he intensity levels I of two earthquakes measured on a seismograph can be compared by the formula I log1 =M1M2 12 here M is the magnitude given by the Richter Scale. In August 2009, an earthquake of magnitude 6.1 hit Honshu,]apan. On 28 March 1964, Prince William Sound, Alaska, was hit with a more devastating earthquake, this time with a magnitude of 9.2. o the nearest whole number, how many times greater was the intensity of the 28 March 1964 earthquake