SOLAR SYSTEM

Detailed explanation-1: -P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.

Detailed explanation-2: -Sound waves are P-waves moving through the air. Because the earth’s mantle becomes more rigid and compressible as the depth below the asthenosphere increases, P-waves travel faster as they go deeper in the mantle. The density of the mantle also increases with depth below the asthenosphere.

Detailed explanation-3: -P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves.

Detailed explanation-4: -Rayleigh waves typically are larger and cause more damage than the faster-moving seismic P-waves and S-waves. S waves (in geology) Short for secondary waves, these are one of the types of seismic wave generated by earthquakes and underground explosions.

Detailed explanation-5: -Mantle rock is generally denser and stronger than crustal rock and both P-and S-waves travel faster through the mantle than they do through the crust.