text: According to Italy 's National Institute of Geophysics and Volcanology , the earthquake shifted the Earth 's axis by 25 cm ( 9.8 in ) . This deviation led to a number of small planetary changes , including the length of a day and the tilt of the Earth .
simplified: According to Italy 's National Institute of Geophysics and Volcanology , the earthquake shifted the Earth 's axis by 25 c. This deviation led to a number of small planetary changes , including the length of a day and the tilt of the Earth .