reactor core rose to 2,800 degrees Celsius, the melting point for fuel. At approximately 7:50 p.m., the upper part of the fuel started melting, and at around 6:50 a.m. on March 12, a meltdown occurred.
Junichiro Matsumoto, a senior TEPCO official, said, "Because there is similar damage to the fuel rods at the No. 2 and 3 reactors, the bottoms of their pressure vessels could also have been damaged." He said the utility would carry out similar analysis on the two reactors.
Originally posted by Silverlok
They should take sand , Portland cement and 3% (by weight) rice and drop that in the basement of those places in the proper ratios 'dry' , They could blow it in with a machine similar to the thing that blows insulation into the attic. Then they should start filling the pcv (drywell/big steel lightbulb ) with the same thing (dry) , once they have the basement filled they should start on the trench / seawall , they are never going to get the corium out of there, ever period.
They should waste no more time and start the entombment process or face trial as criminals. Seriously how much longer can they be allowed to pollute the ocean and air?
Originally posted by Maluhia
The steep drop in Tepco's stock price has already dealt a blow to investment funds in the United States. Nearly 20 percent of its stock is held by non-Japanese investors. This has reportedly led the Obama administration to urge the Kan government to take steps to prevent a further decline in Tepco stock.
The broad energy plan, coming as gas prices continue to rise, would also fast-track environmental assessment of petroleum exploration elsewhere.President Obama will open Alaska's national petroleum reserve to new drilling, as part of a broad plan aimed at blunting criticism that he is not doing enough to address rising energy prices.
Japan extends the exclusion zone around Fukushima
Mark Willacy reported this story on Monday, May 16, 2011 08:11:00
Japan has begun evacuating people from outside the official exclusion zone around the crippled Fukushima nuclear plant.
With radiation levels remaining high, small children and pregnant women were the first to be moved with thousands more to be shifted into shelters and temporary housing.
As the evacuation zone widened more details have emerged about the meltdown in Fukushima's reactor number one, with revelations the fuel rods probably melted in the hours after the magnitude nine earthquake in March - a fact not discovered until last week.
(Norio Kanno speaking)
"I'm sure most of you have lived in this village all your lives and have never planned on moving," Iitate's mayor Norio Kanno tells residents. "To those of you that I now have to ask to pack up and leave your homes, I am deeply sorry," he says.
Because of wind patterns Iitate and nearby communities have been swathed in high radiation and authorities aren't willing to let people stay any longer.
As these new evacuations began, more news filtered out about the meltdown of fuel rods at Fukushima's reactor number one.
After the operator of the plant, TEPCO, told the Japanese people that things were stabilising at Fukushima, it's now clear they knew far less about the situation than they were willing to admit.
This is Mark Willacy in Tokyo for AM. Full Story link www.abc.net.au...
Tepco Says Fuel in 2 Reactors May Have Melted
Tokyo Electric Power Co. said fuel in other reactors at its damaged nuclear plant may have melted, after confirming rods in the No. 1 unit had fallen from their assembly, potentially delaying plans to resolve the crisis.
“The findings at the No. 1 reactor indicate the likelihood that the water level readings in the other reactors aren’t accurate,” Junichi Matsumoto, a general manager at the utility known as Tepco, said today. “It could be that a meltdown similar to that in the No. 1 reactor has occurred.”
Moody’s Japan K.K. cut Tepco’s credit ratings and put it on review for further possible downgrade after today’s news. Tepco has been struggling to cool reactors and stop radiation leaks to end the worst nuclear crisis since Chernobyl in 1986. The discovery that fuels rods melted within 16 hours of power being knocked out means it’s unlikely Tepco can meet its timetable for containing the leaks, a nuclear engineering professor said.
“Tepco didn’t clearly indicate how much uncertainty and potential negative scenarios were factored into the road map,” said Hironobu Unesaki at Kyoto University. “I don’t think they gathered enough data before coming up with the plan.” www.bloomberg.com...
Most Japanese dissatisfied with gov't post-quake efforts
English.news.cn 2011-05-16 15:37:45
TOKYO, May 16 (Xinhua) -- The majority of Japanese people are dissatisfied with the government's post-disaster handling but are in favor of a tax hike to raise funds for restoration efforts in the wake of the March 11 disasters,the Mainichi Daily News reported Monday.
The survey, conducted on April 16 and 17, also revealed that 58 percent of respondents did not trust the government's announcements about the release of radioactive material from the plant.
Regarding their views on the government's handing of the Fukushima nuclear crisis, 23 percent said that they were completely dissatisfied with the way the government had dealt with the ongoing incident at the Fukushima No. 1 Nuclear power plant, while 45 percent said they were not very satisfied, the poll showed.
“Investors are avoiding putting money on risk assets, strengthening the yen and weighing on the stock market,” said Naoki Fujiwara, who helps oversee $6 billion in Tokyo at Shinkin Asset Management Co. “Uncertainty about compensation from the nuclear disaster and concern about the Japanese government’s credibility may be weighing down the market.”
Japan Stocks Slide for Third Day on Goldman Rating Cut
M 4.8, near the east coast of Honshu, Japan
Monday, May 16, 2011 15:53:34 UTC
Tuesday, May 17, 2011 12:53:34 AM at epicenter
Depth: 43.40 km (26.97 mi)
Posted on 16 May 2011 | 3:53 pm