The Richter magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. ... First the seismic moment is computed, and then it is converted to a magnitude designed to be roughly equal to the Richter Scale in the magnitude range where they overlap.
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The Richter magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. ... First the seismic moment is computed, and then it is converted to a magnitude designed to be roughly equal to the Richter Scale in the magnitude range where they overlap.