関連ワード:
two types of waves in an earthquake two main types of waves formed in an earthquake different types of waves in an earthquake two types of surface waves earthquake two types of waves produced by earthquakes two main types of these waves formed in an earthquake what are the two types of body waves in an earthquake two types of seismic waves produced in earthquakes two main types of waves produced by an earthquake two main types of waves emanate from an earthquake. they are
