Sound-like waves that travel through the ground from an earthquake or other source of vibration.
Sound-like waves that travel through the ground from an earthquake or other source of vibration. There are several types of seismic wave. P-waves travel underground as a fast-moving compression wave. S-waves are slower transverse waves that travel underground and also at the surface.
There are several types of seismic wave. P-waves travel underground as a fast-moving compression wave. S-waves are slower transverse waves that travel underground and also at the surface.