<PRE><B>Question 416986</B>
To find the energy of Earthquakes (measured in Joules) scientists use the equation: E = (2.5 x 104) x 101.5M where M is the magnitude of the earthquake. Jimmy knew that an earthquake had 2.7678E18 Joules of energy. What was the magnitude?
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E = (2.5 x 104) x 101.5M 
2.7678x10^18 = 260x101.5M
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M = 1.048806x10^14
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Cheers,
Stan H.
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