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Author Topic:   Earthquake Effects on Earth...
angel_of_hope
Knowflake

Posts: 266
From: Palmer, AK 99645
Registered: Jul 2004

posted January 13, 2005 12:51 PM     Click Here to See the Profile for angel_of_hope     Edit/Delete Message
I had heard this on our local news channels last night and went to search NASA this morning regarding this claim .... thought you all may want to view it all well incase it was missed my anyone ... im posting in free-for-all as well ...
http://www.nasa.gov/home/hqnews/2005/jan/HQ_05011_earthquake.html

ang-

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Sheaa Olein
Moderator

Posts: 2073
From: A division of the United Kingdom, the southern part of the island of Great Britain. Originally settled by Celtic peoples, it was subsequently conqu...
Registered: Jul 2004

posted January 25, 2005 08:09 AM     Click Here to See the Profile for Sheaa Olein     Edit/Delete Message
quote:
NASA scientists using data from the Indonesian earthquake calculated it affected Earth's rotation, decreased the length of day, slightly changed the planet's shape, and shifted the North Pole by centimeters. The earthquake that created the huge tsunami also changed the Earth's rotation.

Thanks angel

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~* "I believe in magic" *~ KF

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tracysalome
Knowflake

Posts: 245
From: minneapolis minnesota USA
Registered: Jan 2005

posted February 09, 2005 04:19 PM     Click Here to See the Profile for tracysalome     Edit/Delete Message
Thanks so much for posting that link. I had been wondering about just that since this has happened.

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Randall
Webmaster

Posts: 20644
From: Columbus, GA USA
Registered: Nov 2000

posted February 10, 2005 10:06 AM     Click Here to See the Profile for Randall     Edit/Delete Message
Thanks for posting this.

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"Never mentally imagine for another that which you would not want to experience for yourself, since the mental image you send out inevitably comes back to you." Rebecca Clark

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Eleanore
Moderator

Posts: 926
From: North Carolina
Registered: Aug 2003

posted February 10, 2005 10:26 AM     Click Here to See the Profile for Eleanore     Edit/Delete Message
"NASA Details Earthquake Effects on the Earth

NASA scientists using data from the Indonesian earthquake calculated it affected Earth's rotation, decreased the length of day, slightly changed the planet's shape, and shifted the North Pole by centimeters. The earthquake that created the huge tsunami also changed the Earth's rotation.

Dr. Benjamin Fong Chao, of NASA's Goddard Space Flight Center, Greenbelt, Md. and Dr. Richard Gross of NASA's Jet Propulsion Laboratory, Pasadena, Calif. said all earthquakes have some affect on Earth's rotation. It's just they are usually barely noticeable.

"Any worldly event that involves the movement of mass affects the Earth's rotation, from seasonal weather down to driving a car," Chao said.

Chao and Gross have been routinely calculating earthquakes' effects in changing the Earth's rotation in both length-of-day as well as changes in Earth's gravitational field. They also study changes in polar motion that is shifting the North Pole. The "mean North pole" was shifted by about 2.5 centimeters (1 inch) in the direction of 145º East Longitude. This shift east is continuing a long-term seismic trend identified in previous studies.

They also found the earthquake decreased the length of day by 2.68 microseconds. Physically this is like a spinning skater drawing arms closer to the body resulting in a faster spin. The quake also affected the Earth's shape. They found Earth's oblateness (flattening on the top and bulging at the equator) decreased by a small amount. It decreased about one part in 10 billion, continuing the trend of earthquakes making Earth less oblate.

To make a comparison about the mass that was shifted as a result of the earthquake, and how it affected the Earth, Chao compares it to the great Three-Gorge reservoir of China. If filled the gorge would hold 40 cubic kilometers (10 trillion gallons) of water. That shift of mass would increase the length of day by only 0.06 microseconds and make the Earth only very slightly more round in the middle and flat on the top. It would shift the pole position by about two centimeters (0.8 inch).

The researchers concluded the Sumatra earthquake caused a length of day (LOD) change too small to detect, but it can be calculated. It also caused an oblateness change barely detectable, and a pole shift large enough to be possibly identified. They hope to detect the LOD signal and pole shift when Earth rotation data from ground based and space-borne position sensors are reviewed.

The researchers used data from the Harvard University Centroid Moment Tensor database that catalogs large earthquakes. The data is calculated in a set of formulas, and the results are reported and updated on a NASA Web site.

The massive earthquake off the west coast of Indonesia on December 26, 2004, registered a magnitude of nine on the new "moment" scale (modified Richter scale) that indicates the size of earthquakes. It was the fourth largest earthquake in one hundred years and largest since the 1964 Prince William Sound, Alaska earthquake.

The devastating mega thrust earthquake occurred as a result of the India and Burma plates coming together. It was caused by the release of stresses that developed as the India plate slid beneath the overriding Burma plate. The fault dislocation, or earthquake, consisted of a downward sliding of one plate relative to the overlying plate. The net effect was a slightly more compact Earth. The India plate began its descent into the mantle at the Sunda trench that lies west of the earthquake's epicenter. For information and images on the Web, visit:http://www.nasa.gov/vision/earth/lookingatearth/indonesia_quake.html

For the details on the Sumatra, Indonesia Earthquake, visit the USGS Internet site:

http://neic.usgs.gov/neis/bulletin/neic_slav_ts.html


For information about NASA and agency programs Web, visit:

http://www.nasa.gov

- end - "


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There's the article from the link. Sorry if it seems like a silly thing to do but sometimes people just overlook a link. This was a very interesting article. Thanks.


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"You must be the change you wish to see in the world." - Ghandi

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Nephthys
Moderator

Posts: 1658
From: California
Registered: Oct 2001

posted February 10, 2005 05:36 PM     Click Here to See the Profile for Nephthys     Edit/Delete Message
Someone brought this up in my Biology class yesterday. My Biology teacher said it's not true. I have to believe it's possible. My Biology teacher isn't much of a believer in the unknown anyways, I mean, he doesn't believe in John Edwards!!!!!!!

Aside from that, he has a great personality and is a great teacher.

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angel_of_hope
Knowflake

Posts: 266
From: Palmer, AK 99645
Registered: Jul 2004

posted February 10, 2005 06:47 PM     Click Here to See the Profile for angel_of_hope     Edit/Delete Message
hi Nephthys - to further intrest you , heres a link(w/same title I started) in FFA ... that got a lil more attentino than this one.... may wanna look at it ... http://www.linda-goodman.com/ubb/Forum7/HTML/004166.html

Also, (its noted in that thread but ill post it here to) ... Gia talks about this a little bit in the Universal Codes regarding the pole shift and the effects we will be seeing/feeling. You may want to jump over there and take a peek. Its at http://www.linda-goodman.com/ubb/Forum2/HTML/001285.html

jus thought that may interest you as well! enojy!

Ang

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Nephthys
Moderator

Posts: 1658
From: California
Registered: Oct 2001

posted February 17, 2005 12:11 PM     Click Here to See the Profile for Nephthys     Edit/Delete Message
Oh, Hi Angel ! Sorry I forgot to come back here. I remember that thread. I should give the Nasa link to my Biology teacher, but he is the type that what he says/believes is gospel, you know ~

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angel_of_hope
Knowflake

Posts: 266
From: Palmer, AK 99645
Registered: Jul 2004

posted February 17, 2005 03:08 PM     Click Here to See the Profile for angel_of_hope     Edit/Delete Message
lol, know what u mean!

quite interesting stuff ..
ang-

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Randall
Webmaster

Posts: 20644
From: Columbus, GA USA
Registered: Nov 2000

posted February 26, 2005 09:55 AM     Click Here to See the Profile for Randall     Edit/Delete Message
Sound like an interesting biology class!

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"Never mentally imagine for another that which you would not want to experience for yourself, since the mental image you send out inevitably comes back to you." Rebecca Clark

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