http://cnn.netscape.cnn.com/news/story.jsp?floc=NW_1-T&oldflok=FF-APO-PLS&idq=/ff/story/0001/20041227/0714759370.htmScientist believed earthquake effected earth's rotation.
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Enzo Boschi, the head of Italy's National Geophysics Institute, likened the quake's power to detonating a million atomic bombs the size of those dropped on Japan during World War II, and said the shaking was so powerful it even disturbed the Earth's rotation.
``All the planet is vibrating'' from the quake, he told Italian state radio. Other scientists said it was early too say whether the rotation was affected by the quake.
The earthquake occurred at a spot where the Indian Ocean plate is gradually being forced underneath Sumatra, which is part of the Eurasian plate, at about the speed at which a human fingernail grows, Booth explained.
``This slipping doesn't occur smoothly,'' he said. Rocks along the edge stick against one another and pent-up energy builds over hundreds of years.
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