In seismology, S-waves, also known as secondary waves or shear waves, are a type of elastic wave. They are one of the two main types of elastic body waves, the other being P-waves or primary waves. S-waves are characterized by their side-to-side, or shearing motion, which means they can only travel through solids. Unlike surface waves, S-waves move through the body of an object. They are slower than P-waves and do not cause as much damage during an earthquake, but they are more destructive than surface waves because they can travel through all types of materials. read more >>

In seismology, S-waves, secondary waves, or shear waves (sometimes called an elastic S-wave) are a type of elastic wave, and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves.read more >>