In Exercises 47 and 48, use the Richter scale (see page 371) for measuring the

Chapter 4, Problem 48

(choose chapter or problem)

In Exercises 47 and 48, use the Richter scale (see page 371) for measuring the magnitudes of earthquakes.

Find the magnitudes R of the following earthquakes of intensity I \(\left(\text { let } I_{0}=1\right)\).

(a) I = 39,811,000

(b) I = 12,589,000

(c) I = 251,200

Text Transcription:

(let I_0 = 1)

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