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Highest Radiation Ever Detected At Fukushima: 10+ Sieverts An Hour

Tyler Durden's picture


Remember all those idiots who claimed that Fukushima is contained, or better yet, the drama is exaggerated? Perhaps it is time to exile them all, starting with that moron from MIT, to Fukushima where the radiation measured at the base of the main ventilation stack just hit an all time high 10 sieverts/hour. The truth likely is much uglier: this is simply the highest reading the devices are able to record. In other words, there does not exist a device that can capture the true extent of the catastrophe at Fukushima!

From Bloomberg:

“I suspect the high radiation quantity was an aftermath of venting done,” Matsumoto told reporters in Tokyo. “The plant is not running. I don’t think any gas with high radiation level is flowing in the stack.”

Tepco sent three workers around the ventilation stack today after a gamma camera detected high radioactivity levels in the area yesterday, Matsumoto said. The workers were exposed to as much as 4 millisieverts during the work, he said.

The utility will create a no-go zone around the stack and cover the area with protective material, he said.

At least with Chernobyl, 5 months after the explosion it was pretty much well-known what the damage really is. In Japan, however, the ongoing attempt to hide everything from the general population, many of whom will pay for their government's lies with their lives, means that reality will only gradually be comprehended. By the time all is said and done, Japan's demographics will be far, far worse than even today. But who cares: that will be some other administration's (and unborn generation's) problem.


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Mon, 08/01/2011 - 13:36 | 1513307 Reptil
Reptil's picture

yes, that would be a problem. that's 10 Sievert outside the containment building.

not visible here:

recritical no doubt; open air fission, ladies and gentlemen. the "plant is not working" is obvious bullcrap, the molten cores (core on the floor x3) are fissioning on and off. and just when they were expected to cool down a bit, this happens. It's really uncontrollable. I suspect it's water, coming straight from the containment vessel. 10 Sievert is a lot. It means no human beings can be there to fix things, or man the water decontamination machines.

get your tan, and bring your pregnant women:

helpful to offset the bisphenol-a effect:


more useful information here:

they'll have a hell of a wakeup call in a few hours.

Mon, 08/01/2011 - 13:10 | 1513321 YHC-FTSE
YHC-FTSE's picture

There were at least 5 posters on ZH who advocated encasing the whole plant with tons of earth and lead shortly after the disaster so obviously the Japanese govt don't visit ZH. 


It's difficult to believe the readings considering 6-10 Sv mean Severe nausea, loss of appetite, haemorrhaging, infection, diarrhea, skin peeling, sterility, central nervous system impairment, and death. 10+ Sv is incapacitation and certain death. You can't hide the symptoms and you can't wish it away with propaganda so I suppose we're about to see some bad news again from Japan in the following weeks/days.

Mon, 08/01/2011 - 22:29 | 1513375 Reptil
Reptil's picture

No. That's impossible. The plants are built on a very weak topsoil. This foundation would not hold the extra weight, it would collapse and slide into the ocean, where the molen cores (3) would meet the cold ocean water. This would mean a huge explosion that would dwarf a militairy atom bomb for amount of pollution. A china syndrome but then on super steroïds.

Regardless, the japanese government has neglected opportunities to protect it's citizens, especially pregnant women and children are put in danger. They've reacted in a manner that suggests the will to kill a large part of their population, presumably to attain a stable status quo.

They should've evacuated, inmediately. This would've crashed TEPCO shares, sending the energy company and the nuclear industry as a whole into bankruptcy.

Where, in my humble opinion, they belong.

Tue, 08/02/2011 - 00:08 | 1515624 tip e. canoe
tip e. canoe's picture

The plants are built on a very weak topsoil.

boy that was smart.

where they belong, imho, is in those fucking reactor stacks sacrificing their lives to save as many others as possible.   they and a few others on this side of the Great Pacific Garbage Patch.

Mon, 08/01/2011 - 13:11 | 1513323 Use of Weapons
Use of Weapons's picture



This hasn't really made the news in the west yet, but there's some fairly serious concern about tundra fires & methane deposits - 2007 was the largest major one in Alsaka ( < note, only 200 km2 which is tiny). If you pay attention to the scales above, you'll see that the areas are significantly larger.


Radiation to the left of me, outgassing methane to the right... here I am, stuck in the middle with a raging Boehner

Mon, 08/01/2011 - 13:18 | 1513358 YHC-FTSE
YHC-FTSE's picture

I seem to remember that there were concerns about the same thing (Methane gas trapped in the permafrost being released by melting) in the Siberian tundra a few years back. 

Mon, 08/01/2011 - 13:28 | 1513413 majia
majia's picture

summary of widespread contamination in Japan with citations


Mon, 08/01/2011 - 13:39 | 1513482 Slin
Slin's picture

The Japanese govt is fully reponsible for not alerting the people.  Families and children will suffer for years to come because they had faith in thier leaders. 

Mon, 08/01/2011 - 13:40 | 1513484 Jim in MN
Jim in MN's picture

Oddly, a new New York Times article on the Japanese population going DIY with radiation monitors (not exactly new news, but the details keep getting nastier).


Mon, 08/01/2011 - 15:06 | 1513894 Reptil
Reptil's picture

Safecast website (home of Japanese DIY radiation measurements)

A guy living in Japan, talking about the contamination:

An effort of some japanese (and americans) to inform the public.

Local and State government measurements:


Mon, 08/01/2011 - 13:48 | 1513517 rustymason
rustymason's picture

Karl Denninger is one of those who called all the concern surrounding Fukushima "fearmongering BS." 

Mon, 08/01/2011 - 13:56 | 1513545 dropdeadfed
dropdeadfed's picture

Move everyone out and nuke the site.

Mon, 08/01/2011 - 14:27 | 1513674 slewie the pi-rat
slewie the pi-rat's picture

in my constant work upon myself to become a better troll on zH, i keep in touch w/ arnie's website whenever i am swept away by the nuclear paranoia.  

Fairewinds Associates, Inc | Leveling the Playing Field

that "black rain" piece is good! Ex Japanese Nuclear Regulator Blames Radioactive Animal Feed on "Black Rain" | Fairewinds Associates, Inc

as is this one: Hot Particles From Japan to Seattle Virtually Undetectable when Inhaled or Swallowed | Fairewinds Associates, Inc

and this one, too:  New Analysis of Unit 3 Fuel Pool Video Reveals Top of Fuel Bundle | Fairewinds Associates, Inc

somewhere i think he mentioned that he thought "the worst was over!" but i may be mistaken. or, he may have just been making a statement about the economy, of course.

according to arnie, they are making the TENTS!  first, for #1, and so on.  so, everything is gonna be A-OK, BiCheZ!


Mon, 08/01/2011 - 14:39 | 1513748 Incubus
Incubus's picture

This was not foreseeable.  Completely unexpected. 

I suppose some of you will be in the market for a three-eyed, six-legged japanese wife in the coming years? 

Mon, 08/01/2011 - 15:25 | 1513950 Use of Weapons
Use of Weapons's picture

If you want some fun -Google has made the Russian gov some super fun tools. Sound effects & everything.

Flash based, and I suspect largely full of bullshit numbers, but hey - that's what I expect when I want data! Movie quality! Bleeps when I mouse over a radioactive source! Animations of radar sweeps!

But back to the boring realities of life... Public crowd-sourced project that I hadn't seen before, most popular in Russian territories. Note: numbers are # of reports, not Sivert #'s, so you have to read the reports first. More accurate / honest than the first one, for sure [MoP using privately owned geiger counters - it also uncovered a lot of of ex-CCCP sites]

Specific Japanese crowd source project -- not a source I've ever seen before, and based on current live feeds (multiple sources)

Anyhow, if you want to worry, just go to places like or


Mon, 08/01/2011 - 16:52 | 1514357 a female faust
Mon, 08/01/2011 - 19:12 | 1514740 a female faust
a female faust's picture

never mind.

Mon, 08/01/2011 - 20:56 | 1515192 TerraHertz
TerraHertz's picture

"Highest radiation ever detected at Fukushima"?

Not so. The highest was 266 Sv/Hr (not a misprint!) in the drywell of reactor #1, on 3 July 2011. After which they stopped reporting the values (again.)

Here are the 'current' readings and graph from TEPCO's own data:

There's been on/off reporting of this parameter since the start of the disaster. It's pretty clear that there is ongoing intermittent recriticality in the corium melt from reactor #1, that ended up in the drywell (basement) of the building. TEPCO stopped reporting the radiation value from there after the first time it spiked extremely high. They claimed 'must have been measuring equipment failure.' Then after a long silence they started reporting the figures again when it entered an interval of (relatively) stable values in the 40 to 50 Sv/Hr range. Then it started spiking over 200 Sv/Hr again, and their reporting got spotty once again. At the start of July it hit a new record of 266 Sv/Hr, since which they completely stopped reporting. Ongoing recriticality just doesn't fit on the Japanese government's 'roadmap'.

Naturally, no one has gone down to have a look in the drywell to see what's going on.

Tue, 08/02/2011 - 00:03 | 1515674 tip e. canoe
tip e. canoe's picture

"In Japan, however, the ongoing attempt to hide everything from the general population, many of whom will pay for their government's lies with their lives, means that reality will only gradually be comprehended."

not if this article & comment thread get translated into Japanese...

one of your very best TD, you've done right by these people.   they are the ones that need to read this, not us.   and thanks for all the links everyone, even though my heart hurts right now as the gravity seeps in.

don't have much else to share, except this seems fitting -- Mt. Fuji in Red:

did Kurosawa dream the future?

Wed, 09/14/2011 - 04:28 | 1667276 chinawholesaler
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