Wednesday, June 22, 2011

Could Earthquakes Cause a Pole Shift?

Could Earthquakes Cause a Pole Shift?

It has become a common feature when the media reports major earthquakes these days – our planet slowed down and was knocked off its axis. While it sounds dramatic, the numbers are minuscule and make no difference in the greater scheme of things:

NASA geophysicist Richard Gross said that the recent Chilean earthquake “sped up the rotation of the earth enough to shorten the day by an estimated 1.26 millionths of a second”, and moved the Earth’s axis by 8 centimetres. And that the 2004 Sumatra quake, which generated the Boxing Day tsunami, would have shortened every day by 6.8 microseconds, with a 5 or 6 centimetre movement.

Submitted by Robert Bast on March 24, 2011

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