The earth spins faster than the speed of sound

The Earth spins at the speed of 1,036 miles per hour (1,667 kilometres per hour).

• The tides can slow the Earth's rotation speed and add about 2.3 milliseconds to our day every century.
• Weather systems can also change the Earth's rotation.
• Earthquakes can change the length of the day by redistributing the Earth's mass. The 2011 earthquake in Japan accelerated the Earth's spin and shortened the day by 1.8 microseconds.