Approximately how much more energy is released in a 6.5 Richter magnitude earthquake than in one with magnitude 5.5?

Question

Quizplus · Accepted Answer

The Richter scale is logarithmic, which means that each increment of one magnitude unit represents a tenfold increase in the seismic waves' amplitude and a 32-fold increase in the released energy (since energy is proportional to the square of the amplitude). Therefore, a 6.5 magnitude earthquake releases approximately 32 times more energy than a 5.5 magnitude earthquake.

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