For example, sharp cliffs called scarps form when the two sides of the fault slide past each other during earthquakes. On the ground, one can find the San Andreas Fault by looking for landforms it created. Sometimes the boundary is a zone of several smaller faults, one or more of which may break during an earthquake. ![]() But viewed up close, there are actually many fractures and faults that mark the zone where the two plates slide past one each other. This narrow break between the two plates is called a fault. ![]() Viewed from space, the San Andreas Fault looks like a long, narrow valley that marks where the North America plate meets the Pacific plate.
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