What is a fault?

Answer 1

A fault is a break or fracture in the Earth's crust where rocks on either side of the fracture move relative to each other. These movements can cause earthquakes when the stress on the fault exceeds the strength of the rocks, causing them to break and slide past each other. Faults can be classified based on the type of movement that occurs along them, such as normal faults, reverse faults, and transform faults.