GEOLOGY

Detailed explanation-1: -According to the theory of plate tectonics, the San Andreas Fault represents the transform (strike-slip) boundary between two major plates of the Earth’s crust: the Northern Pacific to the south and west and the North American to the north and east.

Detailed explanation-2: -The San Andreas fault is a transform plate boundary, accomodating horizontal relative motions.

Detailed explanation-3: -what type of fault is the San Andreas? A San Andreas earthquake would be classified as occurring on a strike-slip fault. Strike-slip faults are found along boundaries of tectonic plates sliding past each other.

Detailed explanation-4: -The San Andreas Fault System, which crosses California from the Salton Sea in the south to Cape Mendocino in the north, is the boundary between the Pacific Plate (that includes the Pacific Ocean) and North American Plate (that includes North America).