As the crust of the San Andrea is continuously moving due to the tectonic activity and is the main manifest of the tectonic boundary of the North America and the pacific plate. This fault along with the pacific plate will move towards the Los angles and eastern San Francisco as it moves about 3.5 cm per year.
As 1 km equals to about 100 000 cm
, then the distance of 620 km = 62, 000,000 cm and 62,000,000 will be divided by 3.5 equal to 17. 71 years to collide with the eastern side.
A fault scrap is a small offset of the ground surface moves vertically with the respect to the other and the faulting is attributes to the displacement of the land with the movement along the faults and is indicated by the consequent erosion along the geologic faults. They are hard and weak rocks and the scrap formation is equal to the vertical weight displaced.
