What effects do p waves and S waves have on earths crust?

P-waves (primary waves) and S-waves (secondary waves) are seismic waves generated by earthquakes that travel through the Earth's crust. P-waves are compressional waves that move faster and can travel through solids, liquids, and gases, causing the crust to expand and contract, which can lead to shaking. S-waves are shear waves that only travel through solids, moving the crust side-to-side or up-and-down, creating more intense shaking. Together, these waves can cause structural damage, landslides, and other geological changes in the Earth's crust.