# Velocity of P-waves Calculator

Posted by Dinesh onP-waves are a type of elastic wave, and are one of the two main types of elastic body waves, called seismic waves in seismology, that travel through a continuum and are the first waves from an earthquake to arrive at a seismograph.

### Formula:

v_{p} = ?(? + 2?) / ?

? - is the shear modulus (modulus of rigidity, sometimes denoted as G)

? - the density of the material through which the wave propagates

? - is the first Lame parameter