What are the two types of surface waves? How are they different and which one would cause more damage? Explain.

Earthquake shaking and damage is the result of three basic types of elastic waves. Two of the three propagate within a body of rock. The faster of these body waves is called the primary or P wave. Its motion is the same as that of a sound wave in that, as it spreads out, it alternately pushes (compresses) and pulls (dilates) the rock. These P waves are able to travel through both solid rock, such as granite mountains, and liquid material, such as volcanic magma or the water of the oceans.

The two types are body waves and surface waves. Body waves can travel through the earth's inner layers, but surface waves can only move along the surface of the planet