Magnitudes are based on a logarithmic scale (base 10). What this means is that for each whole number you go up on the magnitude scale, the amplitude of the ground motion recorded by a seismograph goes ...

Still, the Richter Scale remains widely recognized by the public. It introduced the concept of a logarithmic scale, where each whole-number increase represents a tenfold increase in ground motion ...

Did you feel that? Impact of Richter Scale inventor and Ohio native Charles Richter still being felt on 125th birthday in ...

the inventor of the Richter Scale. The seismologist, aka Earth scientist, invented the critical measurement tool to help better understand the magnitude of earthquakes. Who is Charles Richter?