Earth(quake) Diaries

Today something like a millionth part of second may not seem as much, but in years to come, this makes me question how much will 1.26 microseconds add up to? And will this day will be remembered in history as the day that time was manipulated for the first time according to modern technology?

How many more earthquakes have done the same but we were not aware? And is the length of the day really the length as we know it?

"The Earth is not a perfect sphere. It is pinched in slightly at the poles and bulges at the equator. As such, it rotates with a wobble just like a spinning top. However, changes in the distribution of mass can affect this spin."

http://news.bbc.co.uk/1/hi/world/americas/8547955.stm