How do scientists measure tectonic plate movement?

Answer 1

I was confused about this too, I'm not quite sure but I think they measure the movement with GPS, they move about a centimeter per year. But the some people say that the motion is different and that you use a Seismometer, the same thing used to measure earthquakes.

Answer 2

Radio signals are continuously beamed from satellites to GPS ground stations, which record the exact distance between the satellites and the ground station. Over time, these distances change slightly. By recording the time it takes for the GPS ground stations to move a given distance, scientist can measure the speed at which each tectonic plate move

Answer 3

Scientists use a network of satellites called the global positioning system to measure the rate of tectonic plate movement

Answer 4

The same way they measure earthquakes a 'Seismometer!'
These days they use GPS markers.

Answer 5

its measured with a seisograph