Calculation of true thickness of the bed

 34. The Surface wave magnitude of an earthquake was misreported as 5 with seismic energy E. if the correct magnitude of the earthquake is 7, then the seismic energy generated by the earthquake will be

(Thanks to Pragnath, AU)

Solution:

 

$log(\frac{E_{7}}{E_{5}})=\frac{15.3}{12.3}$

 

$E_{7}=10^{1.5*2}*E_{5}$

 

Answer is 1000E

 

Concerning the similar question:

https://gpsurya.blogspot.com/2016/05/gate-2010.html