A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of . Find this earthquake's magnitude.
A) M = 3.8
B) M = 7.8
C) M = 6.5
D) M = 7.1
E) M = 8.7

Question

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of  . Find this earthquake's magnitude. ​
A) M = 3.8 
B) M = 7.8 
C) M = 6.5 
D) M = 7.1 
E) M = 8.7

Quizplus · Accepted Answer

The Answer of A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of  . Find this earthquake's magnitude. ​
A) M = 3.8 
B) M = 7.8 
C) M = 6.5 
D) M = 7.1 
E) M = 8.7

A Seismograph 300 Km from the Epicenter of an Earthquake