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If one earthquake has magnitude 6.5 on the Richter Scale, what is the magnitude of another quake that is 55 times as intense? Round it to the nearest tenth (Hint: M = log(I/S))

A) 8
B) 8.3
C) 8.7

1 answer

log 55 = 1.74
6.5+1.74 = 8.24

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