The anecdotal motion of the Earth is in motion relative to fixed stars and earthquakes. In the external power of gravity of the sun, the moon and other celestial objects, the Earth's anterior motion has anterior rotation of the axis. Earth's rotation and angular velocity due to the effects of gravity of the Moon for millions of years has slowed down very slowly. However, on the surface of the earth like 2004 the Indian Ocean earthquake, some big events have increased the speed of Earth's rotation by three microseconds. [8] Changes in the Earth's rotation are achieved due to the continuation of the angular momentum due to the change in the distribution of the earth's surface by the post-glacial glacier retreat.
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