Use the Following to Answer Questions

question 67

Multiple Choice

Use the following to answer questions :
The magnitude of an earthquake is given by the equation where I is the actual intensity of the earthquake and I₀ is the reference intensity (the smallest earth movement that can be recorded on a seismograph) .
-Find the intensity I of the earthquake given M(I) = 4.5. Round your answer to the nearest tenth.

• A) ≈ 31,632.9I₀
• B) ≈ 31,622.8I₀
• C) ≈ 31,617.6I₀
• D) ≈ 31,610.5I₀

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