What are the two types of body waves?
Body waves are of two types: Primary waves (also called P-waves, or pressure waves) and Secondary waves (S-waves, or shear waves).
What type of wave is a secondary wave?
elastic
What type of wave is a love wave?
In elastodynamics, Love waves, named after Augustus Edward Hough Love, are horizontally polarized surface waves. The Love wave is a result of the interference of many shear waves (S-waves) guided by an elastic layer, which is welded to an elastic half space on one side while bordering a vacuum on the other side.
What are the types of primary waves?
P and S waves travel through the planet Earth after an earthquake. Scientists studying the waves produced by earthquakes learned that Earth’s core has separate liquid and solid layers. S waves do not travel through liquid, but P waves do.
What is the main features of secondary waves?
Secondary waves cause the rocks they pass through to change in shape. These waves are the second fastest traveling seismic waves (after primary waves) and can travel through solids but not through liquids or gases. Also called shear wave S wave See Note at earthquake.
What is the characteristics of secondary wave?
The S-wave (secondary or shear wave) follows more slowly, with a swaying, rolling motion that shakes the ground back and forth perpendicular to the direction of the wave.
What is the characteristic of primary waves and secondary waves?
Both Body Waves and Surfaces waves comprise an earthquake, but the body waves arrive first. Primary are first, And Secondary are, well, second of course. P Waves are compressional which means they move through (compress) a solid or liquid by pushing or pulling similar to the way sound travels through the air.
What are the similarities between primary and secondary waves?
Primary waves, also known as P waves or pressure waves, are longitudinal compression waves similar to the motion of a slinky (SF Fig. 7.1 A). Secondary waves, or S waves, are slower than P waves….SF Table 7.1.
| Mineral | Dry sand |
|---|---|
| P wave velocity (m/s) | 400-1200 |
| S wave velocity (m/s) | 100-500 |
| Density (g/cm3) | 1.5-1.7 |
What is the difference between primary waves and secondary waves?
Primary waves travel faster, move in a push-pull pattern, travel through solids, liquids and gases, and cause less damage due to their smaller size. Secondary waves travel slower, move in an up-and-down pattern, travel only through solids, and cause more damage due to their greater size.
What is the similarities of body waves and surface waves?
The two main types of waves are body waves and surface waves. Body waves can travel through the earth’s inner layers, but surface waves can only move along the surface of the planet like ripples on water. Earthquakes radiate seismic energy as both body and surface waves.
What is the difference between P waves S waves and surface waves?
P waves can travel through solids, liquids, and even gases. 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. Surface waves travel only through solid media.
What do you mean by P waves and S waves?
P-waves are pressure waves that travel faster than other waves through the earth to arrive at seismograph stations first, hence the name “Primary”. These waves can travel through any type of material, including fluids, and can travel nearly 1.7 times faster than the S-waves.
Do P waves or S waves cause more damage?
An earthquake generates a series of seismic waves that travel through the interior or near the surface of the Earth. S waves are more dangerous than P waves because they have greater amplitude and produce vertical and horizontal motion of the ground surface. The slowest waves, surface waves, arrive last.
What are the 3 types of waves in an earthquake?
There are three major kinds of seismic waves: P, S, and surface waves. P and S waves together are sometimes called body waves because they can travel through the body of the earth, and are not trapped near the surface.
What are the major types of seismic waves?
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.
What is the characteristics of Rayleigh waves?
Rayleigh wave is a secondary wave characterized by low frequency and strong energy, propagating mainly along the interface of medium and rapid attenuation of energy with increase in interface distance. The same as reflected wave and refracted wave, Rayleigh wave also contain subsurface geological information.
What is the characteristics of Love waves?
Love waves are a major type of surface wave having a horizontal motion that is shear or transverse to the direction of propagation. The velocity of propagation of any body wave in any homogeneous, isotropic material is determined by the elastic moduli and densities of the material through which it passes.
What is the motion of primary waves?
Seismic P waves are also called compressional or longitudinal waves, they compress and expand (oscillate) the ground back and forth in the direction of travel, like sound waves that move back and forth as the waves travel from source to receiver. P wave is the fastest wave.
Which is faster P waves or S waves?
In P or compressional waves, the vibration of the rock is in the direction of propagation. P waves travel fastest and are the first to arrive from the earthquake. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
What is the motion of S waves?
S Wave—secondary body waves that oscillate the ground perpendicular to the direction of wave travel. They travel about 1.7 times slower than P waves. Because liquids will not sustain shear stresses, S waves will not travel through liquids like water, molten rock, or the Earth’s outer core.
Is Primary Wave also known as transverse wave?
For seismic waves through the bulk material the longitudinal or compressional waves are called P waves (for “primary” waves) whereas the transverse waves are callled S waves (“secondary” waves). S waves are transverse waves which involve movement of the ground perpendicular to the velocity of propagation.