The magnitude M of an earthquake depends on the relative intensity I of the quake. The relationship is $M = \log I$
Express the relative intensity as a function of the magnitude.
A) $I = 10 ^ { M }$
B) $I = e ^ { M }$
C) $I = \log M$
D) $I = \ln M$

Question

Quizplus · Accepted Answer

From the given relationship, we can solve for I by taking the antilogarithm of both sides:

$$I = 10^M$$

Therefore, the answer is A.

The Magnitude M of an Earthquake Depends on the Relative M=log⁡IM = \log IM=logI

The Magnitude M of an Earthquake Depends on the Relative $M = \log I$