Question

The intensities of earthquakes are measured with seismographs all over the world at different distances from the epicenter. Suppose that the intensity of a medium earthquake is originally reported as 105.2 times 1. Later this value is revised as 105.9 times I. The local magnitude M (on the Richter scale) of an earthquake of intensity is given by log (6) Part 1 a. Determine the magnitude of the earthquake using the original estimate for intensity. M = 5.2 Part 2 out of 3 b. Determine the magnitude using the revised estimate for intensity. M- Su

Answer 1

I log/ 5910 Boy = 5.9. Blog (en cours de 1059 I. a (o dog (mun) - log (1000) og (mutn) - tog (10) = log (m"+n) - 3 6g/10) = log (mto) - 3. 3 logz 127x² Vy²8 g(x+)/ log, (27+8) + Loge (Wy28) - logly) eaglenes) 3. log; (3) +-3 dog,x + flog; (428) - dogodly) 2 Logemar 200R24 bleno + RGB Le LO ÉCOOR3 3 + 36,9+Angy!) - dog, yr (O+B) 1