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The difference in arrival of P and S waves on a seismogram tells seismologists how far away the away the source of the quake is from the recording station.
A little more detail!
P-waves travel more quickly through the Earth than S-waves. As such the further away the seismometer is from an earthquake epicentre the greater the amount of distance the S-waves lag behind the P-waves.
The same is true for lightning. The flash is visible light which is a form of electromagnetic wave and travels so quickly (approx. 300x106 m/s) that you see it (at what may as well be described as) instantly. However sound waves travel much more slowly (approx. 330 m/s in air), roughly a million times slower than light. As such there is a significant lag time between seeing the flash and hearing the resultant clap of thunder.
What else can I help you with?
Is it true that the closer an earthquake the greater the time difference between the arrival of P-waves and the arrival of S-waves?
Yes, that is correct. The time difference between the arrival of P-waves and S-waves increases as the earthquake epicenter gets closer to the seismograph. P-waves are faster, so they arrive first, followed by the slower S-waves.
What are the steps of the S-P time method?
The S-P time method is used to determine the distance to an earthquake epicenter. The first step is to measure the time difference between the arrival of the primary (P) waves and the secondary (S) waves at a seismograph station. The second step is to use a travel-time graph to determine the distance to the epicenter based on the time interval between the P and S waves. Finally, by using data from at least three seismograph stations, the exact location of the earthquake epicenter can be triangulated.
How could u tell were the epicenter is located with 2 seismograph readings?
The difference between the two seismograph readings could tell you where the epicenter is located.
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?
The time difference between the arrival of P waves and S waves at a seismograph station is used to determine the distance of an earthquake's epicenter. By measuring this time lag and knowing the speed at which each wave travels through the Earth's interior, scientists can calculate the distance the waves traveled to reach the station. The farther apart the arrival times of P and S waves, the greater the distance of the epicenter from the station.
Where is the epicenter of an earthquake if the arrival time difference between P and S waves is zero?
Your standing on it! P-waves travel faster than S-waves through the Earth. As such the further away a seismometer station is from the epicentre of an Earthquake, the larger the difference between arrival times will be. By the same logic this means that the closer you get to the epicentre, the smaller the difference in arrival time will be until your at the epicentre when the difference will be zero!
The distance between an earthquake epicenter and the location of a seismograph can be calculated because?
The time it takes for seismic waves to reach the seismograph can be used to calculate the distance between the epicenter and seismograph. By knowing the average speed of seismic waves in the earth, the time difference between the arrival of P- and S-waves can be used to determine the distance.
Is it true that the closer an earthquake the greater the time difference between the arrival of P-waves and the arrival of S-waves?
Yes, that is correct. The time difference between the arrival of P-waves and S-waves increases as the earthquake epicenter gets closer to the seismograph. P-waves are faster, so they arrive first, followed by the slower S-waves.
Difference between seismograph and seismogram?
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How do you calculate the distance from an earthquake?
The distance from an earthquake epicenter can be calculated using the time difference between the arrival of P-waves and S-waves at a seismograph station. By measuring this time lag and using the known velocity of seismic waves through the Earth's interior, the distance can be estimated. The greater the time lag between the arrival of the P-wave and S-wave, the farther the seismograph station is from the earthquake epicenter.
Geologists use the difference in the arrival times of P waves and S waves at a seismograph to determine?
the distance to the earthquake's epicenter. P waves, or primary waves, travel faster than S waves, or secondary waves, so the interval between their arrival times can be used to calculate the distance the seismic waves have traveled. By measuring this time difference at different seismograph stations, geologists can triangulate the epicenter of the earthquake.
What are the steps of the S-P time method?
The S-P time method is used to determine the distance to an earthquake epicenter. The first step is to measure the time difference between the arrival of the primary (P) waves and the secondary (S) waves at a seismograph station. The second step is to use a travel-time graph to determine the distance to the epicenter based on the time interval between the P and S waves. Finally, by using data from at least three seismograph stations, the exact location of the earthquake epicenter can be triangulated.
How could u tell were the epicenter is located with 2 seismograph readings?
The difference between the two seismograph readings could tell you where the epicenter is located.
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?
The time difference between the arrival of P waves and S waves at a seismograph station is used to determine the distance of an earthquake's epicenter. By measuring this time lag and knowing the speed at which each wave travels through the Earth's interior, scientists can calculate the distance the waves traveled to reach the station. The farther apart the arrival times of P and S waves, the greater the distance of the epicenter from the station.
How is the fact that P-waves travel faster that S-waves used to determine the distance of an earthquake epicenter from an seismograph station?
Using the difference in their arrival times and an estimate of their velocity of propagation you can calculate the distance of the earthquake epicentre from the seismometer recording station. If you do this from three or more different seismometer stations you can triangulate it's position. For more information please see the related question.
How do scientists find the distance of an epicenter from a seismograph?
They measure the difference in arrival times of P and S seismic waves as measured on a seismograph. From this (based on an estimate of their relative velocities) they can calculate the distance of the seismometer from the earthquakes epicentre using the following equation:Distance to epicentre (km) = Time Difference (s) x (VP - VS) / (VS x VP)Where:VP = P-wave velocity (km/s)VS = S-wave velocity (km/s)
The first s-wave arrive at a seismograph station 11 minutes after an earthquake occurred how long after the arrival of the first p-wave did the first s-wave arrive?
The P-wave generally arrives before the S-wave during an earthquake. The time difference between them can help determine the distance to the earthquake's epicenter. In this case, if the S-wave arrived 11 minutes after the earthquake, you would need to calculate the time difference between the arrival of the P-wave and the S-wave to determine how long after the P-wave arrival the S-wave arrived.
What is the difference between a seimograph and seimogram?
A seismograph that records vibrations, and movements in the earth while a seismogram is a record written by a seismograph in response to groung motions by earthquakes, or explosions. I am studying this in school in science so I know this is the answer!:)
