Question

What are earthquakes and what causes them?

Answer 1

Answer:

Earthquakes are caused by a sudden release of stress along faults in the earth's crust. The continuous motion of tectonic plates causes a steady build-up of pressure in the rock strata on both sides of a fault until the stress is sufficiently great that it is released in a sudden movement.

Answer 2

Answer:

Earthquakes are movement on the earth's crust. The causes of earthquakes are the slip on a fault. It realises seismic waves.