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World moved
I am probably the last to mention, but the 'sea-quake' in South East Asia actually moved the world.
The "mean North pole" was shifted by about 2.5 centimeters (1 inch) in the direction of 145º East Longitude.
The length of day decreased by 2.68 microseconds.
The 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.
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.
More on it on NASA's website
Posted on January 11, 2005
in Limit of my knowledge
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