On the richter scale, the magnitude, m, of an earthquake is given by m= 2/3loge/eo, where e is the energy released by the earthquake measured in joules, and eo is the energy released by a very small reference earthquake. eo has been standardized to 10^4.4 joules.

part a
the earthquake in haiti in 2010 released 2.0*10^15 joules. what was its magnitude on the richter scale?

part b
if the energy release of one earthquake is 10,000 times that of another, how much larger is the richter scale reading of the larger earthquake than the smaller?