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 send out seismic energy as both body and surface waves.
What are the 2 sub types of P waves?
| P-waves travel through materials with rigidity and/or compressiblity, and density | greater rigidity faster P-waves | greater compressibility faster P-waves | greater density slower P-waves |
|---|
What are the 2 types of seismic waves quizlet?
vibrations that travel through Earth carrying the energy released during an earthquake. Three types of seismic waves are
P waves, S waves, and surface waves
.
What are Love and Rayleigh waves?
Two
types of surface waves
, known as Love waves and Rayleigh waves after their discoverers, propagate near the Earth’s surface. Rayleigh waves result from a combination of P and SV motions, while Love waves result from SH waves trapped near the surface. Due to their slower rate of decay, surface waves can circle.
What are two main differences between P and S seismic waves?
Because of their wave movement, P waves travel through any kind of material, whether it is a solid, liquid or gas. On the other hand,
S waves only move through solids and are stopped by liquids and gases
.
Are P waves faster than S waves?
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.
What are P and S waves quizlet?
P Waves.
seismic wave
that moves rock particles back-and-forth in the same direction that the wave travels. S Waves. seismic wave that moves rock particles at right angles to the direction of the wave.
Where are seismic waves most powerful?
Seismic waves can be classified into two basic types: body waves which travel through the Earth and
surface waves
, which travel along the Earth’s surface. Those waves that are the most destructive are the surface waves which generally have the strongest vibration.
What is difference between P and S waves?
| P waves S waves | The first wave to hit seismographs Second waves to hit seismographs |
|---|
What types of waves are P-waves?
A P wave (primary wave or pressure wave) is one of the
two main types of elastic body waves
, called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph.
Which is faster Rayleigh or Love wave?
Love waves travel with a lower velocity than P- or S- waves, but
faster than Rayleigh waves
. These waves are observed only when there is a low velocity layer overlying a high velocity layer/ sub–layers.
Is Love waves faster than Rayleigh waves?
At global as well as at regional scale,
the lithosphere appears faster to Love waves than
to Rayleigh waves. This Love–Rayleigh discrepancy can be modelled by introducing transverse isotropy in the upper mantle.
Do Love or Rayleigh waves cause more damage?
Love waves cause more damage than Rayleigh waves
, but both are highly destructive because they occur near the surface of the Earth.
What are the similarities and differences of P-waves and S waves?
P waves can travel through liquid and solids and gases, while S waves only travel through solids
. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves.
Where do P-waves travel the fastest?
Because the
earth’s mantle
becomes more rigid and compressible as the depth below the asthenosphere increases, P-waves travel faster as they go deeper in the mantle. The density of the mantle also increases with depth below the asthenosphere. The higher density reduces the speed of seismic waves.
What are the 2 types of body waves and describe them?
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.
