Question

Find the magnitude R of an earthquake with a relative size s = 5,641,200. (R = log s)Round to the nearest tenth.

Answer 1

ANSWER

R = 6.8

EXPLANATION

If the magnitude R of an earthquake is given by the equation,

$R=\log s$

And, in this problem, s = 5,641,200, then the magnitude is,

$R=\log(5,641,200)\approx6.8$

Hence, the magnitude of this earthquake is 6.8, rounded to the nearest tenth.