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Country Discussion Topics
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deadcarp    Posted 01-02-2005 at 04:32:41       [Reply]  [No Email]
maybe i'm a skeptic but this earthquake-generated axis wobble doesn't make any sense. they're claiming the tsunami did it right? okay that killed a heap of people but let's get it down were we can see it. the tsunami was what - 100 feet tall? it didn't hit anything direct but rather washed itself out by sudbduction like any wave. what's the earth? 25,000 miles around? and the wave was say 1/60th of a mile high. okay let's take a field 25,000 feet square, let's flood half of it, and let's pitch a rock and make a wave 1/4 of an inch tall. how's that wave going to affect that whole field atall? i don't get it. ;)


Gran    Posted 01-02-2005 at 17:08:07       [Reply]  [No Email]
It is beyond comprehension to all but Mathematicians/Scientists...Think high school algebra and multiply by goobildy-gook and "greek". Get it? No of course not. Lucky for us there are people who do. : )

God Bless the traumatized survivors.


Hmm...    Posted 01-02-2005 at 06:47:21       [Reply]  [No Email]
"let's pitch a rock and make a wave 1/4 of an inch tall. how's that wave going to affect that whole field atall?"

You are missing the 'cause'...It was not the 'tsunami' that made the 'wobble', it is the underlying cause of the tsunami, which is the quake itself...Now what caused the quake?...The sudden slippage of pent up energy from the pressure of the Indian continental plate against/under the Asiatic plate...That sudden 600 mile long rupture along the interface, (the subduction of the Indian and the raising of the Asiatic) is what caused the 'wave'...Now follow me...The 'wave' not only affected that "1/4" on the surface, but was propagated INWARDS to the underlying layers that are in a molten and semi molten state...We all know that you can not 'compress' a liquid, so that wave-form internally under the rupture was broadcast upon EVERY underside surface of the rest of the mantle of the Earth...A little bulge in the right place and you have your 'burp' in the revolution of this spinning top and hence the wobble...

That's my story and I am sticking to it...

Salmoneye, Who Is Never Detered By Not Having The 'Correct' Answer And Is More Than Willing To Make One Up On The Spot

I will now read the other responses to see how insane I am... ;-)


bill b va    Posted 01-02-2005 at 07:01:48       [Reply]  [No Email]

you are not insane . you however are much better at putting things in words than i. if you read my post just before yours you will see i said the same thing but not as well . now does that make me insane also ?


Yes...    Posted 01-02-2005 at 07:13:49       [Reply]  [No Email]
We are both insane...

I just went and did some reading on the subject and I was TOTALLY WRONG...

It wasn't the Indian plate subducting..It was the Australian plate...

;-)

Salmoneye,


Here we go...    Posted 01-02-2005 at 07:22:27       [Reply]  [No Email]
Here is the best explanation I can find (so far) on this...

Salmoneye,


Alias    Posted 01-02-2005 at 06:46:16       [Reply]  [No Email]
Heyyyyyy DC, you got a good theory there with the football field-dropped rock-1/4" wave- thingy. But, now I ask you, is that a true comparison? Would it not be more on the order of breaking wind in the bathtub....gfp


BILL B VA    Posted 01-02-2005 at 06:15:20       [Reply]  [No Email]
idon't think the wave had any thing to do with the wobble . i suspect (i don't really know) the wobble was caused by the volcano blast on the outer edge of the earths surface causing earth to shift on its axis . wave was consiquince of displaced water .


geo in MI    Posted 01-02-2005 at 06:04:53       [Reply]  [No Email]
It was the 9.0 earthquake underneath the ocean that did the shakin'. The Richter scale is exponential, which means that the power unleashed by a 9.0 is ten times as destructive as an 8.0, an 8.0 is ten times more powerful than a 7.0 etc.

Subduction is the process of one rock layer(tektonic plate--Africa) diving underneath another one(Asia) causing much grinding and gnashing of the teeth. And earthquakes and volcanos.

The earth wobble probably is something that you could only measure theoretically/mathematically, but you wouldn't feel it and it wouldn't have any real effect on the overall scheme.

The tsunami is just the water reacting to the earthquake--the shock waves travel from deep ocean to shallow beach and the water has to go somewhere. A twenty to thirty foot wave with the power of a 9.0 earthquake behind it packs a powerful punch.

On a football field scale, you also have to scale down the trees, houses and people. They would be only ?? size. And to get true results, you would have to scale down the size of the water molecules....

The US had a tsunami in 1964 from the great Alaskan earthquake--another one nearly 9.0, killed some people in Oregon and California.

A great book and a good history of the same Asian/Indian region is "Krakatoa" which gives a good account of the volcanic eruption in the 1890's

Hope this helps...


Aprille    Posted 01-02-2005 at 04:46:16       [Reply]  [No Email]
Altho I completely stink in Mathmatics I must admit that u have something there!! I lived in Winthrop Mass when i was growing up..my front porch was the ocean. Now, anyone who has been along the shoreline KNOWS that u literally SIT ON THE BEACH if u live on the main road of Winthrop. In or around 1971 there was a huge storm. The waves from that storm were clocked at approximatly 25 to 30 feet high! The wall on Winthrop beach stands between 2 ft to over 20 feet tall in some places. These waves were so harsh that they broke off boulders from the Breakers wayyy out at sea..carried them into shore and literally "tossed" them over the wall and set them down in the middle of the street..in front of my house. Damage?? Wellll..we had a big frickin HOLE in the middle of the road! Were there NO Breakers or Jetties to "break" up the larger scale waves that pummeled this area? Did people not plan ahead? Was no one paying ANY attention to the animals that day?? LOTS of unanswered questions happening there! Did the earthquake exacerbate an already bad situation? hmmm..


midway    Posted 01-02-2005 at 06:58:10       [Reply]  [No Email]
hhmmmm, north shore huh? lived in Quincy (south shore) for 36 years. got a nephew that just bought in Winthrop.


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