New nuclear reactor explosion - meltdown

No explosion was heard.Two reactors at Japan's nuclear facilities, scientists are working to prevent the fuel rods from melting and destroying after two explosions at the neighboring reactor.A spokesman for Japan's nuclear security agency said on state television on Tuesday that the blast was heard at six.10am (8.10am AEDT).No other details have yet been released.More than two hours after the reactor fuel rods were "completely exposed", concerns about reactor meltdown intensified, officials said, after Friday's devastating earthquake and tsunami, the country is responding to the growing humanitarian and economic crisis.
Air pressure Inside No.
Two reactors at the Fukushima Daiichi nuclear power plant, 250 kilometers north of Tokyo, suddenly rose when the air flowmeter unexpectedly closed, its operator TEPCO said.The cooling water was prevented from flowing into the reactor, causing the rods to be fully exposed around eleven o'clock P.M. on Monday (one o'clock A.M. on Tuesday.According to Kyodo news agency, the Japanese government's Nuclear Security Agency said the rods had been completely exposed for about 140 minutes.
When the rods are exposed for a period of time, the rising temperatures begin to melt them, and they may lose the vertical structure in the core.Meltdown can cause the container to break and can cause radiation to leak into the environment.However, according to Kyodo news agency, Yukio Edano, chief cabinet secretary, said the problem "will not develop into a situation similar to the Chernobyl accident ".
Yesterday, a hydrogen bomb shook the first place.Reactor No. 3 exploded two days later and destroyed the house around reactor No. 1.1 reactor.In both incidents, Japanese authorities said they did not have any evidence of harmful radiation exposure and that the explosion did not penetrate the steel and concrete containment of the reactor.
Yukiya Amano, head of the International Atomic Energy Agency (IAEA), said the reactor vessel was "already in possession" with limited radioactive release.Dennis Flory, deputy director general of the International Atomic Energy Agency, said radiation levels at the Fukushima plant peaked on Saturday but then declined."We are in a range and it is not a sign of high risk," he said .
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According to the International Atomic Energy Agency, Japan has distributed 230,000 units of stable iodine to the Fukushima evacuation center to prevent thyroid cancer in the event of radiation exposure."Iodine has not been given to residents;Distribution is a preventive measure if it is determined necessary, "it said.Yukio Edano said yesterday that radiation levels around the Fukushima Daiichi nuclear power plant are tolerable for humans.
Japan has asked the IAEA to send experts to help it deal with the reactor issue, the latest disclosure.Since the earthquake was revised to Level 9, the country has been working to deal with nuclear emergencies.S. Geological Survey and Japan Meteorological Agency, tsunami hit its Northeast coast.
Increased from Level 8.
9 to 9.
0 indicates that the earthquake is 1.
5 times strongerThis has also made the earthquake the fourth largest in the world since 1900, second only to level 9.On 2004, an earthquake struck the west coast of Sumatra, triggering a devastating Boxing Day tsunami.All nuclear power plants in the country are automatically shut down according to design.
But the loss of electricity and the damage of the tsunamiThe generator damaged the reactor cooling system.Over time, the hot fuel mixture of radioactive substances including uranium, plutonium, strongos and caesium will "rot" or cool down.The workers deflated the reactor with seawater to cool the reactor rods.
However, the process of natural decay also means that the heat of the fuel will decrease over time."Once the reactor goes off the line like this, the main period you have to worry about is the first 72 hours," said a spokesman for the American Institute of Nuclear Energy, Steve Sussex.After that, [the temperature] began to drop.
That doesn't mean you were out of the woods at that point in time, but that means you have a situation that is easier to manage.Millions of people face a fourth night with no water, food or heating nearbyFreezing temperature.As of last night, about 156 Australians were still missing from the earthquake.
The coastal city of Sendai was affected.
A consular team has left Tokyo for the affected area.On the coast of the tsunami-ravaged Miyagi prefecture, a Japanese police official said 1000 bodies were found along the coast.Japan's Kyodo news agency reported that 2000 bodies were destroyed along the two coastlines of Miyagi.
In a town near a county, mass remains could not be handled at crematorium."We have started cremation, but we can only handle 18 bodies a day.We were overwhelmed and asked other cities to help us with our physical problems.
There is only one crematorium in our town, "Katsuhiko Abe, an official at sorma, told The Associated Press.Last week's double tragedy brought unimaginable poverty to the people of this industrialized country.The richest in Asia-This difficulty has never been experienced since World War II.
In many areas, there is no tap water, no electricity, no fourto five-Wait an hour for gasoline.When dealing with the problem of losing loved ones and families, people use instant noodles or rice balls to curb hunger.People live on very little food and water.
Things won't happen at all, "said Hajime Sato, a government official in Iwate, which is one of the hardest hit areas.Sato said the supply of food and other supplies was only 10 per cent of the required supplies.The body bags and coffins are too short, he said, and the government may seek help from foreign funeral homes.
"We asked the funeral homes across the country to send us many body bags and coffins."But we don't have enough," he said .""We just didn't expect such a thing to happen.It's just overwhelming.The cost of recovery and reconstruction in Japan is expected to reach at least $178 billion (US dollars), accounting for the country's annual economic output, analysts at Credit Suisse and Barclays said.
The estimated loss is also higher than that of the 1995 Kobe earthquake.Japan's public debt is already twice the size of its $5 trillion economy.-