New Asahi doc: NISA team knew of triple meltdowns by March 18 — Kept secret until Tepco’s admission two months later — Says melted fuel only ‘largely’ submerged in water

Published: March 4th, 2012 at 3:25 pm ET


Title: NISA’s ad hoc team pointed to reactor meltdowns early
Source: – AJW by The Asahi Shimbun
Author: By TATSUYUKI KOBORI/ Staff Writer
Date: March 04, 2012

According to documents that The Asahi Shimbun obtained through a freedom-of-information request

  • Two months before it was made public that fuel melted in three reactors at the Fukushima No. 1 nuclear power plant, a team at the Nuclear and Industrial Safety Agency deduced it
  • Nothing was done with the sensitive information
  • The [NISA] team concluded in a report that meltdowns occurred at the No. 1 to 3 reactors as of 2:45 p.m. on March 18
  • [Tepco] acknowledged a meltdown at the No. 1 reactor on May 15
  • Those at the No. 2 and 3 reactors [were acknowledged] on May 24
  • NISA acknowledged the meltdowns only after TEPCO’s announcement
  • The team’s analysis was not utilized for explanations to the public or other initial responses to the nuclear disaster
  • On March 15, radiation levels sharply rose at the No. 1 and 2 reactors, suggesting that melted fuel had fallen to the bottom of the containment vessels
  • Report said stable conditions continued as long as water was pumped in from the outside because melted fuel, accumulated at the bottom, was largely submerged

Read the report here

Published: March 4th, 2012 at 3:25 pm ET


Related Posts

  1. “Huge Problems”: All parts of fuel rods appear to have melted at all 3 reactors admits TEPCO May 17, 2011
  2. AP Headline: “Japanese govt kept meltdown risk secret” — NISA spokesman replaced after letting it ‘slip out’ during press conference March 10, 2012
  3. Japan nuclear agency finally admits fuel has melted in reactors 1, 2 & 3 April 20, 2011
  4. Book: US gov’t was considering plan to evacuate all 90,000 citizens living in Tokyo — US knew fuel had melted early on via Global Hawk data August 18, 2011
  5. Exposed? Asahi: Water may not be reaching part of melted nuclear fuel from Reactor No. 2, says unnamed Tepco official February 7, 2012

13 comments to New Asahi doc: NISA team knew of triple meltdowns by March 18 — Kept secret until Tepco’s admission two months later — Says melted fuel only ‘largely’ submerged in water


    And why was nothing done? Because – they – knew what they'd never admit: that nothing can be done after the fact! Their entire program is about denial: the reality of the situation and the consequences of the situation. Problem is, such denial will neither change the reality or consequences of their stupidity…

    • moonshellblue moonshellblue

      Yes the still photos clearly show what appears to be slag. Thanks for the link. BTW I think that is the same area where we see vapors coming out of the ground probably from the corium.

    • strAtum5

      Sometime I wonder whether the visible slag is really from reactor #2. Look at the ravaged skeleton and the jungle of metal beams on the left of that scene/picture. As far as I am aware all the walls of reactor #2 are intact, at least on the upper part – if that's the case then that image cannot reassemble any of the reactor #2 side wall.

      But maybe what we saw there is a side of reactor #3 instead. Then the video is "doctored" and the roof of reactor #2 is stitched in between to appear as we were looking at rector #2 when in fact we are shown reactor #3 two times.

  • Laterlukemayb Laterlukemayb

    After the tsunami those cores in the RPV's went critical pretty quick. Pumps wasted with no way to restart them. Pipes were twisted, broken leaking profusely, so even if they did have water running through them it wouldn't have made one bit of difference.
    Those poor workers that TEPCO officials told NOT to leave their posts and are surely dead now. There was absolutely nothing that could have been done within the first few days .
    They had brought in water pump trucks but it was already to late. The reactor cores went critical the 1st day and water had drained from the SPF's and they were already reaching recriticality. This was the situation at ALL the Units.
    #4 just had less damage to the reactor cooling system so the inevitable just took longer to reach. The #3 Unit blowing it's core just sealed #4's fate, and 4 could still offer a spectacular nightmare finish. Let's hope not for the sake of Japan and the world that has received a mortal would by this event!

    • NoNukes NoNukes

      I have seen nothing to suggest that R4's SFP has not already gone bye-bye along with its friend, R3's SFP. R4 looks more and more like the pile of rubble at R3. How did it get that way? The wind? I cannot swallow the "exterior decorating" story that Tepco claimed to be doing at least after Dec. 5.

      If there is still an intact R4 SFP to be seen, I believe this would be the celebratory moment to show the close-up video, the money shot of this anniversary. If they haven't already put together such a film (either a documentary or fictional feature film), then they need to fire all of their advertising/pr teams.

  • Gotham

    NISA is not the only ones who knew about the meltdown – and melt through.

    GE provides thermal simulation software with the purchase of this reactor. Thus, the NRC as well as the Japanese are fully capable of running failure mode cases. They have built into the codes that corium can burn through concrete at the rate of 2 inches per hour. They all knew the RPV steel wall was compromised within the first few hours of loss of cooling.

    The complicit "dumbing down" of the public is rampant. The American's are as guilty of murder as the Japanese.

    "What does it profit a man if he gain the whole world but loses his soul."

  • Whoopie Whoopie

    YOU muthers knew!! Way back then!!!!

  • AGreenRoad AGreenRoad

    "In the pursuit of wrong doers, one has to step away from God" quote from the movie 'Doubts'

    Well worth watching…

  • AGreenRoad AGreenRoad

    Denial is not a river in Egypt, it is a river of molten corium running out of multiple reactors at Fukushima Daichi