Math and earthquake question. Please help!!!?

The earthquake with a magnitude 8 releases a million times more energy than an earthquake with magnitude 4.” How accurate is this statement? Explain your answer in mathematical terms. According to the Earthquake Hazards Program explanations: Summarize the source of the calculations for the Richter... show more The earthquake with a magnitude 8 releases a million times more energy than an earthquake with magnitude 4.”

How accurate is this statement? Explain your answer in mathematical terms.
According to the Earthquake Hazards Program explanations:

Summarize the source of the calculations for the Richter scale.
News reports use the Richter scale and/or the Mercalli scale to report earthquake destruction. Compare the Richter scale and Mercalli scale. In your opinion, which is more meaningful in the use of reporting earthquake destruction?
Describe how math and science has made reporting earthquakes more accurate.
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