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Posted By: I. S. The big one's geological impact - 12/28/04 09:27 AM
Most of the tsunami coverage has focused on the human toll; here's another side to the story.

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Posted By: Mike Kremer Re: The big one's geological impact - 12/29/04 01:02 AM
[QUOTE]Originally posted by I. S.:

Each and every Earthquake is slightly altering the tectonic plates boundarys that our Continents are sitting upon.
Major Earthquakes only within the last ten years are:-
Dec. 26, 2003: Southeastern Iran, Bam, magnitude 6.5; More than 41,000 killed.
May 21, 2003: Northern Algeria, magnitude 6.8; Nearly 2,300 killed.
March 25, 2002: Northern Afghanistan, magnitude 5.8; up to 1,000 killed.
Jan. 26, 2001: India, magnitude 7.9; Estimates put death toll as high as 13,000.
Sept. 21, 1999: Taiwan, magnitude 7.6; 2,400 killed.
Aug. 17, 1999: Western Turkey, magnitude 7.4; 17,000 killed.
Jan. 25, 1999: Western Colombia, magnitude 6; 1,171 killed.
May 30, 1998: Northern Afghanistan and Tajikistan, magnitude 6.9; as many as 5,000 killed.
Jan. 17, 1995: Kobe, Japan, magnitude 7.2; more than 6,000 killed.
Sept. 30, 1993: Latur, India, magnitude 6.0; as many as 10,000 killed.

And now, off the coast of Sumatra, (almost to the day of the Iranian Bam earthquake last year)
I would guesstimate that there could be as many as 95,000 dead once the figures come in.

One can only feel deep sorrow for the plight of peoples that live within 200 miles of the Earths Tectonic Faults, especially those Asian majoritys that live on the Seaboards.

The largest loss of life ocurred on July 28th 1976 in Tangshan China where 240,000 died.

Basically each Continent is sitting, (floating) on their own Plate, and at the present time
while Pacific ocean is getting smaller, due to the widening of the Atlantic ocean. There will come a time when the Americas will drift back and collide with Africa within the next 250 million years (From whence they came)
According to the "Future VR ..Continental Drift Animations" found below:-

http://www.scotese.com/newpage13.htm
Posted By: I. S. Re: The big one's geological impact - 12/29/04 04:46 PM
Our days may also be shorter by a fraction of a second as a result...

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Posted By: Mike Kremer Re: The big one's geological impact - 12/31/04 03:58 AM
[QUOTE]Originally posted by I. S.:
[QB] Our days may also be shorter by a fraction of a second as a result...


Yes, well even Scientist like to keep their name in the headlines. The microsecond speed up of the Earth is pure theory. Since there is not any method sensitive enough to detect such a transient event, or to compare with a previous measurement.
Were the Earth to compact, it would speed up but
the Earth is as compact as its going to get from
100 miles down until the center.
The Geophysycist assumed that the subduction on Boxing day, moved rock (50 miles deep) closer to the center, thus speeding up our Earth?
One could argue for exactly the opposite to happen.
A/Not only is the subducted material lighter than the material it displaced, it also caused the overiding plate to get a teeny bit higher.
Net result no change.
Also the Tsunami movement of water, is but a fraction of the overall tidal effect the Moon has, twice a day.
B/Not only is the spin of the earth slowing in time. But that it also slowing additionally. Due to Earths weight increasing by thousands of tons per year, by the addition of micrometeoric dust
C/Then again the added meteorite dust, tends to be
counteracted by our oil extraction and burning, as
well as the Moons recession from Earth, about one inch per year (I think)
Net results...no change in rotation we could ever measure.
Now if we were we hit by a 40 mile diam meteorite?
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