Respuesta :

Answer:

S - waves

Explanation:

Secondary s-waves are elastic waves and they are part of the earliest waves that reach are seismic station.

Both  P and S -waves are the first set of waves to reach a seismic station after an earthquake event.

  • P waves are primary waves and they move through any kind of earth materials.
  • They transmitted longitudinally.
  • S - waves are secondary waves. These waves are shear waves and they cannot be propagated through liquids.