Application Task #3 Total Marks 10 1. Using the formula M = log (9 a. Prove that for two different earthquakes, the ratio of their intensities is given by the expression: L2 = loMZMi Jr1 Where 11 and :2 represent the tntensitites of the two different earthquakes And M1 and M2 represent the magnitudes of each earthquake. [2 marks] b. Suppose earthquake 2 is three times as intense as the rst earthquake and that the magnitude of earthquake 1 is 5 on the Richter scale, then determine the magnitude of the 2"d earthquake. [2 marks]