Question

Which of the following works on the basis of the amount of displacement occurred along a fault zone during an earthquake?

• A. Seismograph
• B. Richter scale
• C. Moment magnitude scale
• D. Seismoscope

Answer 1

The correct option is C Moment magnitude scale

The intensity of an earthquake measured using a moment magnitude scale is based on the amount of displacement occurred along a fault or seismic zone unlike the richter scale that measures the motion of the ground at a given point during the earthquake. Whereas a seismograph is used to plot the seismic waves arising during an earthquake and a seismoscope is used to measure the time of occurrence of an earthquake.