Kyodo: Robot data reveals hole in Unit 2 suspected to be almost 10 square cm; Highly radioactive water draining out bottom of containment vessel — Tepco model shows molten fuel barely underwater — Temperature irregulaties started earlier this month (GRAPHIC)

Published: January 30th, 2014 at 4:24 pm ET


Kyodo News, Jan. 30, 2014: Fukushima No. 2 reactor suppression pool may have 3-cm hole — The suppression pool connected to the No. 2 reactor at the disaster-struck Fukushima Daiichi nuclear power plant may have a 3-centimeter hole through which highly radioactive water is leaking out, the plant operator said Thursday. Tokyo Electric Power Co. said data gathered by a robot this month near the doughnut-shaped suppression pool at the bottom of the No. 2 reactor’s primary containment vessel indicated that the structure is damaged somewhere. […] TEPCO estimated the damaged section could be 8 to 9 square cm in size. If it were a hole, it is expected to be between 3.2 and 3.6 cm in diameter.

A previous estimation by Japan government experts determined there was a hole over 30 times larger: [intlink id=”300-square-meter-hole-reactor-2-pressure-suppression-pool-nisa-analysis” type=”post”]{{empty}}[/intlink]

The line indicating temperature in Unit 2 began to deviate from Units 1 and 3 earlier this month:

Information regarding how the hole may have been created: [intlink id=”nhk-documentary-unimaginable-happening-workers-part-containment-vessel-destroyed-heard-loud-bang-pressure-video-50-min” type=”post”]{{empty}}[/intlink]

See Tepco’s data here (Japanese-only pdf)

Published: January 30th, 2014 at 4:24 pm ET


Related Posts

  1. Breaking: Nuclear fuel found “beneath containment vessel” at Fukushima plant? — Parts inside reactor “no longer there” — “Search barely begun for fuel that burned through” — Workers probe underwater below plant for molten cores (PICS & VIDEO) January 30, 2017
  2. Document shows nuclear fuel burned through bottom of containment vessel under Fukushima reactor — Official: Leakage we observed indicates melt-through by ‘shell attack’ — “This is a very big problem… fuel debris in the PCV is doing something bad” (VIDEO) July 13, 2015
  3. IAEA ***NOT for distribution***: Molten core is suspected to have penetrated Fukushima containment vessel — Prime Minister on 3/11: We couldn’t be in Tokyo if melted fuel went through containment vessel (VIDEO) December 18, 2013
  4. Tepco presentation shows clumps of melted nuclear fuel outside containment vessel — “Many unexpected situations are expected” February 21, 2013
  5. Green, contaminated water fills bottom of Unit 4 – Removed: Report, photos of destroyed containment vessel interior deleted from website — Reporters: We strongly feel that effort from whole nation is needed to face future at Fukushima (PHOTO) February 13, 2014

36 comments to Kyodo: Robot data reveals hole in Unit 2 suspected to be almost 10 square cm; Highly radioactive water draining out bottom of containment vessel — Tepco model shows molten fuel barely underwater — Temperature irregulaties started earlier this month (GRAPHIC)

  • retali8 retali8

    It's likely water is gushing out of numerous places and into the ground, melt out has occurred in all other reactors anyhow, the holes don't need to be that big in reactor 2 to enable melt out do they?

    • pinksailmatt pinksailmatt

      The corium can reach 5000 deg F and thus isn't just a thing being poured out of the hole, it is in fact MAKING the hole.

      I would guess big enough for a tomato…i mean a man, to go thru…for 100 Tons weight…which volume wise would be…

      • humptydumpty humptydumpty

        I wonder how Tepco's robot would be able to find a breech if the molten corium is still in there? I thought the radioactivity was too high for a bot to function in proximity to it. OR maybe the corium has all melted through by now, so now after all this time, they are able to get the bot in there to gather data, and they just painted the little red "droplets" inside the CV to make it look like the molten fuel is benign. It's a cute cartoon but where's Fukuppy?

  • Supposed that hole has existed from the start, it doesn't really matter how big or how small it, does it ?
    I mean, during a period of almost three years, a whole lot of water can even pour from a comparatively small crack :-(.

  • Another hopeful drawing from Tepco showing fuel in containment, lol. Pics or GTFO!

    • usagi usagi

      Yeah, ain't that cute!

    • James Tekton James Tekton

      "Another hopeful drawing from Tepco showing fuel in containment, lol.

      Hey howdy, Eye!

      Nice to see you on board dear.

      Yes, another cartoon!

      "Oh boy George…doo ya tink dere iss radioactive wata leakings al ova da placce dere?…duhhh…droollll…"

      Yes, George, look over there, while we have this other thing going on over here. There is nothing to worry about. Smile…turn on the cartoons for news and information about fuckushima.

      Distractions…distractions…distractions….what's next? Another False flag Event? Oy vey!

      The illusionists are hard at it to keep the Eye focused on what is NOT happening there, or WHAT is happening on the west coast of the Lost Continent of America.

      Ay caramba!!


  • Paulie777

    Split atom make power, screw up, make robot to look at screwup. The folly of man.

  • fireguyjeff fireguyjeff

    Feeling so relieved that the hole isn't bigger than 3.6cm diameter
    instead of 30 times larger!!!


  • Ontological Ontological

    If that is really how big the breach is, then most of the fuel aerosolized into the air.

  • ForgingTowardstheSunset

    "…data gathered by a robot this month…indicated that the structure is damaged somewhere."

    In other news, the pope affirms his faith in the holy trinity and bears continue to defecate in forested areas

  • For our non-metric readers: 10 cm2 is about 1.55 in2 ;-).

    • AirSepTech AirSepTech

      Ahh yep, I could plug that up wit me thumb!

      And stuff a football in that 'big' one too!

      These guys can't be real. They gotta thing for holes?

      I've had a thing for holes since I saw the #3 turbine house roof, with the hole in it from the lid of the death-dart launcher/reactor.
      THAT, was a good sized hole, considering the weight.

      I am glad they found something. Maybe they will find a solution!

  • tinfoiled tinfoiled

    TEPCO also confirms… a largish hole in the roof of reactor #3.

  • PhilipUpNorth PhilipUpNorth

    Number 2 blew down, not up. Pressure was released when molten fuel entered one of the vent pipes that connect the containment vessel with the torus. The 5,000C nuclear lava melted the steel vent pipe, and bam: No more pressure.

    The bulk of the 94 tonnes of molten nuclear fuel, together with additional tonnes of molten steel, melted control rods, and related equipment, fell to the bottom of the containment vessel, and over the next week, melted its way through concrete and steel into the mudrock under the plant.

    During April and May, 2011, corium from Unit2 melted its way through two aquifers and 100' of mudrock to exit FDNPP entirely.

    Of course, I could be wrong about this. The molten fuel could be in the neat little piles shown in the drawing. If TEPCO has any actual evidence to indicate that the fuel is still where they are saying it is, then please, release the data so we can end our speculation. I have seen no evidence that corium cools down after melting, and is heated only by decay heat. I have seen a lot of evidence that ongoing criticalities heat corium to 5,000C. Rads are still going up in Japan. And in the US as well, indicating that Fukushima continues to be a really big problem for the entire planet. Enough said. Don't believe the pretty little TEPCO drawings.

    Where is the damn corium, eh, TEPCO? 😉

    • PhilipUpNorth PhilipUpNorth

      Oh, and that hole in the bottom of Containment2 measures 3 meters, rather then 3 centimeters!
      You betcha! 😉

      • retali8 retali8

        +311 Phil good observations.

        • pinksailmatt pinksailmatt

          That's exactly what I was thinking too.

          Exposing the truth of any of the many details becomes more troubling over time. A tiny slip could cascade the whole deal…just ask Oly North.

    • weeman

      PUN you nailed it, that is what you would expect in a meltdown in mark 1 reactor, it's the other two reactors and 4 unit that is the question.
      The outcome of all these accidents is going to vary, no accident is the same, unit two has best chance of being ex building, the others blow it out, not in.
      Peace brother.

    • HoTaters HoTaters

      PUN, where do you think the #2 corium is now? What state do you think it is in? How far down and out?

  • TheBigPicture TheBigPicture


    World nuclear community needs to stop dickin' around and go in and handle this mess.

    • atomicistheword

      TOP, Their too busy worshipping the god that THEY trust. There's money to be made out of radiation sickness; a win, win all round. FOR THEM!

      Capitalism, nationalism, fascism, national socialism, slavery all the same thing. The opposite of democracy.

      They only like to take, giving back might make them cry.

      All hail the god of capitalism click, click, click,click, BEEP, BEEP, BEEP, BEEP, BEEP.

      • HoTaters HoTaters

        Democracy by the definition of some of us = capitalism, nationalism, facism, national socialism, slavery, because it's all implemented by the same people. Hasn't the U.S. been in the business of supposedly exporting "democracy" all over the world, and for a long time?

        Now the Greeks had a good idea when they came up with democracy, but this person has never seen it in the 20th or 21st Centuries.

    • The world nuclear community is applauding what they are doing in Japan.. No way are they going in; they came up with this concept of hide 99% and admit 1%.

  • Cataclysmic Cataclysmic

    I hate to laugh, as this is not funny, but Unit 2 is king of "Temperature irregulaties" aka broken thermometers. Geez.. Really? Wow.. Duh..

  • James Tekton James Tekton

    "A previous estimation by Japan government experts determined.."

    And there you have it ladies and gentlemen of the realm.

    HERE!!…written above…is your first tip to just stop reading now and move on to another more informative report. That is, if there are any left coming out of nazi/socialist/fascist/communist japan. This is just another horseshirt story to distract from something else.

    The track record is not gonna change. The old Gray Mare is not gonna win the Kentucky Derby as they keep bring her up to the starting line over and over beating the poor dead horse. She is getting older and more radioactive and there seems to be no known modern science that can save her.

    Of course, those dirty horrid evil rottenchildkillers might have the life extension technology that keeps all them wicked nasty stinking snakes alive, but the normal people will ever hear of such a thing in this lifetime.

    Move along…find another more entertaining cartoon. The latest Simpson's Episode offers more than meets the Eye!


  • weeman

    Can I poke holes on tepco analysis please,
    If the hole is of the diameter tepco claims and is located at bottom of vessel and corium that is molten would fill that void and prevent water from escaping and if cold shutdown is a fact, then the corium solidified in hole?
    Get a grip on reality please.

  • HoTaters HoTaters

    Think of how large that hole is in essence, if it's at the bottom of the vessel. All that gravity causing the water (or whatever is flowing) to bear down on that hole.

  • Nick

    I have all the data that I need.

    FUBAR is all that anyone else needs to know.

    Love while you can. Hug your children. Weep for us all, but don't expect TEPCO to wash away your tears with their very pitiful attempts at decommissioning one of the world's largest nuclear generating facilities.

    It has been a mess since Day One. We are now at Day #__________ (doesn't actually matter anymore)

    They have been pumping water down a wormhole for years, much has gone into the Pacific.

    The tanks? What a joke.

    The cover-up? Not a joke at all, just pure wicked evil human crap!

  • There is a hole in the bucket…

    The water is pouring out of the hole in the bucket

    Three years later.. still repeating the same first line of the song, no sticks in sight.