GEOLOGY

Detailed explanation-1: -A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake-or may occur slowly, in the form of creep.

Detailed explanation-2: -Earthquakes occur on faults-strike-slip earthquakes occur on strike-slip faults, normal earthquakes occur on normal faults, and thrust earthquakes occur on reverse or thrust faults. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other.

Detailed explanation-3: -Fractures are simply cracks in the crust where there is no movement. Faults are classified according to the direction of relative movement along the fault. The terms hanging wall and foot wall refer to the relative position of the plates after movement.

Detailed explanation-4: -A fault is formed in the Earth’s crust as a brittle response to stress. Generally, the movement of the tectonic plates provides the stress, and rocks at the surface break in response to this. Faults have no particular length scale.

Detailed explanation-5: -Under high temperature and pressure conditions common deep within Earth, rocks can bend and flow. In the cooler parts of Earth, rocks are colder and brittle and respond to large stresses by fracturing. Earthquakes are the agents of brittle rock failure. A fault is a crack across which the rocks have been offset.