Solve the Problem $1,258,925$ Times More Powerful Than a Reference Level Earthquake, Or

Multiple Choice

Solve the problem.
-An earthquake was recorded with an intensity which was $1,258,925$ times more powerful than a reference level earthquake, or $1,258,925 \cdot \mathrm { I } 0$ . What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth) ? Intensity on the Richter scale is $\log _ { 10 } ( \mathrm { I } / \mathrm { I } 0 )$ .

A) $14.0$
B) $0.6$
C) $6.1$
D) $5.1$