More than 1,000 earthquakes occur along this 1,300-kilometer-long (800-mile-long) fault system that forms part of the transform boundary between the Pacific and North American plates.

Transform boundaries neither create nor consume crust. Rather, two plates move against each other, building up tension, then releasing the tension in a sudden and often violent jerk. This sudden ...

This can form deep ocean trenches and volcanic mountain ranges. ... Transform Boundaries: When plates slide past each other horizontally, it is called a transform boundary.

It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps.