500
Explain in detail the kind of movement produced by each of the three types of seismic waves.
What are
P waves (primary waves): compress and expand the ground, move through sloids and liquids, are the fastest moving waves.
S waves (secondary waves): vibrate from side to side and up and down as they travel and move only through solids.
Surface waves: Move along the surface and move more slowly than P & S waves, and can produce violent ground movements.