This view of Earth comes from NASA's Moderate Resolution Imaging Spectroradiometer aboard the Terra satellite. (Credit: NASA)From Science Daily:
Science Daily (Mar. 2, 2010) — The Feb. 27 magnitude 8.8 earthquake in Chile may have shortened the length of each Earth day.
JPL research scientist Richard Gross computed how Earth's rotation should have changed as a result of the Feb. 27 quake. Using a complex model, he and fellow scientists came up with a preliminary calculation that the quake should have shortened the length of an Earth day by about 1.26 microseconds (a microsecond is one millionth of a second).
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