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 shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
depends on the focus and epicenter depends on the focus and epicenter
Earthquakes happen everyday everywhere so yes thialand often has earth quakes.
refraction
Divergent plate boundaries.
The shadow zone
The Crust of the Earth
Spreading center earthquakes are always shallow, subduction zone earthquakes can be very deep.Spreading center earthquakes are typically of lower magnitude than subduction zone earthquakes.
In shadow zone, seismograph does not record signals. For P-wave it is b/w 104-145 degress.These earthquake waves exhibit same properties as other waves like reflection, refraction etc.As core has denser matter so P-waves will bend inward and hences they will form a shadow zone. S-waves don't pass through liquid phase, core. So, shadow zone is larger here.
the shadow zone is a result of the core stopping
the shadow zone is a result of the core stopping
An active zone is where earthquakes happen and inactive is where they don't.
S waves dont even reach the shadow zone because they are unable to penetrate the outer core. They are basically stopped by the shadow zone.
a place were earthquakes are found
no, an s-wave shadow zone is way larger
i finished the game, and never once did i ever come across anything called a shadow zone
A shadow zone is caused by an earthquake. It is a region that is far away from the epicenter of the earthquake where seismic activity is minimized or not present.
depends on the focus and epicenter depends on the focus and epicenter