18 avril 2011 1 18 /04 /avril /2011 05:00


Les dernières nouvelles de la méga-catastrophe nucléaire de Fukushima mises à jour quotidiennement (en anglais).


April 13

Japanese Declare Crisis at Level of Chernobyl
Wall Street Journal

What Does Fukushima's New “Level 7” Status Mean?
TIME (blog)

Powerful quake strikes close to Fukushima

Second major aftershock in a day hits Japan

Tokyo Elec workers at Fukushima complex to evacuate

Radiation evacuation zone to be extended beyond 20 km
Asahi Shimbun

Fire seen at Fukushima nuclear plant; flames no longer visible
April 12 (Reuters)

Trace Levels Of Radiation Found in Arkansas Milk

Radioactive Particles from Fukushima Detected in Hilo Milk (Hawaï)
Hawaii News Daily

Report from Tokyo: The Truth and Nothing But the Truth
Huffington Post (blog)

Life away from home in shelters 'unbearable'
The Japan Times

Japan To Evacuate More Towns Around Crippled Nuclear Plant
WIBW Tokyo (CNN)

April 09 2011

NYT: Reactor core probably leaked

7.1 Magnitude Japan Quake Forces Workers out of Fukushima

NEI Nuclear Notes: Hummingbirds Over Fukushima

Fukushima dumping of radioactive water into Pacific Ocean violates international laws

YouTube - TEPCO Fukushima Daiichi - Ocean Currents Are Carrying radioactive seawater to the North

April 7 12h06

Colourant used to trace leak at Japan's Fukushima

Japan May Enlarge Evacuation Zone

Japan Nuclear Meltdown: 'Fukushima Fifty' Worker Speaks Out

South Korea schools closed over fears of radioactive rain from Japan

April 6 2011 10:55 pm

Japan Nuclear Plant Operator Prepares to Inject Nitrogen

Japan’s ocean radiation hits 7.5 million times legal limit

By Kenji Hall and Julie Makinen, Los Angeles Times
High readings in fish prompt the government to establish a maximum level for safe consumption. 

Reporting from Tokyo— The operator of Japan’s stricken Fukushima nuclear plant said Tuesday that it had found radioactive iodine at 7.5 million times the legal limit in a seawater sample taken near the facility, and government officials imposed a new health limit for radioactivity in fish.
The reading of iodine-131 was recorded Saturday, Tokyo Electric Power Co. said. Another sample taken Monday found the level to be 5 million times the legal limit. The Monday samples also were found to contain radioactive cesium at 1.1 million times the legal limit.
The exact source of the radiation was not immediately clear, though Tepco has said that highly contaminated water has been leaking from a pit near the No. 2 reactor. The utility initially believed that the leak was coming from a crack, but several attempts to seal the crack failed.
On Tuesday the company said the leak instead might be coming from a faulty joint where the pit meets a duct, allowing radioactive water to seep into a layer of gravel underneath. The utility said it would inject “liquid glass” into gravel in an effort to stop further leakage.
Meanwhile, Tepco continued releasing what it described as water contaminated with low levels of radiation into the sea to make room in on-site storage tanks for more highly contaminated water. In all, the company said it planned to release 11,500 tons of the water, but by Tuesday morning it had released less than 25% of that amount.
Although the government authorized the release of the 11,500 tons and has said that any radiation would be quickly diluted and dispersed in the ocean, fish with high readings of iodine are being found.
On Monday, officials detected more than 4,000 bequerels of iodine-131 per kilogram in a type of fish called a sand lance caught less than three miles offshore of the town of Kita-Ibaraki. The young fish also contained 447 bequerels of cesium-137, which is considered more problematic than iodine-131 because it has a much longer half-life. …. to continue reading click here! (The LA Times changed the headline to: "Japan nuclear plant operator reports some success on leak").

Internal NRC Documents Reveal Doubts about Safety Measures (Union of Concerned Scientists)

US engineers warn of danger at Fukushima plant

UN expert sees no serious Fukushima health impact

Fukushima Fishermen to Tepco: Stop the Dumping

Growing fallout over Japanese radiation

IAEA's Latest Update on Fukushima Daiichi Nuclear Plant

Fukushima: A Nuclear Threat to Japan, the U.S. and the World

Japanese Towns Struggle to Adapt to New Reality

'Catastrophic water dump means Fukushima really out of control' (video)

Tiny Fish Spur Widening Worry

WSJ's Yumiko Ono reports on fears surrounding the Japanese's government's decision to dump more than 11,000 tons of radioactive water into the Pacific Ocean.











Evidence of Periodic Chain Reaction at Fukushima Unit 1 (video)

FUKUSHIMA: Full Meltdown? PR Christopher Busby (video) 

April 5

Tepco: May Pump Nitrogen Into No.1 Reactor Due To Possible Hydrogen Build-Up

The Great Beyond: Fukushima update: Data, data, everywhere 


April 4 22h30

'Catastrophic water dump means Fukushima really out of control (video)

Flashing Blue Light Seen Above Exploded Nuclear Reactor - Nuclear Chain Reaction

Japan Says Radiation Leaks Could Last Months at Fukushima Plant

12,000 tons of radioactive water from Fukushima Plant (video)

Colourant used to trace leak at Japan's Fukushima

April 3 2011 21h05


Fukushima much bigger than Chernobyl expert - Channel NewsAsia

Japan tries to seal radiation leak in Fukushima reactor


Japan: Radioactive water leaking through crack into sea

Japanese nuclear plant continues its radioactive spill into ocean (+ video)


Near Fukushima, a Report From the Exclusion Zone

BBC News - Japan: Fukushima nuclear workers' bodies found

Fukushima: the future is unknown, but the present is terrible enough

FUKUSHIMA: Reactor #2 Is Cracked And Leaking Highly Radioactive Water Into The Ocean-




April 2 2011 14h24

Radioactive water from Japan's Fukushima plant is leaking into sea

Japan's 'Fukushima heroes' battle nuclear crisis in anonymity

Emergency Information from the Disaster Provision Main office of Fukushima pref


BBC News - 

'Fukushima radiation' detected in Scotland's rain

Who's to blame for Fukushima?

Nuclear Disaster Japan | Greenpeace USA

 Mother: Fukushima workers expect to die from radiation 



Workers in radiation protection suits prepare for the decontamination of two nuclear plant workers exposed to high radiation at the Fukushima Medical University March 24, 2011. Getty Images



New York Times: How a reactor shuts down and what happens in a meltdown 

BBC: What went wrong?

All Things Nuclear: Reactor cooling explained

Main Fukushima nuclear crisis page Greenpeace updates

April 1st 10h00

Crews 'facing 100-year battle' at Fukushima - ABC News (Australian)

Radioactivity levels in the ocean 4,385 times above regulatory limit

Fukushima Explosion

Fukushima Japan nuclear power plant updates: get all the data 

 BBC News - Dounreay nuclear plant donations for Fukushima

March 30 11h00


Fukushima plant may be continuously leaking - RTÉ News

Japan under pressure to widen evacuation zone

Hamish McRae: The Fukushima effect, globally, will be colossal 

Fukushima three hit by radiation burns

Hausse record du taux d'iode radioactif à Fukushima - LeMonde.fr

Cesium Fallout from Fukushima ALREADY Rivals Chernobyl |

Fukushima Nuke Plant Now in Full Meltdown 

Fukushima radiation traces spread across Asia - ABC News

Radiation rises in seawater near Fukushima plant 

Japan nuclear crisis: 'Fukushima 50' face new setback 

Expert fears full nuclear meltdown at Fukushima |

Japan nuclear crisis: Radioactive particles detected in UK 

Fukushima a threat to Pacific people? - UPI.com 

Fukushima 50's Poor Working Conditions: Dry Biscuits, One Blanket

Fukushima Workers Face Risk of Uncontrolled Reactions - Bloomberg

Fukushima clean-up will take decades and cost billions - Channel 4 

PA admits to US radiation monitor glitches



March 30 2011 10h 23

Japan considers covering Fukushima with fabric to contain radiation

New 6.4M quake strick coast of Fukushima, no damage reported

Caesium fallout from Fukushima rivals Chernobyl 

March 29

Workers suffer hardships to stabilize Fukushima plant

Fukushima disaster causes fallout for nuclear industry worldwide

Nuclear status: Reactor-by-reactor (video)

BBC News - 'Fukushima nuclear plant' radiation found at UK sites


IAEA On Fukushima Plutonium

Workers suffer hardships to stabilize Fukushima plant

Fukushima soil contains plutonium traces, according to Japanese officials

Japan nuclear crisis: Radioactive particles detected in OXFORDSHIRE

Radiation detected in Massachusetts rainwater as Fukushima crisis

Spectre of Chernobyl takes form in Fukushima - ABC News

Stricken Fukushima plant appeals to France for help

Radiation in seawater may be spreading in Japan

March 28 22h00


Plutonium found at stricken nuclear plant

Radiation rises to scary new high at Japan's Fukushima nuclear plant and another quake hits

Radioactivity from Fukushima Plant Detected in Korea

March 27 18h25

TEPCO: Soil samples being checked for plutonium

High radiation detected 30 km from Fukushima plant

Fukushima crisis: radiation fears grow for low-paid heroes ..

Efforts continue to remove water

Latest Fukushima plant video released

More obstacles impede crews in Japan nuke crisis AP – 17h 

Fukushima Update | Tracking Japan's nuclear crisis

Anti-nuclear activists hold rally in Tokyo


New Radiation Leak Feared at Fukushima Plant

March 26 14h30

Videos from Maddow, The Realnews, Channel4, Msnbc, Russia Today and NHK

To be updated regularly - Dates correspond to american time.  




Radioactivity levels soar in Japan seawater


Agency: Radiation high in seawater near nuclear plant





Japan pumps out radioactive water from N-plant






Greenpeace to monitor Japanese radiation level









High radiation on Japanese visitors





Japan faces new setback in fight to avert disaster at Fukushima plant 

Q+A: Risks at each reactor of Japan's stricken plant

Dangerous breach feared at Japan nuke site

March 25 22h37 update

Ominous smoke plumes, contaminated water and food, neutron beams -- but everything is just fine in Japan, suggest authorities

Dailymotion - Officials Announce Possibility of Fukushima Core ..

 Fukushima No. 3 reactor core leaked: report

Fukushima Titanic? 'Nuke tech always 'Unsinkable ...

No end in sight for radioactive releases at Fukushima: IAEA

Transcript below the video


Since the japanese government announced earlier this week that elevated levels of radiation in tokyo tap water meant that infants should not consume that water, they have since rescinded that instruction. they are telling people now that the water is fine.

Two workers at the fukushima daiichi plant have now been hospitalized for radiation exposure after stepping into water that was radioactive while they were working to try to stabilize the plant.

The junior-level nuclear science we have all been doing to try to understand the news out of japan and its nuclear disaster now also has to extend to the never-before -- never-before-faced quandary of what to do with an uncontrolled nuclear reactor that is in essence packed with salt. they have been dumping in tons and tons and tons and tons of sea water into these hot reactors and these hot spent fuel pools. as the sea water boils off, it leaves behind salt. tons and tons of salt. how will that salt affect the still-continuing efforts to keep those reactors and those spent fuel rods from melting down? we are learning as we go on this. joining us now to help us understand what we can about this continuing crisis is dr. michio kaku. he's a theoretical physicist. he's also author of "physics of


Dr. Michio Kaki: mentioned the salt water quandary because of these fears that the salt from the sea water being used in desperation to cool down these reactors may eventually contribute to the risk factor at these reactors. can you help us understand in layman's terms what's really going on here?


Well, think of the little dutch boy facing all these cracks in a dike. this hole, that hole, that hole has to be taken care of. we now have another hole in the dike, and that is the creation of salt. 90,000 pounds' worth of salt in one unit because of the boiling of sea water. that salt encrusts the fuel rods like a cocoon, preventing cooling water from cooling the rod. when the rod hits 5,000 degrees, it starts to melt. hydrogen gas is released. and if there's a spark, you get a hydrogen gas explosion, which blows the whole spent fuel pond into the air. very similar to what happened at chernobyl.


>> in terms of that insulating factor of the salt, if they can switch over to fresh water for continued cooling efforts at these reactors, is it likely that that will i guess dilutex<ip r(t&h? hp &hc% that salt crust enough or dilute the impact of what they've been doing with the sea water enough to undo some of that insulating damage that's been done?


>> that's right. the hope is to use fresh water rather than sea water. but realize that they're making this up as they go along. take any nuclear engineering textbook, go to the last chapter for accident scenarios. this is not in the book. we're witnessing a science experiment with humans, us, as the guinea pig. they're literally making this up as they go along. we've never seen this before in a nuclear accident of this magnitude.


What do you make of the news that power, electrical power has been restored to the reactors? are you able to tell enough about how much damage has been done to the systems that you'd be hooking electrical power up to to know whether or not this is going to be a game changer in terms of wrapping this crisis up?


The problem is that they have electrical cables going into the units but they cannot turn on the pumps. in fact, they turned op the pumps at unit 2 and it didn't work. the problem is there's hydrogen gas and a spark by turning on the light switch could set off the hydrogen gas. so until they get the pumps going we have to rely on the firemen, and nowhere in the textbook do they say that firemen, the local firemen are the last resort to put out a nuclear accident. this is unprecedented. so we rely on the local firemen to put water on the site because the pumps are not yet turned on. it's very dicey. they're waiting to see whether or not they can turn on the pumps. and unit 2's pumps didn't work.


Inadvertently, tonight's show we've talked about the bp oil disaster. we've talked about the japan disaster. we keep talking about -- we actually talked about safety problems at diablo canyon. tonight's show has been all about making good policy and making adjustments in future planning to reflect past disasters. you are a futurist. you are a theoretical physicist. when you look at this situation in japan, clearly there has been a lack of imagination about how much can go wrong. how do you think we ought to start to plan a safer future based on what's happened at fukushima?


The key mistake they made was not to plan for the once in 100-year event. engineers say not in my lifetime, not in my children's lifetime. well, we have the once in 100-year event. look at katrina. that was not supposed to happen for 100 years. at fukushima the walls guarding against a tsunami were only about 15 feet tall. the tsunami tsunami that hit was 25 feet tall. and then they put the generators in the basement. that is the fundamental reason why this thing spun totally out of control. all the safety systems got wiped out simultaneously and that's not in the book. this is way outside the textbook that every nuclear engineer has to learn.

 We need new textbooks that are way more scary than the existing textbooks in other words. 

March 23

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