It is a fracture on which one body of rock slides past another.

What is another term for focus?

This is the point at the surface directly above the focus.

These are the energy that travels which are released from the focus of an earthquake.

These waves can only move along the surface.

These are surface waves that cause the ground to move back and forth in a snake-like movement.

These are also called shear wave.

These are body waves in which the particles of the material move back and forth parallel to the direction of the wave motion.

These are surface waves that cause the ground to ripple up and down.