Answer
Beno Gutenberg, a German seismologist, collaborated with Charles Francis Richter, an American seismologist, on the development of the Richter scale. The scale, introduced in 1935, measures the magnitude of earthquakes berdasarkan on the amplitude of seismic waves recorded by seismographs. It uses a logarithmic scale, where each whole-number increase represents a tenfold increase in ground motion amplitude, or a 32-fold increase in energy released.