Find the Magnitude R of an Earthquake of Intensity $I \left( \text { let } I _ { 0 } = 1 \right. \text { ) }$

Multiple Choice

Find the magnitude R of an earthquake of intensity $I \left( \text { let } I _ { 0 } = 1 \right. \text { ) }$ .​ $I = 16000$ ​

A) 3.20
B) 5.20
C) 4.20
D) 2.20
E) 6.20