An Earthquake Was Recorded As $10 ^ { 6.5 }$ Times More Powerful Than a Reference Level Zero Earthquake

question 21

Multiple Choice

An earthquake was recorded as $10 ^ { 6.5 }$ times more powerful than a reference level zero earthquake. What was the magnitude of this earthquake on the Richter scale? $\mathrm { R } = \log \left( \frac { \mathrm { I } } { \mathrm { I } _ { 0 } } \right)$ .

• A) 3.5
• B) 6.5
• C) 16.5
• D) 15

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