Question

how earthquake occur

Answer 1

An earthquake is a vibration or tremor produced in the Earth’s crust. It is caused by the disturbances originating deep inside the Earth’s crust. Generally, the period for which the effect of an earthquake is felt is very small.

Earthquakes vary extremely in magnitude. Sometimes, earthquakes are so mild that we don’t even feel them. Earthquakes of large magnitudes are not very frequent, but they can produce large scale damage to houses, buildings, and roads.