This was on a Italian web.
Rome, March 2 - The Chilean earthquake of 27 February, a magnitude 8.8, caused a shift in the Earth's rotation and a corresponding reduction in the length of the period of revolution of the planet: it is reported that study conducted by the Jet Propulsion Laboratory of NASA. The changes planned by JPL are not measurable experimentally, since they are too small, but they are predictable using mathematical models: the shift of it is about eight inches, and the redistribution of mass caused an acceleration of the rotation of the planet which shortened the duration of the day of 1.26 millionths of a second. The principle is similar to that of the rotating figure skater that accelerates approaching the arms to the body due to movement of the tectonic plates of the Earth has become more compact and thus its rotation speed is increased.
In other words: shorter days
Rome, March 2 - The Chilean earthquake of 27 February, a magnitude 8.8, caused a shift in the Earth's rotation and a corresponding reduction in the length of the period of revolution of the planet: it is reported that study conducted by the Jet Propulsion Laboratory of NASA. The changes planned by JPL are not measurable experimentally, since they are too small, but they are predictable using mathematical models: the shift of it is about eight inches, and the redistribution of mass caused an acceleration of the rotation of the planet which shortened the duration of the day of 1.26 millionths of a second. The principle is similar to that of the rotating figure skater that accelerates approaching the arms to the body due to movement of the tectonic plates of the Earth has become more compact and thus its rotation speed is increased.
In other words: shorter days
