27 If a Seismologist Records the Energy of P Waves

Multiple Choice

27. If a seismologist records the energy of P waves as 4.7 x 10¹² joules and the energy of S waves as 3.4 x 10⁹ joules, what is the total energy? What would the combined effect be on the Richter scale?

A) Total energy is 4.7 x 10¹² joules and 5.5 on the Richter scale
B) Total energy is 8.1 x 10^21.0 joules and 5.5 on the Richter scale
C) Total energy is 1.3 x 10³ joules and 5.5 on the Richter scale
D) Total energy is 1.6 x 10^22.0 joules and 5.5 on the Richter scale