The Christmas Tsunami changed the rotation of Earth (click title to entry - thank you)

The close proximity of Earth to Sol at that point in its orbit creates unique powers between the two.  


...They also found the earthquake decreased the length of day by 2.68 microseconds. Physically this is like a spinning skater drawing arms closer to the body resulting in a faster spin. The quake also affected the Earth’s shape. They found Earth’s oblateness (flattening on the top and bulging at the equator) decreased by a small amount. It decreased about one part in 10 billion, continuing the trend of earthquakes making Earth less oblate....