Saturday, March 12, 2011

The Earth's axis has shifted 10 cm

The impact of the earthquake that hit Japan this morning shifted the earth's rotation axis is nearly 10 inches. It's the preliminary result of studies carried out by National Institute of Geophysics and Volcanology. The impact of this event on the axis of rotation was also much greater than that of the great Sumatra earthquake of 2004, which was 7 cm of linear and two thousandths of an arcsecond angle, and probably second only to Chile earthquake of 1960.

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