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the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes is?

  • A.Charles Richter
  • B.Hiram Walker
  • C.Giuseppe Mercalli
  • D.Joshua Rumble

Answer: A

Charles Richter.

He devised the scale at the California Institute of Technology in 1935 with Beno Gutenberg. It is logarithmic: each whole number is a tenfold increase in wave amplitude and about thirty-two times the energy.

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