The Richter scale originally had how many magnitudes?
12
Infinite
10
6
Answer
Originally, the Richter scale had 10 magnitudes. Developed in 1935 by Charles Francis Richter, it's a logarithmic scale used to measure the strength of earthquakes based on the amplitude of seismic waves recorded by seismographs. Each whole-number step increase on the scale represents a tenfold increase in the amplitude of the seismic waves, and roughly a 32-fold increase in the energy released.
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