GEOLOGY

Detailed explanation-1: -Elastic Rebound Hypothesis-Most earthquakes are produced by the rapid release of elastic energy stored in rock that has been subjected to great forces. Aftershock-A small earthquake that follows the main earthquake.

Detailed explanation-2: -Earthquakes are the result of sudden movement along faults within the Earth. The movement releases stored-up ‘elastic strain’ energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.

Detailed explanation-3: -The energy typically released in an earthquake is kinetic energy, thermal energy and sound energy. The kinetic energy associated with an earthquake is due to the movement of the ground. The thermal energy comes from the friction force that exists in the fault.

Detailed explanation-4: -Earthquakes are usually caused when underground rock suddenly breaks and there is rapid motion along a fault. This sudden release of energy causes the seismic waves that make the ground shake.

Detailed explanation-5: -When a rupture occurs along a fault, the strain energy stored on either side of the fault is released in the form of seismic waves and heat. These seismic waves propagate away from the ruptured fault zone and through the geologic layers of rock and soil.