NHK, Tepco confirm steam came up from underground at Reactor No. 1 — Now 4.7 Sieverts per hour, almost 20% more than in June

Published: October 17th, 2011 at 6:33 am ET


FUKUSHIMA, Oct. 17 — Mochizuki of the Fukushima Diary website has provided a summary of an Oct. 15 report by NHK that reveals “it turned out to be true that water vapor (steam) was splashing (erupting) from underground in June” at Fukushima Daiichi’s No. 1 reactor.

“According to Tepco, it was splashing from underground in June, but now it’s stopped,” the summary continues.

An Oct. 13 measurement in the same location of Reactor No. 1 detected radiation of 4.7 Sv/hr, almost a 20% increase over June’s measurement of 4.0 Sv/hr.

Mochizuki finishes by noting, “It is assumed that melted fuel rods are sinking deep underground, which is called China Syndrome.”

Read More: Breaking News: Water vapor splashed at reactor 1, 4.7 Sv/h

See also:

  • [intlink id=”report-govt-source-ive-heard-about-steam-coming-ground-concerned-kind-reaction-be-occurring-underground-writes-plant-worker” type=”post”]Report: Gov’t source says “I’ve heard about the steam coming out from the ground, and I am concerned” — “Some kind of reaction may be occurring underground” writes plant worker[/intlink]
  • [intlink id=”very-serious-and-alarming-development-workers-say-ground-under-fukushima-plant-is-cracking-and-radioactive-steam-is-coming-through-melted-cores-may-be-moving-out-of-buildings-video” type=”post”]Report: Workers say ground under Fukushima plant is cracking and radioactive steam is coming up — Melted core may be moving out of building (VIDEO)[/intlink]
  • [intlink id=”6-8-quake-hits-fukushima-tsunami-warning-issued-cracks-in-ground-and-escaping-steam-started-after-two-large-earthquakes-in-the-last-few-weeks” type=”post”]Cracks in ground and escaping steam had been reported “after two large earthquakes in the last few weeks”[/intlink]

Google Translation of No. 1 to build the house amount of radiation is still high, NHK Oct. 15, 2011:

[…] In Unit 1 of Fukushima Daiichi nuclear power plant, the “melt down” and the other was believed to damage the reactor containment vessel and, in the basement of the reactor building has accumulated a large amount of high concentration of polluted water.

TEPCO reactor building of Unit 1, in order to re-examine the first floor near the southeast side of the steam had come out from underground in the June survey, 13, put a radio-operated robot, radiation looked at the amount.

As a result, in June 4000 was millisievert per hour at most, a survey by the 13th, still has a very high-value measures the amount of radiation 4700 mSv.

Meanwhile, the steam was out in the June survey is that it was not confirmed. 4700 mSv, the Fukushima Daiichi nuclear plant in the building will be second only to the high value of 5000 mSv was measured at the second floor of Unit 1 in August. TEPCO, this high dose, to watch that is water vapor erupted because contaminated water trapped in the basement, future research also are considering the polluted water in the basement.

Published: October 17th, 2011 at 6:33 am ET


Related Posts

  1. Radiation at Reactor No. 1 skyrockets — Now over 200 Sieverts per hour May 23, 2011
  2. Highest Yet: 2 Sieverts per hour detected in No. 1 reactor building on May 13 May 14, 2011
  3. Highest Yet: Radiation inside Reactor No. 1 drywell rises to 250 Sieverts per hour June 4, 2011
  4. Off the Chart: 225 Sieverts per hour at Reactor No. 1 — Highest radiation dose yet measured May 30, 2011
  5. Radiation dose spikes to 48 sieverts per hour at Reactor No. 1 — Highest level in months — Remained stable until 10-fold increase — Instrument failure? February 20, 2012

77 comments to NHK, Tepco confirm steam came up from underground at Reactor No. 1 — Now 4.7 Sieverts per hour, almost 20% more than in June

  • milk and cheese milk and cheese

    Start putting your affairs in order. Not that it matters.

  • Heart of the Rose Heart of the Rose

    Finally….did they also mention steam coming up around it and between reactor 1 and 2?

  • StillJill StillJill

    And,…have a packed ‘bug out’ bag,….

  • Bleifrei Bleifrei

    any kind of nuke-Radiation coming out there
    around the clock
    more and more and more contamination over wide range

    only 1 way to stopp
    spoon by hand out the waste-(dead- man-job) , bagged and packed in lead glass… or waiting and all the bad comming out slowly quiet till it is gone away
    and travel around in and with all elements.. ( tepco art of colt shut down)

    • StPaulScout StPaulScout

      “….Spoon out by hand….”

      No human could get close enough, long enough to pick any of it up. It is also in a molten state, you can’t pick that up with anything. Remember TEPCO said they would start to clean it up in ten years provided the technology was invented that would allow them to.

      • stock

        Good reminder
        Divide, absorb neutrons, cool.

        simple enough in theory, unless the blob was a 5000 degree, fluid mass of radioactive spewing mess, steam spitting, earthquake causing nightmare that also happened to be underneath a tangled blown up mess of steel and concrete (also very radioactive), and on the ocean, occasionally dipping into ground water with belches of steam between bouts of criticality, and of course always subject to more earthquake and tsunami, not to mention typhoons.

        Now throw in a lying greedy corporate monopoly and a dysfunctional government without a real military force to take charge of the situation. Now throw in some old school corruption companies like GE who are now financial giants that also control the media. To add to the fold, place this in a country that respects and listens to their government almost without thinking and add an earthquake and tsunami of epic proportions to their woes.

      • stock

        Take this concoction and blend it with a financial and political world that is on the edge of revolt, and at least economic collapse. Now dumb down the populace with “Reality” shows and do an effective news blackout.
        Finally, have the enemy come in 60 different types of radiation and chemical toxicity, each with specific countermeaures which are not available to the average joe. Complicate the issue with nuclear scientists who are beholden and filled with 4 decades of lies from regulatory agencies that have gone beyond just being captured by the industry that are supposed to control, they have launched into all out promotion of nuclear. Now make the enemy invisible, with no smell, and can only be detected by complicated instruments that are outside the financial range of most everyone affected. And make the enemies effects to occur mostly over a period of years of decades.
        Throw on top of this, not just the sickness and death, but the actual destruction of the human DNA and all the DNA of the wonderful animals and plants that we have turned to serve our purposed, we are their caretakers and we are destroying their DNA, perhaps creating death or maybe monstrous mutations.

  • bmurr bmurr

    saving the planet is too expensive.

    tepco has decided it is too expensive to build a barrier under the plant to protect from the fuel melting onto ground water, while the alternative is going to result in the total destruction of whats left of the country.

    Im so glad tepco execs care so much about their stock holders. it really shows their human side…

    • Misitu

      their stock value is so near zero it must amount to a cold shutdown of the corporation

      • ocifferdave

        I look at their stock price every day. It went down into 100+ (yen?) a share, then up to 500+, then back down to about 200 lately. It used to be 2500 pre-fukushima.

        • Misitu

          surprising bounce… I wonder who still has those shares. Or possibly a hedge fund or one of those contracts for difference they try selling to gullible wannabe stocks punters.

          or honourable japanese citizens flogging them to grannie


          • Cataclysmic Cataclysmic

            One might easily concur that other like minded corporations have bought and upheld the stock price…just as Tepco has no doubt pledged to do for them when they are suffering such bad publicity… time will allow the cable media propaganda machine to repair the public opinion and allow the company to remain viable through this difficult time, emerging profitable, with help of extra tax on Japanese, and it’s friends, perhaps GE westinghouse, Hitachi, and who knows what other corporations buying the stock, and investing in the nuclear power bubble. This industry is the culminating argument that “free market” capitalism works.

  • Anthony Anthony

    So Fukushima is *permanently* and severely irradiated? Of course they are glad this didn’t super explode, out of sight out of mind mentality. But I think the stakes are actually higher and much much worse with the corium travelling freely beyond human intervention of any kind now. We can hope it sinks in on itself and stems future emissions.

  • ion jean ion jean

    Those ELITE NUCLEAR sons of bitches better start digging like gophers underneath no matter how deep they have to go…this steam ground explosion/eruption has been going on for weeks now, corium contacting groundwater, raising oxyhydrogen levels to the point of explosion

    Now we know just how much plutonium exploded towards the U.S. in March…and TEPCO will now tent and “chimney” the reactor rubble to force the majority of radioactivity into the upper atmosphere, and continue to incinerate all their garbage. radioactive as it is, giving even more up to the jetstream

    It will arrive on the North American continent somewhere, like the whipping tale of a dragon, we will not know from day to day where it will land

    But it will deposit onto OUR mountaintops just the way it’s doing in Japan, and will wash down to where we live with the rain too…

    And enter the rain-air-grass-cow-milk-human chain and the rain-soil-leafy-green-human chain. We have the world’s most radioactive wheat already in terms of length of dose in decades

    This is either an act of war, or at least an international crime, where’s the DOD and DHS when you need ’em?

    Oh yeah, wasting our money preoccupied with corporate interests and controlling the masses and furthering the agendas of the DOE/NRC/IAEA/GE Hitachi/Exelon/Entergy, etc.

    and so the world goes round and maybe that’s why our country’s BROKE? D’ya think it was mom and dad’s new garage roof and once a month Red Lobster and a movie that broke the bank? Or is it more likely two billion dollar weapons that don’t even work, times a thousand other idiot decisions over the years…you decide

    Then Occupy Wall St and tell the 1% to End All Nuclear Power Now cause they really don’t have a clue unless they are on every day

    • BreadAndButter BreadAndButter

      * gets B&B’s inofficial “rant of the day” award (at 8:57 AM!)

      +1 & thank you

    • dharmasyd dharmasyd

      @ ion jean
      Excellent analysis. Boils dow to our government protecting us from a few highjackers who might kill a dozen people, or maybe even a few thousand. No comparison with destroying the whole gene pool of the planet.

      But, as I’ve said before, the splitting of the atom requires evolving beyond the use of violence. Millenia of violence, in an effort to gain bigger and better, stone, arrow, weapons of all kinds to beat the other guy viloently led to the evolution of the unltimate weapon of the destruction of all life on earth.

      The Atom Mandates the Evolution of Consciousness beyond violence.

      Pardon me, I’m just johnny one note on this!

  • roxy

    something strange going on, they are acting totally out of japanese character which is usually honesty…

    too hard to admit the full scale because its totally off the scale by now., even if you were to cap it (if it was at all possible which it isnt) you still have all the comtamination out there, in the food, the oceans,. the lot,, its too little too late,,,
    atleast lets work to save parts of the souther hesmiphere and build our own little island for a few billion people?? yeah right////

    we need someone to intervene if japan isnt going to do anything,, living the lives of cowards…

    • ion jean ion jean

      Ah, but remember this undercurrent of resentment stemming from 1945, the U.S. pushed and built Japan’s nuke power industry, honest and beautiful as their culture may be, if they know they’re screwed, which they do, then what better passenger to share the ride in their “Handbasket to Hell” than their old friend the United States of Corporate America?

  • StillJill StillJill

    ion jean–magnifico!

    Yeah,….I’m reaching the boiling point myself. Just stomached 6 minutes of fox news–all six minutes devoted to the Indy car driver who died yesterday. Now, they are going to interview the bloody folks who built up the retaining wall for Crissake.
    Let’s hear from the pit crew for the next hour Rupert Murdock,…..something important like that. I feel for the man, his wife and two small sons. Sometimes,…when you PLAY,…you have to PAY. Cause and effect. Move on!

  • Fukushima: Plutonium fallout, Radiation sickness spreads
    Canadian National Newspaper *VIDEO*
    Plutonium has for the first time been detected in soil outside Japan’s troubled … as well as of the widespread radiation poisoning sickness and death …

  • ion jean ion jean

    At least Fox has been giving the protests some coverage, though full of whiny-assed critique from Stossel..

    The economists/elitists rap about justifying immense wealth with words like “they earned it” is getting OLD! The fact is they STOLE it at the expense of children’s health
    in the case of nuclear power.

    Are the half-lives now producing “half a life”?

    That’s a crime, that’s mass murder.

  • StillJill StillJill

    Now we’re gaining TRACTION! 🙂

  • Whoopie Whoopie

    New Tweet:
    TEPCO refusing to pay out for burglaries in no-entry zone

    • BreadAndButter BreadAndButter

      Good find Whoopie – how sad… they had the same problem around Chernobyl, where stoves, fridges and furniture were stolen from the apartments – who could be dumb enough to steal a contaminated fridge and put it up at home???

      • Whoopie Whoopie

        I agree. I feel so bad for them. They have no recourse, no way out, food and water contaminated – and no way to recoup ANYTHING. Can’t sell their land – and if they decide to leave, guess who gains EVERYthing they ever had: TEPCO/GOV Who will never EVER compensate the people for anything. So sad.

      • lam335 lam335

        Actually, I heard that after Chernobyl people looted and stole stuff from the zone in order to sell it on the black market, so presumably it was sold to people who had no idea where it came from. If looting is going on in Fukushima, perhaps that is what the looters have in mind–there’s no telling where the stuff might end up getting sold.

        Better think twice before buying any cheap used Japanese goods off of ebay.

      • Cataclysmic Cataclysmic

        Warning… do not buy appliances on Japanese Craigslist.

  • Whoopie Whoopie

    This morning, I’ve been wondering exactly WHY Solyndra went bankrupt:
    Here’s THE FACTS if your interested:

  • STEAM!!!!

    Free Saunas for everyone!!!


    Build a house over a fissure and get free Heat!!!


    Unlimited free Lattes!!!

    Party like its 1999

    red red wine

  • OneWhoRelates

    The Situation has now been confirmed by TEPCO to be in the WORST case scenario. Not that we who come here to ENENEWS, did not believe, suspect, or have a general scientific understanding of the likelihood of this being the case.

    We can now expect the greater part of Japan and possible near by countries to become noman’s lands due to radioactivity. Given that the weather will continue to redistribute the radioactive materials.

  • Doom on?

    Fukushima and the Doomsday Clock


    When dreadful events occur, reporters, readers, and interested citizens contact the Bulletin of the Atomic Scientists asking whether we will move the minute hand of the Doomsday Clock. The alarming nuclear disaster at the Fukushima Daiichi Power Station on March 11 prompted e-mails and calls to our office seeking the Bulletin’s reaction as well as accurate information about what was happening in Japan. The Bulletin responded by devoting its website to daily briefings from experts in Japan and to news from Bulletin writers on what they were hearing about this second-worst disaster in the history of the nuclear power industry. Additionally, the Bulletin will take deeper dives into the lessons and impacts of Fukushima in the September/October issue of its digital journal.

    Still, the larger question remains: Should we move the hand of the Doomsday Clock? What does the Fukushima event imply for humanity’s future on the planet?

    What is the Doomsday Clock? The Doomsday Clock is the indicator of threats to human survival. The editors of the Bulletin of the Atomic Scientists used it in 1947 as the cover design of the magazine to convey the dangers we faced from nuclear weapons. They moved the hand in 1949, when the Soviet Union tested its first atomic bomb, confirming the scientists’ worst fears that the creation of the bomb would lead to an arms race between the United States and the Soviet Union. Since then, the Clock hand has moved 18 times — closer and further away from the metaphoric midnight, which signifies the end of civilization from a nuclear holocaust.

    • Of course, nowadays other technologies can also spell doom for humanity — from the coal-fired power plants and fossil-fuel-burning engines that spew carbon dioxide into the atmosphere and cause climate change to the advances in biological and chemical weapon technologies that threaten global security. Doomsday may come, in other words, in forms so rapid — be they nuclear threats, biological agents, or climate change — that we humans may not adapt in time to prevent our own demise.

      How do we determine the time? In annual Clock discussions, the Bulletin’s Science and Security Board — the keepers of the Clock — reviews the trends and current events that reveal how well or how poorly humanity regulates the perilous forces unleashed by our own ingenuity and industry. Moving the minute hand of the Doomsday Clock is a judgment, then, an assessment of the human capacity to control technologies that can lead to irreversible catastrophe — to the end of civilization. With growing worldwide interest in nuclear energy for economic development, it’s important to know how well firms and societies are handling this dangerous technology.

      Questions for a post-Fukushima world. The Bulletin’s Board members are following the events at the Fukushima Daiichi nuclear power plant in Japan very closely. Questions about the continuing disaster range from the detailed and technical to the societal and ethical; the answers will have implications for any long-term commitment to nuclear power.

      • On the technical end, it appears that the underlying cause of the three core meltdowns, the hydrogen explosions, and the subsequent release of radioactive material was the loss of coolant to the nuclear cores, which was ultimately due to the loss of electrical power to the reactors. Without power to circulate the water that cooled the fuel rods, nothing could have prevented the core meltdowns. In light of this failure, questions center on reactor design and handling of nuclear fuel. Can reactors be designed without a reliance on electrical power to maintain the proper core temperature? In the event of system failure, are there better alternatives to human intervention? Stronger safety designs have been proposed in the past — ones that are more straightforward and less Rube Goldberg-like than the complicated systems currently used. Why haven’t they been developed? Meanwhile, the handling of nuclear fuel continues to defy logic: Why is spent fuel still stored at power plants — raising the odds of damage and the subsequent release of radioactive materials in accidents? What exactly are the obstacles to placing spent fuel in long-term storage repositories?

        • A second set of questions focuses on operations, regulation, and public knowledge about nuclear reactors. How can regulatory agencies maintain independence from the nuclear industry and enforce rigorous safety standards? What prevents the industry from being more transparent about operations, especially when leaks and mishaps occur? If existing regulatory arrangements appear inadequate, then could a different structure of economic incentives encourage utilities to make their nuclear power plants safer and more secure? In the United States, for example, current law limits industry liability in the event of an accident. Does the limit on legal liability in the event of an accident reduce firms’ incentives not only to develop the safest designs possible but also to ensure the most rigorous oversight of maintenance and operations?

          More broadly, how can societies and communities meet their energy needs with the least risk and the greatest payoff for economic development? Are there alternatives based on precautionary principles — first do no harm — that involve less peril to safety, health, and community than nuclear or fossil-fueled power? Are we locked into the current energy development path? How should we think about the trade-offs between injury and disruption from energy technologies and future injury and disruption from climate change?

        • Misitu

          Taco, I read more recently that the loss of coolant is suspected as caused by the fracturing of pipework by the earthquake, and that timings confirm this: that the tsunami, flooding, and battery/diesel failure just put the icing on the cake.

          Certainly, the pipework had known faults beforehand.

          • dharmasyd dharmasyd

            I read that too. Don’t remember where.

          • Misitu

            dharmasyd: it was within the last month I think, and likely on this site.

            Readings taken at the time indicate that melt started before the tsunami arrived.

            At the time, a further comment, if I recall correctly from an insider fuxu tweet, said that the pipework was already compromised before the quake.

            Must break now, hopefully will chase up later, but don’t hold breath.

          • Elenin Velikovsky Elenin Velikovsky

            Hey you guys who’re on right now, if you can get LINK-TV,
            they are running a new-today special about Chernobyl/Three-Mile-and
            Thyroid cancers, ring-around-the-neck….
            This is ON right now, started on the hour, and they will
            run this episode a few more times this week, at least.
            I’m watching on Dish Network right now.
            This is a Great Documentary, you’re all going to want a copy.

  • dosdos dosdos

    The thing that is ragging my brain today is that TEPCO finishes erecting the tent around unit one and immediately brags to the press that radioactive emissions have been cut in half since September. All that tells me is that half of the radiation release is coming from unit one, since the tent is tall enough to move the emissions being vented out the top away from the plant where the readings are taking place. More lies……

  • excecutioner

    they are venting out the stacks now…rads will spread far and wide. Levels will decrease on the ground near fuku1. CRIMINAL!!!

  • Came to a scary conclusion…

    The japanese have released helicopter data @ ( However they are reporting cesium in this data…

    Here is my question / conclusion…

    Cesium is a beta emitter (with a short energy emitter). 2 inches…
    Plutonium is an alpha emitter: (even shorter energy emitter)…

    Now if they are detecting beta radiation from a helicopter (which they have stated they are). They would have to be using some sort of laser / or IR scan to detect the radiation (which is hundreds of feet below on the ground)…

    How they can detect the differences between the two raise many questions in general. But why are they not reporting Plutonium on these Tests?

    Are they fabricating the results? or are they simply Leaving out the data on more harmful elements?

    How are they failing to detect products such as plutonium, strontium, and polonium…

    When they can detect cesium (from hundreds of feet away)…

    So to me it is obvious that the japanese are not being frontal / forthright about this data.

    So I doubt these models are in any way adequate / or trustworthy.

    • Whoopie Whoopie

      It is ALWAYS a learning lesson from you TG. Whether I RETAIN it ALL is the question. Poor memory PLUS so much Info coming out all the time, puts my brain on a freeze. But the FACT remains, we are witnessing something never before witnessed. It dwarfs Chernobyl in every aspect imaginable AND it’s not even close to being contained yet. Between you and Outnow, I’ve learned enough to tell me NUCLEAR WILL NEVER EVER BE DEEMED SAFE, at least not in my mind.
      P.S. Did you get my email? Let me know, if not I’ll resend explaining further, ok?

    • dosdos dosdos

      Cesium 137 is a beta emitter, but it decomposes into Barium 137, which has an extremely short half life (milliseconds) and almost immediately releases gamma. What they are probably doing is searching for gamma from the barium and calling it cesium. That is pretty much SOP for cesium, since it’s much easier to detect that way.

  • lam335 lam335

    Actually, cesium apparently emits both strong gamma rays and also beta particles. so maybe the aerial measurements just pick up the gamma:

    “Cesium (chemical symbol Cs) is a metal that may be stable (nonradioactive) or unstable (radioactive). The most common radioactive form of cesium is cesium-137…. It is also very useful in industry for its strong radioactivity. […]

    It decays by emission of a beta particle and gamma rays to barium-137m”

    • lam335 lam335

      So according to the EPA, Cesium decays to Barium. Since Obama has chosen to ignore the problem as it has rained down on (and accumulated in) our country for 7 months, we should henceforth call it Barry-um. It’s destined to be one of his most enduring legacies.

      • So we can clearly consider the data as useless…


        As it in no way represents the ‘actual level of contamination’; as: The only information it ‘technically provided’ was that the entire area is indeed affected; However, it is unknown ‘truly to what degree’.


        This would mean that the entire city needs vigorous surveying performed. While being temporarily evacuated until such tests are performed by a non affiliated entity of Tepco.

        That would be my conclusion…

      • Dr. Anne Lee Tomlinson Maziar anne

        Along with GOM oil spill. Worse even than Katrina. His legacy will include his support for MOX and new nuclear reactors.

        • “Nuclear power is not emissions-free. From uranium mining, milling and enrichment to construction and waste storage, nuclear uses fossil fuels. Studies show that there will be a net energy loss – that is more fossil fuel support than electrical output, once our limited amount of high grade ore is depleted. Just like oil, uranium supplies are dwindling.
        • “Even nuclear industry executives aren’t convinced. One described nuclear expansion as ‘comatose’ and an option that would give his chief financial officer and Standard and Poors ‘a heart attack.’….”

        He needs to stop reading Harry Potter.

        He needs to stop bankrupting the nation. Nuclear energy is cost prohibitive. Depleted uranium used in this country to strengthen concrete and golf clubs and used against the populations of the Middle East and Afghanistan are weapons of mass destruction. Nuclear power plants are weapons of mass destruction against his own people. He and fellow Democrats and Republicans will go down in history as having killed more people than Stalin. Almost all the politicians are equally guilty.

  • mojoomla

    I am completely confounded…

    NHK English News says everything is neat and tidy around Fukushima now and review of evacuation will be soon considered :-

    Is NHK and the Japanese Govt. bullshitting the entire world with white lies ?
    Is that possible at all ?

    • dosdos dosdos

      It’s simple economics, easier and cheaper in the short run (while the politicians are still in office) to kill its citizens with the withholding of information than to admit the truth and do something about it. Money talks, life walks.

  • Heart of the Rose Heart of the Rose

    Black lies…they are fooling the world with dark..deep..lies.

  • Bleifrei Bleifrei

    steam came up from underground

    H2O +(4700µsivert what ever all include)/ccm * time * speed = ?

    i feel sick …