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Reply #20: Chile Earthquake May Have Shortened Days on Earth [View All]

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superconnected Donating Member (1000+ posts) Send PM | Profile | Ignore Tue Mar-02-10 06:12 PM
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20. Chile Earthquake May Have Shortened Days on Earth
Source: space.com

The massive 8.8 earthquake that struck Chile may have changed the entire Earth's rotation and shortened the length of days on our planet, a NASA scientist said Monday.

The quake, the seventh strongest earthquake in recorded history, hit Chile Saturday and should have shortened the length of an Earth day by 1.26 milliseconds, according to research scientist Richard Gross at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

"Perhaps more impressive is how much the quake shifted Earth's axis," NASA officials said in a Monday update.

The computer model used by Gross and his colleagues to determine the effects of the Chile earthquake effect also found that it should have moved Earth's figure axis by about 3 inches (8 cm or 27 milliarcseconds).

Read more: http://news.yahoo.com/s/space/20100302/sc_space/chileea...
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