Richter 'magnitude' scale explained

The Richter scale, developed by the American geologist Charles Richter in the 1930s, is a "logarithmic" scale, which means that each one-point increase on the scale represents a tenfold increase in the magnitude of the earthquake.
The Richter scale, developed by the American geologist Charles Richter in the 1930s, is a logarithmic scale, which means that each one-point increase on the scale represents a tenfold increase in the magnitude of the earthquake.

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