Question

what are earthquake aftershocks and why do they happen

Answer 1

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Earth quake is a natural disaster.

The shocks happen after a earth quake

An aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock. ... In some earthquakes the main rupture happens in two or more steps, resulting in multiple main shocks.

Answer 2

A sudden violent shaking of the ground, typically causing great destruction as a result of movement within in earth's crust or volcanic action.

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two palates are rubbing against each other, they stick a little when the rocks break, the earthquake occurs.

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