On april 11, 2012, two earthquakes were measured off the northwest coast of sumatra. the first had a magnitude of 8.6. the second had a magnitude of 8.2. by what approximate factor was the intensity of the first earthquake greater than the intensity of the second earthquake? mc020-1.jpg m = the magnitude of an earthquake i = the intensity of an earthquake i0 = the smallest seismic activity that can be measured
0.40 1.02 1.05 2.51