P-waves as they are able to travel through the liquid outer core of the earth, where as S-waves are not.
shadow zone
These are known as seismic waves.
This is caused by the density variations in the earth which cause the velocity of seismic waves to change as they move between them which in turn causes refraction of the waves. Further to this, the earth's outer core is a liquid which prevents seismic S-waves from travelling through it. This leads to a zone on the opposite side of the earth from an earthquake where S-waves are not detected.
the crust of the earth is swithching over each other
Surface waves, such as Love waves or Rayleigh waves, are the seismic waves that cannot be detected on the side of Earth opposite an earthquake. These waves travel along the Earth's surface and are responsible for causing most of the damage during an earthquake.
Earthquake waves are vibrations that travel through the Earth's crust when an earthquake occurs. There are three main types of earthquake waves: primary (P) waves, secondary (S) waves, and surface waves. These waves can cause the ground to shake and can be detected by seismographs.
An area on Earth's surface where no direct seismic waves from a particular earthquake can be detected.
When an earthquake occurs, seismic waves travel outward from the focus (the point where the earthquake originates) through the Earth's crust and mantle. These waves can be detected by seismometers and help scientists study the characteristics of the earthquake and the structure of the Earth's interior.
The band around the Earth where seismic waves are not detected is known as the seismic shadow zone. It exists between 105 and 140 degrees away from the earthquake epicenter. Seismic waves are not detected in this region due to the refraction and reflection of waves in the Earth's interior layers.
P-waves as they are able to travel through the liquid outer core of the earth, where as S-waves are not.
Primary waves (P-waves) are always the first waves detected during an earthquake. These are compressional waves that are the fastest seismic waves to travel through the Earth, causing the ground to move back and forth in the direction the wave is traveling.
S-waves, or shear waves, cannot travel through liquids, which is why they are not detected on the side of the Earth opposite the earthquake's epicenter. The Earth's outer core is liquid, and when an earthquake occurs, S-waves are blocked by this liquid layer, creating an S-wave shadow zone. As a result, no S-waves are recorded by seismometers located on the far side of the Earth from the earthquake's origin.
During an earthquake, seismic waves are released. These waves travel through the Earth and can be detected by seismographs. The main types of seismic waves are P-waves (primary waves), S-waves (secondary waves), and surface waves.
All waves are at the whim of the medium in which they travel, and the earth's molten iron core is a difficult one for seismic waves to travel through. The vibrations either bounce off or become to broken up by the intense heat and pressure.
shadow zone
P-waves.