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Does the velocity of seismic waves generally decrease with depth in the Earth?
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What does seismic mean?
(not seismic, seismic wave)Seismic waves are waves of energy that travel through the earth.
What can be used to map the deep interior of the earth?
The deep interior of the Earth can be mapped using seismic waves. Natural earthquakes produce seismic signals which penetrate the Earth. Timing the arrival of these waves at various sites round the world, gives indication of the shape and the wave velocity in the Earths interior. Rather similar to the way a CAT scan can reveal the interior of a person.
What is seismic shaking-?
"Seismic" refers to an earthquake, so seismic shaking is the shaking motion of the earth (and things on it) caused by an earthquake. There are different waves that emanate from the hypocenter, or point of origin.
What is the main thing scientist observe in order to learn about the makeup of the earth's interior?
Scientists use seismic waves to study Earth's interior. Seismic waves travel through the Earth and can be detected far from their source.
Does a seismic wave require a medium?
Yes, earth is the medium
Does the Moho barrier separate the earth's crust and mantle?
Yes. It is called the Mohorovicic Discontinuity, where seismic waves increase in velocity.
What is Monorovicicdiscontinuity?
It is the boundary between the earth's crust and mantle, across which there is a sudden change in the velocity of seismic waves Often shortened to Moho
It separates the mantle and the crust?
The Mohorovičić discontinuity (the Moho) separates the mantle and the crust.moho
What does seismic?
(not seismic, seismic wave)Seismic waves are waves of energy that travel through the earth.
What does seismic mean?
(not seismic, seismic wave)Seismic waves are waves of energy that travel through the earth.
How do seismic waves move through earth?
How do scientists use seismic waves to study the Earth
What is seismic shifting?
Seismic shifting is the shifting of the earth's crustal plates, causing seismic activity.
What waves are detected first because they move so fast.?
There are three types of seismic waves released by an earthquake. Primary waves (P waves) are longitudinal or compressional waves and travel through the Earth's interior. They are first to arrive at a seismic station (velocity 5-8 km/s). Secondary waves (S waves) are a transverse or shear wave and move at a lower speed than that of primary waves (velocity 3-5 km/s). They arrive second at the seismic station. Finally, there are surface waves which as the name suggests travel along the Earth's surface, there are two main types (the Love wave and Rayleigh wave) and these are the slowest types of seismic waves (velocity 2.5 - 4.5 km/s) and hence arrive last at the seismic station.
What is seismic tomography?
Seismic imaging is when seismograms take recordings of the Earth's surface. That are mapped into representations of its interior properties. Seismic imaging investigates the physical characteristics that lie underneath the Earth's surface.
What can be used to map the deep interior of the earth?
The deep interior of the Earth can be mapped using seismic waves. Natural earthquakes produce seismic signals which penetrate the Earth. Timing the arrival of these waves at various sites round the world, gives indication of the shape and the wave velocity in the Earths interior. Rather similar to the way a CAT scan can reveal the interior of a person.
What part of earth does not receive seismic waves?
The epicenter does not recive seismic waves.
What earth event creates seismic waves?
earthquakes create seismic waves.
