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- Earthquake is a sudden movement of earth that results in tremors.
- The origin of earthquake inside the earth crust is known as ‘origin’.
- The point of origin on the surface is known as ‘epicenter’.
- Earthquake can cause significant damage to buildings, infrastructure, and the environment.
- Earthquake occurs due to movement of tectonic plates that constitute the earth crust.
- Earthquakes can occur anywhere in the world, but they are more common in regions with high tectonic activity
- Earth experiences earthquakes all the time but only a few of them are noticeable.
- The waves of earthquake can be recorded on a simple device known as ‘Seismograph’.
- The scale to measure the magnitude of earthquake is known as ‘Richter scale’.
- Earth above the value of 7 on the Richter scale are very destructive.
