Acalashyviz
Answered

1. What are seismic waves? And how do these wave travel on the earth?
2. Differentiate Body wave and Surface wave.
3. Among the seismic waves, which wave travel fastest? which wave travel slowest?
4. Explain how seismic waves propagate ​

Sagot :

Unnieyanesviz

1.There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves.

2.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.

3. Surface waves

There are two types of body waves: P-waves travel fastest and through solids, liquids, and gases; S-waves only travel through solids.

4.Seismic wave propagation is a ground motion phenomenon that relates to the passage of body waves, including compression waves and shear waves, radially from the source of earthquake energy release (hypocenter) into the surrounding rock and soil medium.

JuddyAbbottviz

Answer:

  1. A seismic wave is an elastic wave generated by an impulse such as an earthquake or an explosion. Seismic waves may travel either along or near the earth's surface (Rayleigh and Love waves) or through the earth's interior (P and S waves).
  2. 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. 
  3. Two types of body waves: P-waves travel fastest and through solids, liquids, and gases; S-waves only travel through solids. Surface waves are the slowest, but they do the most damage in an earthquake.
  4. Seismic waves can be generated by a sudden release of energy such as an earthquake, volcanic eruption, or chemical explosion. There are several types of seismic waves, often classified as body waves, which propagate through the volume of the Earth, and surface waves, which travel along the surface of the Earth.