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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.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
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Why would the shadow zone of an earthquake in japan be different from the shadow zone of an earthquake in California?
depends on the focus and epicenter depends on the focus and epicenter
Can earthquakes happen in Thailand?
Earthquakes happen everyday everywhere so yes thialand often has earth quakes.
The shadow zone is caused by what waves as they travel through Earth?
refraction
A zone of shallow earthquakes along normal faults is typical of?
Divergent plate boundaries.
What is the area of the earth that is unaffected by both P S waves?
The shadow zone
Which area of earth is unaffected by both p and s waves?
The Crust of the Earth
What is the difference in spreading center earthquakes and subduction zone?
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.
Why no seismic waves detected at the shadow zone?
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.
What does the shadow zone tell scientists about the earth core?
the shadow zone is a result of the core stopping
What does the shadow zone tell scientists about the earth's core?
the shadow zone is a result of the core stopping
What is an inactive zone?
An active zone is where earthquakes happen and inactive is where they don't.
Why do S waves not come to the surface beyond the shadow zone?
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.
What is a earthquake zone?
a place were earthquakes are found
Does a primary seismic wave have a larger shadow zone than a secondary wave?
no, an s-wave shadow zone is way larger
What is a shadow zone in Metroid prime hunters?
i finished the game, and never once did i ever come across anything called a shadow zone
What is the shadow zone caused by?
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.
Why would the shadow zone of an earthquake in japan be different from the shadow zone of an earthquake in California?
depends on the focus and epicenter depends on the focus and epicenter
