An earthquake occurs far from an observing station and produces P, S, and surface waves. Do all the wave arrive at the same time? If not, which arrives first and which last?
2 answers
S waves are slower than P waves, and speeds are typically around 10% of that of P waves in any given material.
Oh, and surface waves are the slowest.
p first
then s
then surface
p first
then s
then surface