"Using a complex model to perform a theoretical calculation based on a US Geological Survey, Richard Gross of NASA's Jet Propulsion Laboratory has determined that by changing the distribution of the Earth's mass, the earthquake that devastated Japan last Friday should have sped up the Earth's rotation, resulting in a day that is about 1.8 microseconds (1.8 millionths of a second) shorter." Undersea Cables Damaged By Earthquake "The horrific earthquake and the ensuing tsunami in Japan have caused widespread damage to undersea communications, according to data collected by telecom industry sources. Initially, it was thought that the damage to the cables that connect Japan and Asia to each other and other parts of the world was limited, but new data shows the extent of the problems."