Answer:
Earthquakes are caused by fault lines.
Explanation:
The continents are on massive tectonic plates the are constantly shifting because of the movement of magma underneath them. When the tectonic plates rub against each other, or collide with each other, it creates movement that we know as earthquakes. The reason why we feel earthquakes is because of the sudden energy release which causes seismic waves. One famous fault if the San Andreas fault, located in California. That is the reason why earthquakes are common in California (because it is located right next to a fault line).
