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Merged 8.8 quake in Sendai, Japan

Puppycow said:
The tsunami waves themselves aren't so tall like in the Hollywood disaster movies. It's more like the ocean itself just pours onto the land.
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It's a lot like when you get in a bathtub that's too full. It sloshes over. Rising tides are the same. Thing is with a tsunami, it's a single pulse "slosh", so as it hits shallow water it piles up into a big wave. If it comes ashore in reasonably deep water- as most ports and harbours have- it will just pour over, exactly as you say.
 
Travis said:
CNN is reporting the explosion was definitely from the pumping system and that the containment and reactor vessel are still intact.

By the way it seems that several diesel generators failed at this and the sister nuclear plant down the road. I'm wondering if they got sold lemons and someone failed to do a quality control check on them.
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A pumping system doesn't really have anything in it to explode. There just isn't enough information yet to know what happened.

As far as the diesels...they are very reliable in general and periodically tested to ensure they will start. I would be that seawater go into their electrical system and possibly into their diesel fuel...speculation, but water and electricity are typically a problem.

glenn
 
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Hindmost said:
A steam type explosion in a reactor will occur if the plant is running at high power and there is something like a loss of coolant flow and the reactor doesn't trip right away...the reactor would heat the water very fast and explode. Of course, when they blow all their water out, the reactor shuts itself down and can't be cooled anymore. This is why we have emergency systems available to flood the core--wjhich appear to be unavailable in this plant right now. The steam explosion type thing--but not exactly the same-- happened at SL-1 in Idaho a long time ago--that reactor set the high jump record. Commercial reactors really can't have the same type of problem as they won't go prompt critcal and hit several thousand percent power...this happened at Chernobyl due to its terrible design.

A commercial plant can have a steam line break which is very nasty as it releases a bunch of energy quickly...but has also never occured...thank the ASME for that.

http://en.wikipedia.org/wiki/SL-1

glenn
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I sort of thought that was the case with steam explosions, but thanks for confirming.

How hot is the core during normal operation? How hot does it need to get to start a meltdown?
 
manofthesea said:
My wife hates Japanese. That's besides the point.
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Somehow I doubt that. Sounds like your views of Japan are colored by those of your wife and in-laws.

They don't have a social system that is comparable to the west. Period. Never have and never will.
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Sorry, but you are wrong.

If you love it so much why don't you buy land there? Wait, you can't.
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Huh? Why can't she?
 
manofthesea said:
My wife hates Japanese. That's besides the point.

They don't have a social system that is comparable to the west. Period. Never have and never will.

If you love it so much why don't you buy land there? Wait, you can't.
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Why is buying land an objective measure of how much one likes a country?

This venting of your personal feelings for the Japanese is getting too much off topic. The Japanese culture, as far as I can see, is just as 'Westernized' as Canada, NZ, Oz and the UK. We all have some ethnic differences, but seriously, I felt just at home culturally in Japan as I felt in the UK and in Canada and New Zealand and in Australia. The furniture and the food was different. The people were the same.
 
CNN is saying a core meltdown may be underway.

The Japanese ambassador is denying it.
 
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Skeptic Ginger said:
Well here's part of the problem, you have no clue how hard it is to get help in these disasters. Have you not noticed the same problems you describe occurred in every similar disaster to date from Katrina to Haiti to the floods in Pakistan? You might as well say no peoples care about their individuals.

.
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The help we sent to New Orleans consisted of Nat'l Guard members with automatic weapons. The Navy swooped in, literally, to haul people out. With nowhere except overpasses to leave survivors, they then got chastised for allowing citizens of New Orleans into Jefferson Parish.

And don't forget the FEMA trailers. I had a sister in law there attending an EMS convention. They had to flee to protect themselves. They had to buy food and water from the gangmembers outside the hotel lobby. Police got into trouble for 'offering' them a 'free' caddy.

You want truth? Turn on CNN, keep your eyes open . See the hospital with SOS written in English?
 
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CNN is reporting that a meltdown "may be underway". Their source is "an official" with Japan's agency that deals with nuclear safety.
 
Rolfe said:
Someone thinks Japan "started WW2". Thus negating one of the best John Cleese jokes of all time.















"Yes you did you invaded Poland," for the slow of uptake.
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My favorite was about those "krauts" "nuking" Pearl Harbor.
godzilla-facepalm-godzilla-facepalm-face-palm-epic-fail-demotivational-poster-1245384435.jpg
 
The_Fire said:
From what I understand, you'll also have to factor in waterdepth and wether or not its at sea or over land as well as topography.
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Wasn't there some group of islands in the Indian Ocean that are pretty much tsunami-safe, as they're basically mesas? And wasn't Phuket Island hit by a two-pronged tsunami? :confused:

And regarding those gloating over this disaster because of Pearl Harbor: If you asked the american military high command, it was im-po-ssi-ble for the japanese to construct such a plane as the Zero, much less fly it as their eyes didn't work right at high altitudes. It didn't matter if american fighter pilots who fought the japanese in China could testify about the Zero's capabilites and tell about how to counter them. All this was hand-waved away...

However, really tragic disaster. Saw the debris-filled deluge yesterday on television. Has yet still to fathom the magnitude of this. My thoughts to the people in Japan. :(
 
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manofthesea said:
The help we sent to New Orleans consisted of Nat'l Guard members with automatic weapons. The Navy swooped in, literally, to haul people out. With nowhere except overpasses to leave survivors, they then got chastised for allowing citizens of New Orleans into Jefferson Parish.

And don't forget the FEMA trailers. I had a sister in law there attending an EMS convention. They had to flee to protect themselves. They had to buy food and water from the gangmembers outside the hotel lobby. Police got into trouble for 'offering' them a 'free' caddy.

You want truth? Turn on CNN, keep your eyes open . See the hospital with SOS written in English?
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2wu4me. You got that right.
 
It seems wiki is following this...it has some good information.

http://en.wikipedia.org/wiki/Fukushima_I_Nuclear_Power_Plant

Based on the wiki stuff... it seems possible that a hydrogen explosion may have occured...but they are saying containment is intact. These are incongruous with the video. If the hydrogen exploded, then containment would have been breached to cause what was shown on the video. If the containment has/had a "blowout" disk, it could have gone with a hydrogen explosion and turned some concrete into rubble--which would be consistent with the video...a big cloud of concrete dust. But the radiation release would be much higher.
 
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Originally Posted by The Central Scrutinizer
Glad you weighed in with that. I had read elsewhere on the net some self-styled "experts" (i.e. "idiots") saying that it looked like a steam explosion to them.

It is possible, but in this case, I'm certain it was people who don't know what they are talking about flapping their lips.
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That never happened.
 
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