C
catmandoo
Guest
On SKY TG-24 TV in Italy, Enzo Boschi, the head of the Italian National Geophysics Institute, stated that the magnitude 8.9-9.0 earthquake that happened beneath the Indian Ocean off of Indonesia this weekend had "disturbed the Earth's rotation."<br /><br />See story.<br /><br />Is this normal? There have been other 9.0-magnitude earthquakes in the past, did these also affect the Earth's rotation? Will we have to compensate somehow, by adding an additional second? Is the Earth's rotation permanently damaged by these events? What is the cumulative effect of all of these 9.0 magnitude earthquakes on the Earth's rotation (I can't believe these are a new phenomenon that the Earth had never experienced before)?<br /><br />Thanks.