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Merged 8.8 quake in Sendai, Japan

I think there was talk of the rods melting. This may sound stupid, but do they melt at the top, or the bottom? i.e. how does the cooling affect this?

Also I read that there was only 5% damage to the container, what does that mean?

Could this be what you read:

"Damage to the core involved about 5% of the core's nuclear fuel, Amano said."

They're talking about reactor 3. That would make more sense since they can tell/estimate/guess? how much of the rods are above water and therefore subject to possible damage.

That quote is from a CNN article:

http://www.cnn.com/2011/WORLD/asiapcf/03/15/japan.nuclear.reactors/index.html?hpt=T1
 
Could this be what you read:

"Damage to the core involved about 5% of the core's nuclear fuel, Amano said."

They're talking about reactor 3. That would make more sense since they can tell/estimate/guess? how much of the rods are above water and therefore subject to possible damage.

That quote is from a CNN article:

http://www.cnn.com/2011/WORLD/asiapcf/03/15/japan.nuclear.reactors/index.html?hpt=T1

Cheers, and thanks to Kestrel too.

Should not the rods have 'dropped' making them less reactive, and if that were not the case, does it imply that that the fit of said rods resulting from the earthquake were/are no longer true?
 
Cheers, and thanks to Kestrel too.

Should not the rods have 'dropped' making them less reactive, and if that were not the case, does it imply that that the fit of said rods resulting from the earthquake were/are no longer true?

It's my understanding that the fuel rods are fixed and the control rods are what move in and out. Specifically up from underneath to stop the reaction, and down to start the reaction. Everything I've read said the rods in all the reactors at all the plants were automatically inserted without trouble immediately after the earthquake.
 
As someone who lives in Japan (although a fair distance away from Fukushima), my main questions are what sort of time line are we looking at now and what sort of progress (if any) have they made so far?

I think most people have been pretty calm up to now. But, in my case, it's the continuous negative trend of the nuclear crisis that has me concerned. Every morning we seem to wake up to even worse news than the day before with little idea of where this is headed or its capacity to spiral out of control. Any information on that score is appreciated.
I'm a little surprised with this comment because I've been watching NHK world - Japanese news in English here in the UK (on a freesat channel) and I've been very impressed. I'm really quite angry at how the UK media have portrayed the nuclear reactor problems. I just refuse to watch BBC, SKY, Channel 4 news anymore.

I believe a great deal of your feeling is related to the sensationalist FUD style reporting. I am quite disappointed with the style of the big news outlets, even ones that I considered good. For this crisis, the best news I got from unrelated, independent sources -- bloggers, forum entries, Wiki-submitters.
Me too. It's the speculation I can't stand and the stream of "experts" who aren't experts when you google them.

ON NHK World they actually had the designer of the reactors on and the news presenter was very respectful. Contrast that with UK news whereby I've seen "tele-prompter readers", who have zero scientific education, trying to outwit and put words into the mouths of interviewees who have significant knowledge. Even cutting them off mid sentence to push their own agenda sometimes. Despicable.
 
This video might be the most dramatic yet of an occupied vehicle being swept away. The tsunami breaches a seawall and a vehicle is right there only a short distance from the camera.
 
The melodramatic language used by CNN at the start of it's Five O Clock (Pacific Standard Time) newscast was so over the top that a second rate hack thriller writer would hesitate to use it.
If there is no catastrophe, then CNN and all 3 news channel have a lot of explaining to do...although they wont.
I am afraid I have to use the words "Great Power with no sense of reponsiblity" about the way the Television has covered this story; a sort of Spiderman motto in reverse.
 
To be fair, Beck has actually done a pretty good job of dumbing down the actual truth about the nuke problem (to a level his typical audience would understand) and not screaming "Chernobyl".

Yeah, but his "God Is Telling US By the Disaster To Keep The Ten COmmandments" statement more then wipes that out.
 
Yeah, but his "God Is Telling US By the Disaster To Keep The Ten COmmandments" statement more then wipes that out.

To be honest, I haven't seen him say that, but I could have missed it. The bit he did yesterday with the kitchen pots and M&Ms to represent the containment and the fuel rods (I kid you not!), while not completely technically accurate, did explain how safe these reactors are in terms his typical audience could understand. Credit where credit is due, especially when every other news outlet is churning up the doom and gloom.
 
As someone who lives in Japan (although a fair distance away from Fukushima), my main questions are what sort of time line are we looking at now and what sort of progress (if any) have they made so far?

I think most people have been pretty calm up to now. But, in my case, it's the continuous negative trend of the nuclear crisis that has me concerned. Every morning we seem to wake up to even worse news than the day before with little idea of where this is headed or its capacity to spiral out of control. Any information on that score is appreciated.

I obviously don't know jack about the technical side of things. But I had heard that with proper water flow probably it'd take about a week to properly cool the cores. Is your one week estimate above also based on the same proper water flow assumption? Is that the only real solution? As a layman, I imagine scenarios of filling the buildings full of earth and concrete.

I'm sure the staff are doing everything they can. But part of me wonders why they haven't sent more assistance. Has the media over hyped the risks to Tokyo or are the problems they're facing just not the kind that can be solved with more people on the scene?

Every day of stability helps. However it is difficult to predict what is going to happen since there are intangibles and the information we are all receiving is limited. Since the plants are shutdown, as long as the plant people can get cooling water to the reactor vessel and spent fuel pools...it should not get worse. Electricity and water are necessary--water with boric acid to prevent any type of criticalilty. As time passes, the decay heat of the fuel will drop and it will reduce pressure inside the reactor vessels. It is easier to get water injected and keep things cool. The difficulty in the future will be getting to the parts of the plant that are highly radioactive to decontaminate and clean up the mess. We are not out of the woods by any means.

glenn
 
To be honest, I haven't seen him say that, but I could have missed it. The bit he did yesterday with the kitchen pots and M&Ms to represent the containment and the fuel rods (I kid you not!), while not completely technically accurate, did explain how safe these reactors are in terms his typical audience could understand. Credit where credit is due, especially when every other news outlet is churning up the doom and gloom.

http://www.huffingtonpost.com/2011/03/14/glenn-beck-japan-earthquake-god_n_835573.html
 
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The melodramatic language used by CNN at the start of it's Five O Clock (Pacific Standard Time) newscast was so over the top that a second rate hack thriller writer would hesitate to use it.
If there is no catastrophe, then CNN and all 3 news channel have a lot of explaining to do...although they wont.
I am afraid I have to use the words "Great Power with no sense of reponsiblity" about the way the Television has covered this story; a sort of Spiderman motto in reverse.

Yeah, it's pretty disgusting to watch them wallow in it. Sometimes it's like they're practically having feargasms over it.
 
I'm still here. So are my coworkers.

So much is depending now on a few remaining workers at the power plant:
Last Defense at Troubled Reactors: 50 Japanese Workers

A small crew of technicians, braving radiation and fire, became the only people remaining at the Fukushima Daiichi Nuclear Power Station on Tuesday — and perhaps Japan’s last chance of preventing a broader nuclear catastrophe.

They crawl through labyrinths of equipment in utter darkness pierced only by their flashlights, listening for periodic explosions as hydrogen gas escaping from crippled reactors ignites on contact with air.

They breathe through uncomfortable respirators or carry heavy oxygen tanks on their backs. They wear white, full-body jumpsuits with snug-fitting hoods that provide scant protection from the invisible radiation sleeting through their bodies.

They are the faceless 50, the unnamed operators who stayed behind. They have volunteered, or been assigned, to pump seawater on dangerously exposed nuclear fuel, already thought to be partly melting and spewing radioactive material, to prevent full meltdowns that could throw thousands of tons of radioactive dust high into the air and imperil millions of their compatriots.

Like Spock in The Wrath of Khan.
 
I had to turn off Anderson Cooper when one of his "experts" begun talking about how the food chain in Japan might be doomed. I have never been as disgusted with the Broadcast News Media As I am now. The situation is bad enough without cheap sensationalism.
I would got to the "alternative media: except they will be even worse.
 
I'm still here. So are my coworkers.

So much is depending now on a few remaining workers at the power plant:
Last Defense at Troubled Reactors: 50 Japanese Workers

They must be very brave. I think having 50 people risk their lives to do this work shows how very critical the situation is. I know the media hyperbolizes the danger, and skeptics wave their hands and say it's not so bad...but the truth lies somewhere in between. My heart goes out to all the victims of this still-unfolding multi-faceted disaster.
 
Just saw this article on Rikuzen-Takata, which was devastated by the tsunami. Apparently the town evacuation plan prepared for a 3-4 metre tsunami. It was hit by a 15 metre wave.

The evacuation shelters were wiped out :(
 
Just saw this article on Rikuzen-Takata, which was devastated by the tsunami. Apparently the town evacuation plan prepared for a 3-4 metre tsunami. It was hit by a 15 metre wave.

The evacuation shelters were wiped out :(

Wow. Tens of thousands dead, and the world is worrying about something that won't kill more than a very small number of people at worst.
 

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