GEOLOGY

Detailed explanation-1: -Of the two types of surface waves, the L-waves are the most destructive. They can literally move the ground beneath a building faster than the building itself can respond, effectively shearing the base off of the rest of the building.

Detailed explanation-2: -It is the surface waves which cause most property damage because surface waves produce more ground movement and travel more slowly, so they take longer to pass. Earthquake locations-An earthquake starts at the earthquake focus which is the fault zone along which the earthquake slips.

Detailed explanation-3: -Surface waves moves rock particles in a rolling and swaying motion, so that the earth moves in different directions. ➢ These are the slowest moving waves, but are the most destructive for structures on earth.

Detailed explanation-4: -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-5: -The most destructive type of seismic wave is the surface wave. This wave travels slowly, but it has the largest amplitude when compared to the body waves (P-waves and S-waves). It travels along the surface and causes the most surface destruction. It can damage buildings, highways, bridges, and other infrastructures.