Explanation:

 (P waves)

Primary waves are also called as the longitudinal or compressional waves.
They are Analogous to sound waves.
The Particles of the medium vibrate along the direction of propagation of the wave.
They move faster and are the first to arrive at the surface.
P-waves waves are of high frequency.
They can travel in all mediums.
Velocity of P waves in Solids > Liquids > Gases.
Their velocity depends on shear strength or elasticity of the material.

S waves

Secondary waves are also called as transverse or distortional waves.
They are analogous to water ripples or light waves.
S-waves arrive at the surface with some time lag.
A secondary wave cannot pass through liquids or gases.
These waves are of high frequency waves.
Travel at varying velocities (proportional to shear strength) through the solid part of the Earth’s crust, mantle