GEOLOGY

Detailed explanation-1: -The Richter scale is used to rate the magnitude of an earthquake, that is the amount of energy released during an earthquake.

Detailed explanation-2: -The moment magnitude scale considers the fault’s geometry (the angle and other qualities of the plane that characterize the fault that ruptures during an earthquake) and the earthquake’s seismic moment (that is, the displacement of the fault across its entire surface multiplied by the force used to move the fault).

Detailed explanation-3: -The Richter scale is a logarithmic scale that measures the largest jolt of energy released by an earthquake. The moment magnitude scale is a logarithmic scale that measures the total amount of energy released by an earthquake.

Detailed explanation-4: -Moment Magnitude (MW) is based on physical properties of the earthquake derived from an analysis of all the waveforms recorded from the shaking. First the seismic moment is computed, and then it is converted to a magnitude designed to be roughly equal to the Richter Scale in the magnitude range where they overlap.