The GutenbergRichter Law states that the number N of earthquakes per year worldwide of
Chapter 1, Problem 43(choose chapter or problem)
The GutenbergRichter Law states that the number N of earthquakes per year worldwide of Richter magnitude at least M satisfies an approximate relation log10 N = a M for some constant a. Find a, assuming that there is one earthquake of magnitude M 8 per year. How many earthquakes of magnitude M 5 occur per year?
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