Seisme dans le nord du japon

[asagiri]

Bonjour

Vu dans le Magazine gratuit JIPANGO







Soutien au Tohoku　東日本大震災支援

Informations sur les associations et organisations qui apportent leur soutien au Tohoku.

Si vous organisez des activités pour soutenir le Tohoku,

merci de nous les faire connaître en écrivant à ntjipango@gmail.com (ntjipango@gmail.com)

Nous souhaitons vous présenter pendant le salon en novembre.



Café Voyage　日本の旅

Exposition de photos de voyage et des recommandations faites par plusieurs auteurs de guides de voyage sur le Japon. Il y aura aussi des projections et des coins information.Les visiteurs seront accueillis par des spécialistes du voyage pour recevoir des conseils. Au niveau -1, sur 70 m2.
[Café Voyage : 15h – 18h, du mardi 22 au samedi 26 novembre]

Dans le dernier N° du magazine gratuit mensuel ZOOM JAPON (édts ILYFUNET OVNI)
un dossier complet sur la vie après la catastrophe du 11 Mars dans le Tohoku

[zev]

Petite update:

Plutonium 40km from Fukushima plant
Small amounts of plutonium believed to have escaped from Japan’s tsunami-crippled nuclear plant have been detected in soil more than 40km away, say government researchers, a finding that will fuel already widespread fears about radiation risk [...]

http://www.ft.com/cms/s/0/7e3af460-ece6-11e0-be97-00144feab49a.html

Je sens qu'on va pas finir d'avoir ce genre de news dans les prochaines mois...

[Gnurou]

Un article que j'ai trouvé intéressant et plus visionnaire que la majorité des analyses sur les conséquences du séisme, bien qu'un peu long peut-être. Si, comme l'histoire semble le démontrer, les grandes évolutions du Japon sont une réponse à une catastrophe, qu'allons-nous voir surgir de la catastrophe du 11 mars?

http://gsorman.typepad.com/guy_sorman/2011/10/tokyo-la-g%C3%A9n%C3%A9ration-du-11-mars.html

[skydiver]

France Info, cet après midi annonce des relevés "inquiétants" à Tôkyô même et en banlieue.
2,7 microsieverts/heure à Setagaya et 5,8 à Funabashi. Ces chiffres s'expliqueraient pas des pluies contaminées et le fait que la centrale de Fukushima rejette encore des particules radioactives.

[sleidia]

De plus en plus "drôle" :

Setagaya radiation likely came from bottles beneath floor of unoccupied house

http://www.japantoday.com/category/national/view/setagaya-radiation-likely-came-from-bottles-beneath-floor-of-unoccupied-house

[dibat]

According to NHK, officials now believe that the radiation emanated from the as-yet unidentified contents of the bottles and not the nuclear power plant.


Apparement ça ne vient pas de fukushima.

[Xav243]

Le fait que ça vienne pas de Fukushima semble inquiétant selon l'article. Qu'en pensent les experts du forum?

[Gnurou]

Les bouteilles qui se trouvaient dans la maison contenaient en fait du radium-226 en poudre (http://jen.jiji.com/jc/eng?g=eco&k=2011101400038). La source émettait à plus de 30µSv/h. Cela explique les mesures obtenues à l'extérieur et surtout le fait que la radioactivité n'ait pas baissé après nettoyage. Dans ce cas-là du moins, aucun rapport avec les rejets de Fukushima.

Ca me rappelle que pendant les vacances, les médias français nous avaient bourré le mou pendant quelques jours avec nos greniers qui seraient remplis de produits radioactif: http://www.lefigaro.fr/actualite-france/2008/07/15/01016-20080715ARTFIG00222-dans-nos-greniersdes-objets-radioactifs-.php

Le fait est qu'il y a des sources de radiation qui se retrouvent parfois un peu n'importe où (j'avais lu 800µSv/h pour certains vieux paratonnerres). Depuis l'accident de Fukushima des groupes citoyens se balladent et font des mesures de radioactivité, il n'est donc pas étonnant qu'ils tombent sur des points de ce genre (et qu'ils fassent le lien - parfois prématurément - avec la centrale). Je ne doute pas que l'on ferait le même genre de découverte si ces mouvements avaient lieu en France.

Les articles rapportant cette affaire sont malheureusement très trompeurs, à les lire on croirait que 2.7µSv/h correspond à la radioactivité ambiante de Setagaya. Alors qu'il ne s'agit que de la mesure d'un point très précis - 10 mètres plus loin, on retrouve des valeurs "normales". Bien entendu, pour faire un bon article, ne pas oublier d'ajouter un commentaire bidon style "l'inquiétude est très vive à Tokyo", ni de préciser que les mesures ont été effectuées sur un chemin emprunté par les enfants pour aller à l'école.

Je vais me mettre à lire Libé vu que c'est le seul journal francophone qui rapporte les faits précisément (http://www.liberation.fr/terre/01012365508-la-radioactivite-detectee-dans-une-rue-de-tokyo-n-est-pas-due-a-fukushima).

[zev]

La photo de libe m'a fait un choc, c'est pres de la ou j'habitais y'a 6 ans :p

[zev]

Je me permets de poster un article de l'Independant d'aout dernier qui m'avait echappe:



It is one of the mysteries of Japan's ongoing nuclear crisis: How much damage did the 11 March earthquake inflict on the Fukushima Daiichi reactors before the tsunami hit?

The stakes are high: if the earthquake structurally compromised the plant and the safety of its nuclear fuel, then every similar reactor in Japan may have to be shut down. With almost all of Japan's 54 reactors either offline (in the case of 35) or scheduled for shutdown by next April, the issue of structural safety looms over any discussion about restarting them.


Plant operator Tokyo Electric Power Co (Tepco) and Japan's government are hardly reliable adjudicators in this controversy. "There has been no meltdown," government spokesman Yukio Edano repeated in the days after 11 March. "It was an unforeseeable disaster," Tepco's then president Masataka Shimizu famously and improbably said later. Five months since the disaster, we now know that meltdown was already occurring as Mr Edano spoke. And far from being unforeseeable, the disaster had been repeatedly forewarned by industry critics.


Throughout the months of lies and misinformation, one story has stuck: it was the earthquake that knocked out the plant's electric power, halting cooling to its six reactors. The tsunami then washed out the plant's back-up generators 40 minutes later, shutting down all cooling and starting the chain of events that would cause the world's first triple meltdown.

But what if recirculation pipes and cooling pipes burst after the earthquake – before the tidal wave reached the facilities; before the electricity went out? This would surprise few people familiar with the 40-year-old reactor one, the grandfather of the nuclear reactors still operating in Japan.


Problems with the fractured, deteriorating, poorly repaired pipes and the cooling system had been pointed out for years. In September 2002, Tepco admitted covering up data about cracks in critical circulation pipes. In their analysis of the cover-up, The Citizen's Nuclear Information Centre writes: "The records that were covered up had to do with cracks in parts of the reactor known as recirculation pipes. These pipes are there to siphon off heat from the reactor. If these pipes were to fracture, it would result in a serious accident in which coolant leaks out."

On 2 March, nine days before the meltdown, government watchdog the Nuclear Industrial Safety Agency (NISA) warned Tepco on its failure to inspect critical pieces of equipment at the plant, including recirculation pumps. Tepco was ordered to make the inspections, perform repairs if needed and report to NISA on 2 June. It does not appear, as of now, that the report has been filed.


The Independent has spoken to several workers at the plant who recite the same story: serious damage, to piping and at least one of the reactors, occurred before the tsunami hit. All have requested anonymity because they are still working at or connected with the stricken plant. Worker A, a maintenance engineer who was at the Fukushima complex on the day of the disaster, recalls hissing, leaking pipes.

"I personally saw pipes that had come apart and I assume that there were many more that had been broken throughout the plant. There's no doubt that the earthquake did a lot of damage inside the plant... I also saw that part of the wall of the turbine building for reactor one had come away. That crack might have affected the reactor."

The reactor walls are quite fragile, he notes: "If the walls are too rigid, they can crack under the slightest pressure from inside so they have to be breakable because if the pressure is kept inside... it can damage the equipment inside so it needs to be allowed to escape. It's designed to give during a crisis, if not it could be worse – that might be shocking to others, but to us it's common sense." Worker B, a technician in his late 30s who was also on site at the time of the earthquake, recalls: "It felt like the earthquake hit in two waves, the first impact was so intense you could see the building shaking, the pipes buckling, and within minutes I saw pipes bursting. Some fell off the wall...

"Someone yelled that we all needed to evacuate. But I was severely alarmed because as I was leaving I was told and I could see that several pipes had cracked open, including what I believe were cold water supply pipes. That would mean that coolant couldn't get to the reactor core. If you can't sufficiently get the coolant to the core, it melts down. You don't have to have to be a nuclear scientist to figure that out." As he was heading to his car, he could see that the walls of the reactor one building had started to collapse. "There were holes in them. In the first few minutes, no one was thinking about a tsunami. We were thinking about survival."
The suspicion that the earthquake caused severe damage to the reactors is strengthened by reports that radiation leaked from the plant minutes later. The Bloomberg news agency has reported that a radiation alarm went off about a mile from the plant at 3.29pm, before the tsunami hit.

The reason for official reluctance to admit that the earthquake did direct structural damage to reactor one is obvious. Katsunobu Onda, author of Tepco: The Dark Empire, explains it this way: A government or industry admission "raises suspicions about the safety of every reactor they run. They are using a number of antiquated reactors that have the same systematic problems, the same wear and tear on the piping." Earthquakes, of course, are commonplace in Japan.
Mitsuhiko Tanaka, a former nuclear plant designer, describes what occurred on 11 March as a loss-of-coolant accident. "The data that Tepco has made public shows a huge loss of coolant within the first few hours of the earthquake. It can't be accounted for by the loss of electrical power. There was already so much damage to the cooling system that a meltdown was inevitable long before the tsunami came."

He says the released data shows that at 2.52pm, just after the quake, the emergency circulation equipment of both the A and B systems automatically started up. "This only happens when there is a loss of coolant." Between 3.04 and 3.11pm, the water sprayer inside the containment vessel was turned on. Mr Tanaka says that it is an emergency measure only done when other cooling systems have failed. By the time the tsunami arrived and knocked out all the electrical systems, at about 3.37pm, the plant was already on its way to melting down.

Kei Sugaoka, who conducted on-site inspections at the plant and was the first to blow the whistle on Tepco's data tampering, says he was not surprised by what happened. In a letter to the Japanese government, dated 28 June 2000, he warned that Tepco continued to operate a severely damaged steam dryer in the plant 10 years after he pointed out the problem. The government sat on the warning for two years.

"I always thought it was just a matter of time," he says of the disaster. "This is one of those times in my life when I'm not happy I was right."
During his research, Mr Onda spoke with several engineers who worked at the Tepco plants. One told him that often piping would not match up to the blueprints. In that case, the only solution was to use heavy machinery to pull the pipes close enough together to weld them shut. Inspection of piping was often cursory and the backs of the pipes, which were hard to reach, were often ignored. Repair jobs were rushed; no one wanted to be exposed to nuclear radiation longer than necessary.

Mr Onda adds: "When I first visited the Fukushima Power Plant it was a web of pipes. Pipes on the wall, on the ceiling, on the ground. You'd have to walk over them, duck under them – sometimes you'd bump your head on them. The pipes, which regulate the heat of the reactor and carry coolant are the veins and arteries of a nuclear power plant; the core is the heart. If the pipes burst, vital components don't reach the heart and thus you have a heart attack, in nuclear terms: meltdown. In simpler terms, you can't cool a reactor core if the pipes carrying the coolant and regulating the heat rupture – it doesn't get to the core."

Tooru Hasuike, a Tepco employee from 1977 until 2009 and former general safety manager of the Fukushima plant, says: "The emergency plans for a nuclear disaster at the Fukushima plant had no mention of using seawater to cool the core. To pump seawater into the core is to destroy the reactor. The only reason you'd do that is no other water or coolant was available."

Before dawn on 12 March, the water levels at the reactor began to plummet and the radiation began rising. The Tepco press release published just past 4am that day states: "The pressure within the containment vessel is high but stable." There was one note buried in the release that many people missed: "The emergency water circulation system was cooling the steam within the core; it has ceased to function."

At 9.51pm, under the chief executive's orders, the inside of the reactor building was declared a no-entry zone. At around 11pm (ndz: le 12 mars), radiation levels for the inside of the turbine building, which was next door to reactor reached levels of 0.5 to 1.2 mSv per hour. In other words, the meltdown was already underway. At those levels, if you spent 20 minutes exposed to those radiation levels you would exceed the five-year limit for a nuclear reactor worker in Japan.

Sometime between 4 and 6am, on 12 March, Masao Yoshida, the plant manager decided it was time to pump seawater into the reactor core and notified Tepco. Seawater was not pumped in until hours after a hydrogen explosion occurred, at roughly 8pm. By then, it was probably already too late.

Later that month, Tepco went some way toward admitting at least some of these claims in a report called "Reactor Core Status of Fukushima Daiichi Nuclear Power Station Unit One". The report said there was pre-tsunami damage to key facilities, including pipes.
"This means that assurances from the industry in Japan and overseas that the reactors were robust is now blown apart," said Shaun Burnie, an independent nuclear waste consultant who works with Greenpeace. "It raises fundamental questions on all reactors in high seismic risk areas."
As Mr Burnie points out, Tepco also admitted massive fuel melt 16 hours after loss of coolant, andseven or eight hours before the explosion in Unit One. "Since they must have known all this, their decision to flood with massive water volumes would guarantee massive additional contamination – including leaks to the ocean."

No one knows how much damage was done to the plant by the earthquake, or if this damage alone would account for the meltdown. But certainly Tepco's data and eyewitness testimony indicates that the damage was significant.

As Mr Hasuike says: "Tepco and the government of Japan have provided many explanations. They don't make sense. The one thing they haven't provided is the truth. It's time they did."

[milo]

Si cela n'a pas déjà été posté : http://youtu.be/sdHMZs3mouU

[TB]

Allez, du positif pour une fois :

Les zones touchées par le tsunami, six mois après (http://blogs.sacbee.com/photos/2011/09/japan-marks-6-months-since-ear.html)

[Xav243]

Quel travail remarquable!! Chapeau bas aux ouvriers!

[zev]

En effet, on ne peut que qu'admirer la determination des equipes de reconstruction.

[yokohama]

eh bin je ne trouve pas très normale et correcte vis a vis de la population et de ses victimes que les équipes qui s'occupent de la centrale nucléaire ne réponde pas aux questions des journalistes car ils doivent vraiment des choses à se reprocher... m'enfin la chose positif c'est vraiment les ouvriers qui travail corps et âme pour remettre la comme neuve donc chapeau encore plus bas

[skydiver]

Yoshida Masao, 56 ans et Directeur de la centrale de Fukushima, quitte son poste pour raisons de santé selon ses dires. Il a refusé de répondre aux journalistes quant à la dose de radiations reçue depuis l'accident.

Source: France Info

[skydiver]

Meiji a repéré des traces minimes de césium dans du lait en poudre pour bébé. Leur origine serait à rapprocher des premiers rejets lors de l'accident. Les boîtes sont échangées gratuitement.

Source: web japonais

[zev]

Selon NHK news:

TEPCO: Melted fuel ate into containment vessel
The operator of the damaged Fukushima Daiichi nuclear power plant has announced the results of an analysis on the state of melted fuel in the plant's Number 1 unit.

The Tokyo Electric Power Company, or TEPCO, and several research institutes made public their analyses on the melting of fuel rods at 3 of the plant's units at a government-sponsored study meeting on Wednesday. The analyses were based on temperatures, amounts of cooling water and other data.

TEPCO said that in the worse case, all fuel rods in the plant's Number 1 reactor may have melted and dropped through its bottom into a containment vessel. The bottom of the vessel is concrete covered with a steel plate.

The utility said the fuel may have eroded the bottom to a depth of 65 centimeters. The thinnest part of the section is only 37 centimeters thick.

TEPCO also said as much as 57 percent of the fuel in the plant's Number 2 reactor and 63 percent in the Number 3 reactor may have melted, and that some of the melted fuel may have fallen through reactor vessels.
Wednesday, November 30, 2011 20:02 +0900 (JST)

L'article a ete supprime du site depuis.

2634

[DindonMagik]

Je sais pas si il faut y voir une sorte de censure/conspiration dans le fait qu'il ai ete supprime, car j'ai cru lire un article a ce sujet dans le journal (Yomiuri ou Mainichi) y'a quelques jours. (Je ne dis pas que tu sous-entendais forcement cela hein ;))

[Gnurou]

Je sais pas si il faut y voir une sorte de censure/conspiration dans le fait qu'il ai ete supprime, car j'ai cru lire un article a ce sujet dans le journal (Yomiuri ou Mainichi) y'a quelques jours. (Je ne dis pas que tu sous-entendais forcement cela hein ;))

La même information est relayée dans plein de journaux, dont des français:

http://www.lefigaro.fr/flash-actu/2011/12/01/97001-20111201FILWWW00411-fukushima-enceintes-en-beton-abimees.php

On en a également entendu parler à la télévision japonaise. Donc non, le tout-puissant lobby nucléo-maçonnique n'est pas à l'oeuvre. :p

[neoke20]

TOKYO —
Toshiba Corp says it has developed a revolutionary new technology designed to decontaminate radioactive soil from the area surrounding the stricken Fukushima Daiichi nuclear power plant.
The technology was originally designed to purify radioactive water at the nuclear power plant, but its developers say it also removes 97% of cesium from radioactive soil.

Toshiba said in a statement that the device is currently capable of dealing with 1.7 tons of radioactive soil per day, but it is theoretically possible for a machine capable of processing 100 times that amount. The device uses crystalline adsorbents that have the ability to selectivity remove radioactive ions from liquids, soil and waste.

Toshiba also claims that the machine is capable of decontaminating radioactive ash from garbage incineration plants. The company hopes it will provide a nationwide solution to the problem of dealing with radioactive materials.
TBS reported that Toshiba plans to hold training conferences nationwide from next month to ensure that local governments and other associations across the country are able to properly operate the machinery.


Japan Today



Même si ça m'a l'air d'être une bonne nouvelle, à raison de 170 tonnes par jour, il faudra quand même un sacré bout de temps pour décontaminer le tout !

[Shigu]

Pas une super info, mais ça a bien bougé aujourd'hui dans le Tohoku. Ça faisait longtemps !
Ici, sur Sendai, rien de méchant mais je ne sais pas ce qu'il en est pour les autres.

[Gnurou]

L'alerte précoce a sonné à Tokyo, mais aucune secousse n'a été ressentie.

[zev]

Bouarf pas grand chose quand meme, un petit shindo 4 tres localise, pas de quoi casser 3 pattes a un canard :)

[skydiver]

BBC World a donné un chiffre ce matin: il faudrait 40 ans pour réhabiliter le site de Fukushima et le rendre à nouveau habitable. Ce, nonobstant les problèmes de contamination qui pourrait survenir ou se révéler à n'importe quel moment.

[skydiver]

Un sourire, si vous permettez, par rapport à ce drame de Fukushima.
Depuis plusieurs mois la BBC recevait des mails et courriers classiques de téléspectateurs posant des questions plus que saugrenues sur divers sujets d'actualité dont cette fameuse centrale. Dans un premier temps, la vénérable institution anglaise a cru a des canulars, notamment concernant Fukushima où des "zombies radioactifs" auraient été aperçus à plusieurs reprises depuis le tsunami. Les demandes de précisions affluant, la chaîne diligenta une enquête et s'aperçut que ces courriers émanaient de gens sérieux qui, tous, avaient un point commun: la surdité.
Le pot aux roses vient enfin d'être découvert. La présentatrice doublant en langage des signes les actualités racontaient n'importe quoi et avait lancé cette histoire de zombies.
Elle a depuis été mise à l'écart, la chaîne essaye de comprendre ses motivations et a présenté des excuses à ses téléspectateurs.

Source: BBC World

[sleidia]

C'est possible d'avoir une URL?
Je trouve rien sur le site de la BBC.

[sleidia]

Après vérification, toute l'histoire elle même semble avoir été inventée par un magazine satirique anglais nommé The Poke.
Et bien sûr, certains médias Internet français le reprennent en coeur sans rien vérifier.

[skydiver]

J'ai vu cette information sur BBC World la nuit dernière.

[sleidia]

Bon bah mea culpa alors :)

http://img4.blogs.yahoo.co.jp/ybi/1/e9/ac/toufuski_travel/folder/957065/img_957065_28047907_0?1326179469