What is the rotation of earth per hour? .

The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second--or roughly 1,000 miles per hour.

The earth spins 460 meters per seconds so roughly spins 1,000 miles per hour.

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.