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The Science Behind Japan's Incredible "Liquefaction" Videos (first reported here on FR)
The Blaze ^ | April 14, 2011 | Jonathon M. Seidl

Posted on 04/14/2011 12:16:48 PM PDT by DTogo

The videos started popping up as soon as the earthquake and tsunami hit Japan last month. They show the ground beneath japan seemingly coming alive, moving and swelling like ocean waves. Water also seems to appear out of nowhere. One video in particular caught the eye of Glenn Beck on radio this morning. It’s called “liquefaction.” But how does it happen? We have the answers for you....

(Excerpt) Read more at theblaze.com ...


TOPICS: Extended News; Japan; News/Current Events
KEYWORDS: japan; liquefaction
First reported here on FreeRepublic, March 18, 2011:

The unreported earthquake story in Japan: liquefaction

1 posted on 04/14/2011 12:16:52 PM PDT by DTogo
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To: maikeru; Dr. Marten; Eric in the Ozarks; Al Gator; snowsislander; sushiman; AmericanInTokyo; ...
Liquefaction stories from the Urayasu area (Chiba prefecture, east of Tokyo) are finally being reported by the US media.

日本 ピング  (kono risuto ni hairitai ka detai wo shirasete kudasai : let me know if you want on or off this list)

2 posted on 04/14/2011 12:23:20 PM PDT by DTogo (High time to bring back the Sons of Liberty !!)
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To: DTogo

The is why FEMA is scared to death of a New Madrid quake.


3 posted on 04/14/2011 12:24:37 PM PDT by Drill Thrawl (I can haz CW2 now?)
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To: DTogo

Am I understanding correctly, that the soil itself becomes a liquid??

The article also mentions that the town of Uruyasu was built on landfill. This is true for part of San Francisco as well.

Southern California coastal area is on a shelf. Terra firma is not so firm after all.


4 posted on 04/14/2011 12:25:47 PM PDT by La Enchiladita (Remember, Reflect, Renew: 2011, 10 years since 9/11. Never Forget.)
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To: All

very interesting thanks


5 posted on 04/14/2011 12:26:19 PM PDT by Maverick68
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To: La Enchiladita

Pretty much. Here’s the best video I’ve seen that shows liquification effects.

http://youtu.be/tvYKcCS_J7Y


6 posted on 04/14/2011 12:32:33 PM PDT by krobara18 (I fully admit I may not have all of the details and could therefore be wrong on all counts)
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To: Drill Thrawl

Under this Regime, think of all the Red State voters that would “go away.”


7 posted on 04/14/2011 12:34:22 PM PDT by DTogo (High time to bring back the Sons of Liberty !!)
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To: krobara18

Excellent demonstration!


8 posted on 04/14/2011 12:36:55 PM PDT by DTogo (High time to bring back the Sons of Liberty !!)
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To: DTogo

This is best received as an example of thixotropy


9 posted on 04/14/2011 12:41:21 PM PDT by muir_redwoods (Obama. Chauncey Gardiner without the homburg.)
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To: La Enchiladita
When you go to the beach and walk on the sand and your footprints fill with water -- that's soil liquefaction.

You have compressed the sand and expelled the water.

This phenomena caused a great deal -- if not most -- of the property damage in the Alaska Quake of 1964. I don't know about the rest of the country, but in California, engineers must test for soil liquefaction potential in certain sites before construction. It's the soil composition and water retention properties that create the condition. Rocks don't liquefy.

10 posted on 04/14/2011 12:42:49 PM PDT by GVnana
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To: DTogo

Plenty of interesting videos there.

Thx.


11 posted on 04/14/2011 1:00:57 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: La Enchiladita
This usually occurs in saturated granular material: sandy soil with a high water table, for instance. When the soil is at rest, the grains in the soil maintain contact with each other and will support objects on the surface.

When shaken, the grains become separated by the pore fluid (water, most commonly) which was in the spaces between the grains, and as such, there is almost no resistance to objects sinking into the ground because the grains in the soil are not supporting each other.

Areas supported by bedrock are not the ones at risk, but river terraces, flood plains, and filled in areas next to bays can be, depending on the soil/sediment types between the surface and bedrock.

12 posted on 04/14/2011 1:03:05 PM PDT by Smokin' Joe (How often God must weep at humans' folly. Stand fast. God knows what He is doing.)
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To: DTogo

most of downtown Tokyo, is built on reclaimed land....some of the most expensive real estate in the world, built on a swamp...

I suspect, that if the after shocks continue, that Nuclear plant could disappear into the ocean, and drop 12000 feet to the bottom of the sea....I lived in Tokyo, for 10 years...


13 posted on 04/14/2011 1:07:10 PM PDT by B212
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To: krobara18

That’s wild!!!


14 posted on 04/14/2011 1:30:48 PM PDT by Eagle of Liberty ("Let me be clear.............")
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To: B212
Yes, most land surrounding Tokyo Bay is reclaimed; either built on a swamp by the Tokugawa shogunate (lower Tokyo) or more recently expanded land fill out into the bay.

The Fukushima Daiichi nuclear plant appears to be built on real (non re-claimed) coastal land; less liquefaction but obviously at greater risk for a tsunami as recently demonstrated.

15 posted on 04/14/2011 1:54:07 PM PDT by DTogo (High time to bring back the Sons of Liberty !!)
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To: B212
that Nuclear plant could disappear into the ocean, and drop 12000 feet to the bottom of the sea.

"And we are pretty sure that this is where the giant glowing fireball that landed on the school playground came from. Revenge is at hand."


16 posted on 04/14/2011 2:23:04 PM PDT by UCANSEE2
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To: Smokin' Joe

Is quicksand similar to that? What about the phenomenon of buried rocks and tires working their way to the surface?


17 posted on 04/14/2011 5:03:31 PM PDT by Mind-numbed Robot (Not all that needs to be done needs to be done by the government!)
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To: Mind-numbed Robot
Yes, somewhat, only quicksand is usually maintained in a state of partial fluid support by a spring or water flow. Thrashing about only makes the lack of grain contact worse--leading to even less load bearing capability of the material.

It is entirely possible that larger objects would float back to the surface if they were less dense than the sand/water slurry they sank in. If a tire is set in upright or a plank on end, it will sink, but given time they will re-orient and 'float' to the surface--the process impeded by the need for the grains of sand to move around the tire, so it would be considerably slower than the same behaviour in water. It is possible that wood, for instance could waterlog, and either that or other substances decay, losing that bouyancy which would cause them to come up.

Oddly enough, the phenomenon was part of the plot in the movie Haleluia Trail (Lee Marvin, et al). The whiskey barrels came floating up in the end...

18 posted on 04/14/2011 9:20:17 PM PDT by Smokin' Joe (How often God must weep at humans' folly. Stand fast. God knows what He is doing.)
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To: Smokin' Joe

Thanks, Joe.

I think there is a lot more to this phenomenon than we pay attention to.


19 posted on 04/14/2011 10:33:48 PM PDT by Mind-numbed Robot (Not all that needs to be done needs to be done by the government!)
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To: La Enchiladita
I'm a bit late to this thread, but FYI, the state has these areas mapped. Here's one of Long Beach. Can't help but notice that most of the port, and the refineries are right on top of the zone....
20 posted on 04/14/2011 10:34:31 PM PDT by absalom01 (You should do your duty in all things. You can never do more, you should never wish to do less.)
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