Definition of Richter scale
: an open-ended logarithmic scale for expressing the magnitude of a seismic disturbance (as an earthquake) in terms of the energy dissipated in it with 1.5 indicating the smallest earthquake that can be felt, 4.5 an earthquake causing slight damage, and 8.5 a very devastating earthquake
Origin of richter scale
Charles F. Richter
First Known Use: 1938
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Learn More about richter scale
Britannica.com: Encyclopedia article about "Richter scale"
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