Seismology is the study of earthquakes and seismic waves that move through and around the earth.
A seismologist is a scientist who studies earthquakes and seismic waves. Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs. There are several different kinds of seismic waves, and they all move in different ways. The two main types of waves are body waves and surface waves .