Earth Rocked

By now you've heard that a devastating earthquake and tsunami has killed more than 150,000 people in Indonesia, Sri Lanka, and other nations on the coast of the Indian Ocean. The word "tsunami" is Japanese for "wicked big harbor wave". Link. The earthquake that caused the Indian Ocean tsunami literally rocked the planet, changing the tilt of the Earth by 2.5 cm (about an inch). The resulting shift in the Earth's layers actually increased the spin rate of the Earth by 3 millions of a second. In other words, the length of a day has been shortened very slightly, according to the journal Nature. Link