The tectonic plates underneath the earths crust are moving, and these plates crash into, and slide against each other. These places where the plates meet are called fault lines. Since the plates are constantly moving, there is a lot of pressure between the plates, and eventually, it needs to be released in the form of an earthquake.
The majority of faults occur in the plate boundaries.
Most Faults Occur Where The Earths Crust Is Extended
That causes earthquakes
earthquakes
Normal Faults, (Rifting).
Normal faults.
Within or adjacent to faults.
reverse faults
vertical... i think
These will form reverse or thrust faults.
Strike slip faults display horizontal or "sideways" deformation.
fault