GEOLOGY

Detailed explanation-1: -They originate at the epicentre of the earthquake and travel through the earth at amazing speeds. There are two types of body waves, namely, P waves. S waves.

Detailed explanation-2: -Both P and S waves travel outward from an earthquake focus inside the earth. The waves are often seen as separate arrivals recorded on seismographs at large distances from the earthquake. The direct P wave arrives first because its path is through the higher speed, dense rocks deeper in the earth.

Detailed explanation-3: -S waves are called secondary waves because they always arrive after P waves at seismic recording stations. Unlike P waves, S waves can travel only through solid materials. After both P and S waves have moved through the body of Earth, they are followed by surface waves, which travel along Earth’s surface.

Detailed explanation-4: -Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.

Detailed explanation-5: -Seismic waves can either be body waves or surface waves–but the full story is far more complex. Generally speaking, there are two types of waves: body waves (which comprise of P or Primary waves and S or Secondary waves) and surface waves (Love and Rayleigh).