a seismograph
a Geiger counter (guy-ga)
The machine that graphs earthquakes is called a seismograph. It measures the motion of the ground caused by seismic waves generated by earthquakes.
Your eyes detect it, (retina) it is then sent down your optical nerve to the brain
The science of earthquakes are known as seismology.
richter scale
what you call a machine that makes clothes is a sewing machine.
Seismologists
Epicentre
Seismographer
A Seismologist.
richter
machine gewehr............................................