Reports: “Something may have happened at Fukushima II Nuclear Power Plant” after M7.3 quake — Tepco “did not know cause of pressure rise”

Published: December 7th, 2012 at 5:20 pm ET


Title: Current situation of Fukushima Daiichi and Daini nuclear power station
Source: Tepco
Date: Dec 7, 2012

Current status of the Fukushima Daiichi NPS and Fukushima Daini NPS after the earthquake (M7.3) at the offshore of Sanriku at 5:18 pm on December 7, 2012.


[As for the Fukushima Daini Nuclear Power Station]

After the earthquake occurred at 5:18 pm on December 7, 2012, we have conducted checkups at the Fukushima Daini Nuclear Power Station, and have found there was no problem.

Since we had found positive pressure in the reactor building of Unit 1, we have started Stand by Gas Treatment System* (the pressure was 0.05 kPa at that time of the start), and confirmed negative pressure in the reactor building. The negative pressure has been kept currently. We will conduct inspections for the cause of this matter.

The fluctuation of the monitoring post readings is being maintained within the range of normal fluctuation before and after the earthquake and currently no radiation impact to the outside of the power station has been reported due to the earthquake.

Source: Jiji Tsushin
Translation: EXSKF
Date: Dec 7, 2012

[…] in Fukushima II (Daini) Nuke Plant, the pressure inside the Reactor 1 building rose a little. At 5:20PM, workers lowered the pressure by manually operating [the system that] pumps out the air.

TEPCO’s manager Masayuki Ono explained “It’s not very serious”, even though he acknowledged the company did not know the cause of the pressure rise. According to TEPCO, there is no leak of radioactive materials in the environment.

EXSKF: “It looks something may have happened at Fukushima II Nuclear Power Plant. According to TEPCO, there was a small rise in pressure in the reactor building, which is to be kept at a negative pressure to prevent radioactive contamination from spreading into the environment.”

See also: [intlink id=”shukan-asahi-fukushima-daini-also-had-major-damage-after-311-submerged-under-4-meters-of-water” type=”post”]{{empty}}[/intlink]

Published: December 7th, 2012 at 5:20 pm ET


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32 comments to Reports: “Something may have happened at Fukushima II Nuclear Power Plant” after M7.3 quake — Tepco “did not know cause of pressure rise”

  • The big thing is whether the 7.3 is a precursor to an 8 or 9.

    Got your shelter in place kit already made, I do.

    Here is the checklist I put together. Great emergency kit. Make it NOW!

    • Good advise stock.

      Especially after watching this latest nuckelchen video.

      I agree. "Something may have happened…?"

      reactor 4 @ fukushima 2012-12-07

      I'm speculating. This is NOT good.

      [re-post from web cam forum]

      • I Believe this is may be a major event: ALERT.

        • Albeit, things look relatively mellow on the live cams right now,

          but there may have been emissions over the night, or perhaps the live cam isn't so live…

        • PavewayIII PavewayIII

          If it is majia, it will be little different from the last time.

          * TEPCO and NIST will say nothing (unless the flames are visible fifty miles away)

          * MEXT and SPEEDI radiation monitors will show nothing.

          * The CBTO measurements will be shared with 'designated scientific institutions in its member states' but kept secret from other scientists or the public.

          * The few billion in U.S. nuclear weapons systems (and their crews) bobbing around the Pacific will claim some insignificant readings.

          * RADnet will show nothing (if they're not taken down for 'maintenance').

          * The state EPAs will not detect anything much outside the mysteriously shifting lower detection limit. I-131 won't be detected in their air filters because that's not how anyone but grade-school science class would sample it.

          * The President will assure everyone that there's nothing to worry about.

          * The NRC will have Google, Bing and Yahoo secretly manage related search results.

          * Mark Monitor will aggressively inspect network traffic from people doing too much internet searching related to radiation and take a look at their hard drives for other terroristic (or illegally downloaded music) activity.

          * DHS will be notified. Doors will be kicked in. Computer equipment will be seized. The criminals will be waterboarded until confessions are obtained, then they'll be returned to their parents.

          * ABC will have an exciting new cast of judges on the new season of "Dancing…

      • moonshellblue moonshellblue

        It looks as if someone put something over the lens either trying to cover up or for some other reason. Not Nucklechen I know he wouldn't do that it's just odd to my eyes and perhaps it's just me. I do see the flashes and wonder if Tepco was trying to hide something, does anyone else think this looks a tad odd.

        • PavewayIII PavewayIII

          That's the worst attempt at a wipe I've ever seen. Looks like how we would manually burn a sasquatch into our super-8 movies in High School. Is TEPCO outsourcing their video editing? It must be the same clowns that Photoshop for them.

        • amberlight amberlight

          "Odd" is an understatement! I downloaded the clip so I could scrub through it and compare frames. (I made a copy and put them side by side so I could compare the beginning and the end of the clipframe by frame.)

          The last few seconds may seem like the first few (from when the "smoke" appears) in reverse, but it is different. The elements on the left of the scene at the beginning remain stationary, while the rest of the scene, obscured partially by the smoke, tilts slightly & gradually as the smoke advances and retreats. There might have been a small cloud of smoke near the lens, causing the image to be refracted, but that doesn't explain how that cloud of stuff rolled smoothly in and then out.

          The flashes of light move sequentially from right to left, but too slow for an airplane, unless waaay in the distance. Helicopter?

          Damn, I wish Ineptco would invest in a decent camera!

        • Dogleg Dogleg

          Saw it the same Moon

      • Thanks, having the kit (2 large boxes) really give me a feeling of relaxation when the SHTF

  • dosdos dosdos

    I'm waiting on the report from Daiichi.

    • Yes, we know what the nuclear industry does with reports:

      APNewsBreak: Dispute over records at nuclear plant
      By AP | December 08, 2012–apnewsbreak-dispute-over-records-at-nuclear-plant

      More interestingly, this article reminds us that you don't need a big earthquake to damage a nuke plant – just vibration will do it.

      "The plant was shut in January after a leak in a generator tube released traces of radiation."
      "After a three-month investigation, the NRC announced earlier this year that a botched computer analysis resulted in design flaws that caused excessive vibration and resulted in heavy wear in many tubes.
      Edison's proposal calls for operating Unit 2 at up to 70 percent power, which engineers believe will stop the vibration.

      It would run for five months, then be shut down for inspections. The future of its twin reactor, the heavily damaged Unit 3, is unclear.
      Anti-nuclear activists have argued for months that restarting the plant, located between San Diego and Los Angeles, would invite catastrophe. About 7.4 million Californians live within 50 miles of San Onofre's twin domes."

  • PurpleRain PurpleRain

    It definitely looks odd and/or wrong when you get to the end. It almost like they rolled the film in reverse, but that's not it either. I thought I could see a couple of fires, but I'm not sure if it was the camera-color or not. It looked like a fire on the bottom left of the stack-tower-thingy and then like flames maybe on the right in the distance, but maybe that's a trick of my eyes too.

  • wideawake wideawake

    32 quakes in Japan in the last 7 days and 25 of those in the last 24hrs…I'd say somethings up! (sigh)

    • timemachine2020 timemachine2020

      I wouldn't be surprised if the melted corium has gone down into the earth far enough now to cause the ground under all these plants to be unstable also.

      • richard richard

        i've been wondering the same thing for a long time. the ongoing tremors that seem to be centred close to fuku-d.

        althouhg, i tend to wonder with this one, if it's an after shock from the original of 18 months ago. Need to check it's centre really. If it's a long way away, it's less likely to be coriums. But the localized regular ones.. hmmmm.

  • SophieQ

    Does anybody know what sort of plant can be seen on the latest Ggl Earth map of Japan, just South of Daiini? The location is here: 37º 14'00.00N 141º 00'52.00E

    • razzz razzz

      Copy and pasting your coordinates into Google Earth search bar takes you to the location then clicking on the little tiny icon just below the read marker says this…

      "Hirono Power Station is an oil-fired power station located in Hirono, Fukushima, Japan. The plant has an installed capacity of 3800 MW. Power is generated by three 600 MW units, and two 1000 MW units. Units 1 to 4 run on fuel oil and crude oil, whereas unit 5 (600 MW) runs on coal. – All text is available under the terms of the Creative Commons Attribution-ShareAlike License‎ – Wikipedia"

  • razzz razzz

    SophieQ: Correct 'read' to red.

  • Shammalammadingdong

    As I so to bed thinking "Something may have happened"….

    Are TEPCO employees sleeping as soundly?

  • WindorSolarPlease

    Are there any uppers making trips…are they seen outside?

    Can stick nuclear plants withstand a 7.3 earth quake?

    Don't worry..Be happy…All is ok…Sarc…

  • AGreenRoad AGreenRoad

    93 Long life Radiation Contaminants, A Problem For Billions Of Years; via A Green Road

    Alpha Radiation Dangers; Polonium, Radon, Radium, Plutonium, Uranium; via A Green Road

  • timemachine2020 timemachine2020

    Lots of flashes going on right now on tepco webcam , definately not good!

  • timemachine2020 timemachine2020

    All fukushima webcams done – blizzard covering lenses 🙁