Earthquakes are not associated with the weather but instead are natural disasters. An earthquake is caused by the movement of lithospheric plates inside the surface of the Earth. Because these plates move, the surface of the Earth vibrates. The vibrations can travel all around the Earth. ‘Seismograph’ and ‘Richter scale’ terms are both related to earthquakes. The difference between Seismograph and Richter scale are discussed below
Difference between Seismograph and Richter scale
A seismograph is an instrument that measures and records the details of an earthquake such as its duration, force, and direction. The seismograph has a pen attached to it. When an earthquake occurs, the pen also vibrates along with the vibrations produced by the earthquake. The pen records the movements of vibrations on a moving strip of paper. Various waves which are formed by the moving pen give us an estimate of the direction and force of an earthquake. It also calculates the difference in the arrival of P and S waves.
The intensity of an earthquake is measured on the Richter scale and the Mercalli scale. The Richter scale is commonly used for measuring an earthquake. While the Richter scale measures the intensity of the earthquake on a scale from 1 to 9, the Mercalli scale measures it on a 12 point scale. Earthquakes measured above the Richter scale of 6 onwards cause damage to life and property.
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