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). Complete story at http://www.nasa.gov/topics/earth/features/earth-20100301.html --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
