How fast is the earth spinning?

How fast does Earth orbit the sun? Earth's spin, of course, is not the only motion we have in space. Our orbital speed around the sun is about 67,000 mph (107,000 km/h),according to Cornell. read more

Finally, earthquakes can mess with the length of the day by actually redistributing the Earth's mass. The 2011 earthquake that struck Japan actually accelerated the Earth's spin (because it shifted the mass toward the equator) and shortened the day by 1.8 microseconds [source: CBS News]. read more

Earth's spin is constant, but the speed depends on what latitude you are located at. Here's an example. The circumference (distance around the largest part of the Earth) is roughly 24,898 miles (40,070 kilometers), according to NASA. read more