Definitions for "Seismic waves"
Seismic waves are vibration which travel through the ground. The different types can be divided into to types, those which travel through the rock (body waves) and those which travel along a boundary such as the earth?s surface (surface waves). The distance travelled will depend on the size of the source of vibration (e.g. blast) and the nature of the rock through which the waves travel.
A long-period WAVE caused by an underwater seismic disturbance or volcanic eruption.
A vibrational disturbance in the Earth that travels at speeds of several kilometers per second. There are three main types of seismic waves in the earth: (fastest), (slower), and surface waves (slowest). Seismic waves are produced by earthquakes.