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Where would earthquake damage be more - near the epicenter or away from the epicenter?
All other factors being equal, the seismic waves will be felt most strongly at or near to the epicentre of the earthquake.
Is data about an earthquake from two seismographic stations enough information to locate the epicenter?
From Science Explorer Prentice Hall Earth Science: " Geologists use seismic waves to locate an earthquake's epicenter. Seismic waves travel at different speeds. P waves arrive at a seismograph first, with S waves following close behind. To tell how far the epicenter is from the seismograph, scientists measure the difference between the arrival time of the P waves and S waves. The farther away an earthquake is, the greater the time between arrival of the P waves and the S waves." Did this help?
Do seismic waves need a medium to travel through?
Seismic, or earthquake waves travel through the earth. They may travel through our crust, which is rocky, or through the more fluid parts, like the mantle, but the medium is the earth.
Can you feel seismic waves if you are sitting on the floor during an earthquaKE?
maybe; the more powerful the earthquake, the more likely you are to feel it.
What is a seismic wave?
A seismic wave is mechanical energy, and it arises in earthquakes or other shifts that affect the crust of the earth. The energy is transferred through the crust and core in wavesthat we identify as P-waves and S-waves. A link is provided below for more information.
Where would earthquake damage be more - near the epicenter or away from the epicenter?
All other factors being equal, the seismic waves will be felt most strongly at or near to the epicentre of the earthquake.
Is data about an earthquake from two seismographic stations enough information to locate the epicenter?
From Science Explorer Prentice Hall Earth Science: " Geologists use seismic waves to locate an earthquake's epicenter. Seismic waves travel at different speeds. P waves arrive at a seismograph first, with S waves following close behind. To tell how far the epicenter is from the seismograph, scientists measure the difference between the arrival time of the P waves and S waves. The farther away an earthquake is, the greater the time between arrival of the P waves and the S waves." Did this help?
Is the epicenter the place where the strongest vibrations are felt?
The epicenter of an earthquake is the point on the Earth's surface above the focus or hypocenter which is the point within the Earth where the rupture occurs. As such the epicentre is the closest point to this and the seismic waves have had to travel through the smallest amount of material and so have undergone the least amount of attenuation (in this case attenuation is a reduction in amplitude of the seismic waves due to energy being lost by their movement or propagation through the Earth). However there can be some exceptions to this and please see the related questions for more information.
What is a vibration caused by an earthquake called?
seismic waves
What is primary seismic waves?
Primary seismic waves (also called P-waves) are a type of ground motion most commonly associated with earthquakes, though the waves are also caused by large explosions (nuclear tests) and would be expected from an asteroid impact. For a primary seismic wave, the motion of the ground is caused by a series of compressions and decompressions in which the ground at any point is moving on an axis which passes through the epicenter, while each individual wave front is spherical around the epicenter. Since solids (such as rock) are not readily compressible by significant amounts, the vibratory movement is very slight and the wave travels very rapidly. As a consequence, P-waves travel faster than Secondary waves (S-waves) also generated by the same seismic event. Consequently, P-waves are the source of the deep rumbling sound which can be heard at the beginning of an earthquake just before the far more destructive S-waves arrive.
Seismic waves are generated by movement along?
Seismic waves are generated by movement along faults. See the related question for more information.
What is the number of seismic stations need to find the epicenter of an earthquake?
Technically you just need one, but the more there are, the easier it is to locate the epicenter of the earthquake. The reason for this is that based on the timing of each of the three seismic waves that reach the station, the station can calculate a radius all around the station. So picture a circle with what the radius is around the station, another station will do the same thing, and there HAS TO BE an intersection of these circles somewhere, so that narrows down the location of the epicenter. Hope this makes sense.
What order do seismic waves come in?
First P waves, seismic waves that compress and expand the ground like an accordion. Then S waves, seismic waves that vibrate from side to side as well as up and down. And finally Surface waves, they move more slowly than P waves and S waves. But they can produce severe ground movements.
What type of seismic wave carries the most energy?
Secondary seismic waves travel slower than primary waves but they are much more destructive. Thus it carries more energy.
how do scientists determine earthquake location and how do they use this information?
Scientists use devices called Seismographs to determine the epicenter of an earthquake. If 3 or more seismographs detect an earthquake, seismic wave activity can be measured and quantified and then cross-referenced with other data (the primary and secondary seismic waves) to determine the earthquake's location.
How did mohorovicic discover interior layers of Earth?
He noticed that seismic waves changed velocity at measurable depths. The boundary where seismic waves increased in speed is the boundary between the crust and the mantle, where seismic waves start to travel through more dense rock.
How is the fact that P waves travel more quickly the S waves used to determine the distance of an earthquake's epicenter from a seismograph station?
Given the difference in arrival times, you can determine the distance from the epicenter.
