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Thread is about the various issues surrounding Japan in the aftermath of the recent earthquake. Don't bring the shit side of the internet to the thread, and post with the realization that this thread is very important, and very real, to your fellow members.
Do not post speculative and unconfirmed news you saw on TV or anywhere else. Generally the more dramatic it sounds the less likely it's true. |
Osaka27173 Posts
Just for your own interest, this is the message (minus links) up on facebook for me right now:
Japan Earthquake Information - Updated Mar 15, 4:05PM
Scheduled Blackout
There may be scheduled blackout in Tokyo, Tochigi, Ibaraki, Gunma, Chiba, Kanagawa, Saitama, Yamanashi, and Shizuoka today.
Areas will be divided into 5 groups and each group may experience about 3 hours of power outage.
Please refer to the Yahoo! JAPAN Emergency Information (English) - link to English list of groups to find out which group you are in and what time the power outage will occur in your group. The list has been updated in the last 24 hours. Please check the list for the latest groupings.
The Facebook website will not be affected by this blackout.
Train Operation Information
There will be limited train operation today. Please refer to below links for the latest information.
JR | Metro | Toei | Tokyu | Odakyu | Keio | Tobu | Keikyu | Keisei | Seibu
Please refrain from over-stocking supplies
Food and supplies are selling out from the stores in the Tokyo Metropolitan area, however this may cause in running short of supplies for the worst stricken areas. Japanese government has announced that there are enough supplies in stock. Please act calmly with patience.
About this box
Earthquake Information is currently being displayed in Japanese for those users using Facebook in Japanese, and in Korean for those users using in Korean.
Not toggle able.
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A meltdown is literally what the word implies, a reactor melts down. After that it's remains fall into a containment unit and it proceeds to be mostly harmless. If it could go through the containment unit or like Tsjernobyl has no containment unit then shit could hit the fence. Even then the make-up of the facility can determine wether the result is harmless, hazardous or explosive.
The Japanese facility has a containment unit. The only purpose this thing has it to contain the reactor after a meltdown, if it could not do this it would be a ridiculous thing to have, it has been designed with only 1 purpose in mind so ofcourse it will do that.
There is no risk of explosions, there will not be a deadly radiation cloud that proceeds to turn half the people into ghouls and the other half into super-mutants.
This facility cannot explode in the same way your bike can't explode if you try to put the chain back on, it just doesn't. Worst case scenario is radiation polution in about 1.5 miles, that is as bad as it is going to get.
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On March 15 2011 17:22 Caphe wrote:
Ok, I am officially worry now after being calm for a long time. My GF is working in Tokyo, rightnow, she is asking me if she needs to leave Japan because there is a chance of Nuclear "problem". I need some expert advice here.
What is the chance of Japan have serious problem with their nuclear reator(I avoid using meltdown here) and if such occur, will it have much effect on people in Tokyo?
Ask her to leave imo. I don't know how important being there is for her, but if it's not life changing I'd really not want to risk her dying there. Safety is more important than a few dollars and this is one if the biggest disasters in years.
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Russian Federation154 Posts
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Just noticed the title changed to 'crisis in japan'. is it time to panic?
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On March 15 2011 18:03 SilverLeagueElite wrote:
Just noticed the title changed to 'crisis in japan'. is it time to panic?
quoting manifesto about why he changed it....
On March 15 2011 17:53 Manifesto7 wrote:
Renamed thread to be broader in scope.
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In Tokyo, the radiation level exceeds the norm by 40 times OMG
Which is still well within safety levels and many times less than what some hospital workers are exposed to regularly. It is phrased to hype and exaggerate danger not to give a rational description that people can make decisions from.
There are more important immediate problems like shelter, food, water and medical attention for victims of the crisis, the radiation is basically a non-issue in the immediate future unless you live like a few miles from the plant.
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This kinda just incites fear. >_< if it was 40x safe limit then we can panic
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Russian Federation1894 Posts
9:06
DJ: Japan Nuclear Agency: Two 8m2 Holes In No 4 Reactor's Outer Building
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Osaka27173 Posts
This post receives a warning because
A) it is bold
B) it is fear mongering
C) the source isn't english
D) doesn't explain what the link will be
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Osaka27173 Posts
On March 15 2011 18:13 Rus_Brain wrote:
9:06
DJ: Japan Nuclear Agency: Two 8m2 Holes In No 4 Reactor's Outer Building
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Yeah, but 1 and 3 have basically no buildings at all left. Again, post with context please.
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On March 15 2011 18:01 zalz wrote:
A meltdown is literally what the word implies, a reactor melts down. After that it's remains fall into a containment unit and it proceeds to be mostly harmless. If it could go through the containment unit or like Tsjernobyl has no containment unit then shit could hit the fence. Even then the make-up of the facility can determine wether the result is harmless, hazardous or explosive.
The Japanese facility has a containment unit. The only purpose this thing has it to contain the reactor after a meltdown, if it could not do this it would be a ridiculous thing to have, it has been designed with only 1 purpose in mind so ofcourse it will do that.
There is no risk of explosions, there will not be a deadly radiation cloud that proceeds to turn half the people into ghouls and the other half into super-mutants.
This facility cannot explode in the same way your bike can't explode if you try to put the chain back on, it just doesn't. Worst case scenario is radiation polution in about 1.5 miles, that is as bad as it is going to get.
zalz, you seem to know about this stuff. I have a followup question about the meltdown. If a reactor can not be cooled sufficiently and the meltdwon starts, isn't there a possibility, that the cooling water (at the moment sea-water) will react with the super hot control-rods and this will produce hydrogen (ionide + h2o = h2 ionideoxide)? This hydrogen with the combination of oxygen could then explode inside the containment and possibly damage the whole thing, making it possible for certain (little bigger) amounts of radiation to escape? Is the containmenet strong enough to resist an inside hydrogen explosion?
Thanks in advance for correcting and clearing things up!
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That article seems to be sensationalist since it doesn't put down the actual amount of radiation hitting Tokyo. [s]Watching NHK they claimed it was 0.89 μSv, but I must have tuned in after they mentioned the rate so I'm guessing it's 0.89 μSv/hr. So the dose currently is:
21.36 μSv/day
2.14E-3 Sv/day
To get a dose of 2 sV which seems to have very little effect according to the table on radiation poisoning from wikipedia, it would take a Tokyo dosage 2.5 years. The table seems to be an immediate onset of 2 Sv instead of a drawn out affair of two years, so it seems the article is VERY sensationalist. Unless I did my conversions wrong the current rate seems relatively harmless.
I did bump into an article stating that the radiation would have to increase more than 100 fold of Tokyo's usual rate to have major ramifications.
http://greenworldinvestor.com/2011/03/15/nuclear-radiation-levels-and-effect-on-human-health-as-sieverts-increase-in-japan-what-you-need-to-know/
EDIT: Whoops I seem to be behind the times, looks like the Russian article was already called out.
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Russian Federation1894 Posts
9:16
DJ: Central Tokyo Radiation Level Falls Sharply From Earlier High Tuesday
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Glad it's better! <3
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France24 (French TV): Two 8-meters holes following an explosion in reactor no2. They say it's a big deal because the "condensation pool" below the reactor has been damaged. Dunno if the information is legit.
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Russian Federation154 Posts
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![[image loading]](http://energy.cr.usgs.gov/radon/usagamma.gif)
1 uR / hr = 0.01 uSv / hr
2-9 uR = 0.02 - 0.09 uSv /hr
I watched it drop from 0.22 to 0.21 to 0.20 then jump to 0.26, time to go back to bed.
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That was a disaster, what we can do as for now is just pray for those survived.
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Gamma rays are one of the lowest sources of natural background radiation.
According to wikipedia, the average natural radiation exposure is ~2mSv/year, so 0.22 uSv/hr
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EPT
