EVERYDAY SCIENCE

Detailed explanation-1: -S Waves. The second type of body wave is the S wave or secondary wave, and are easy to remember because they’re the second wave to arrive after an earthquake. An S wave is about 1.7 times slower than a P wave. The biggest difference is that S waves can’t move through liquids.

Detailed explanation-2: -Body waves are of two types: Primary waves (also called P-waves, or pressure waves) and Secondary waves (S-waves, or shear waves). P-waves are compression waves. They can propagate in solid or liquid material. S-waves are shear waves.

Detailed explanation-3: -There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.

Detailed explanation-4: -An example of an S wave is wiggling or shaking a rope which is tied down at one or both ends. 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.

Detailed explanation-5: -Body waves are of two types: compressional or primary (P) waves and shear or secondary (S) waves. P-and S-waves are called “body waves” because they can travel through the interior of a body such as the Earth’s inner layers, from the focus of an earthquake to distant points on the surface.