Multiple choice general knowledge science & technology

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

  1. Charles Richter

  2. Hiram Walker

  3. Giuseppe Mercalli

  4. Joshua Rumble
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A Correct answer
Explanation

Charles Richter developed the Richter magnitude scale in 1935 at CalTech to measure earthquake strength. The scale is logarithmic, meaning each whole number increase represents 10 times greater amplitude. Giuseppe Mercalli developed a different intensity scale based on observed damage.

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