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A tiltometer measures the bulging of a volcano, which is how much the volcano is 'growing' wider and wider due to the magma chamber within a volcano filling with magma, if the tiltometer is reading that the volcano is bulging massively then this could be because it is about to errupt so it can be used to predict volcanic eruptions. A seismometer on the other hand measure tremors before an eruption due to magma movement and it can be used to predict earthquakes due to foreshocks.
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What is the difference between p and s waves arrival time?
As P-waves travel at a higher velocity than S-waves they arrive at a seismometer station before the S-waves. The difference between their arrival time can be used to calculate the distance from the seismometer station to the epicentre.
What is the difference between a seismograph and a seismometer?
A seismograph is a device that records vibrations and seismic waves caused by earthquakes, while a seismometer is a sensor that detects ground motion. Essentially, a seismometer is a component of a seismograph, which includes additional recording instruments.
What is the difference in arrival time between P and S waves equivalent to?
The time difference in arrival between P and S waves can help determine the distance to an earthquake epicenter. For each second of difference, the earthquake is roughly 7.5 kilometers away. So, a time difference of, for example, 10 seconds would indicate the earthquake is approximately 75 kilometers away.
What machine detects earthquakes?
A seismometer (the term seismograph may be used to describe a seismometer combined with an instrument for recording and displaying the amplitude and frequency of the seismic waves that the seismometer measures). Please see the related link.
Which instrument does not belong and why. Anemometer barometer thermometer seismometer?
The seismometer is the 'odd one out'. The other instruments measure factors to do with weather (wind speed, air pressure & temperature) - the seismometer measures movements in the Earth's crust.
What is the difference between p and s waves arrival time?
As P-waves travel at a higher velocity than S-waves they arrive at a seismometer station before the S-waves. The difference between their arrival time can be used to calculate the distance from the seismometer station to the epicentre.
What is the difference between a seismometer and a accelerometer?
A seismometer is the modern instrument used to measure seismic waves. A seismogram is a print out of the seismic data recorded by the seismometer. Usually in the form of the motion per unit time in all three dimensions.
Why are 3 seismometers required to locate exactly where an eartquake occurred?
The seismometer records the P and S-wave arrival times. P-waves travel faster through the earth than S-waves and so they arrive at the seismometer station before the S-waves and are recorded by the seismometer first. The difference in arrival time between the two types of seismic wave can be used to calculate the distance of the earthquake's epicentre from the seismometer. This can then be plotted on a map, by drawing a circle with a radius equal to the distance to the epicentre around the seismometer station. This is then repeated for the other two seismometer stations and the point where the three circles intersect is the location of the earthquakes epicentre.
What is the difference between s and p wave?
As P-waves travel at a higher velocity than S-waves they arrive at a seismometer station before the S-waves. The difference between their arrival time can be used to calculate the distance from the seismometer station to the epicentre.
When was Seismometer created?
Seismometer was created in 1880.
What is the difference between a seismograph and a seismometer?
A seismograph is a device that records vibrations and seismic waves caused by earthquakes, while a seismometer is a sensor that detects ground motion. Essentially, a seismometer is a component of a seismograph, which includes additional recording instruments.
What is the difference between the seismograph and seismometer?
The word seismograph is the old fashioned term for a seismometer. They both perform the same function (recording the amplitude, frequency and duration of seismic waves) however they record the data differently. Seismometers record the data digitally, whereas a seismograph plotted the data directly onto a roll of graph paper. Previous answer: A Seismometer is something used to record motions of the ground. Such as earthquakes and nuclear explosions. So they can measure the size of the explosions.
How many seismometer measurements are needed to determine an earthquake's epicenter?
Typically, at least three seismometer measurements are needed to determine an earthquake's epicenter. By analyzing the time difference of arrival of seismic waves at each monitoring station, scientists can triangulate the epicenter of the earthquake.
What is the difference in arrival time between P and S waves equivalent to?
The time difference in arrival between P and S waves can help determine the distance to an earthquake epicenter. For each second of difference, the earthquake is roughly 7.5 kilometers away. So, a time difference of, for example, 10 seconds would indicate the earthquake is approximately 75 kilometers away.
What happens to the time difference between primary and secondary waves as the distance traveled gets longer?
The time difference between primary (P) and secondary (S) waves becomes larger as the distance traveled by the waves increases. This is because P-waves travel faster than S-waves, so the time delay between their arrivals at a seismometer station increases with distance.
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!
What is another word for seismograph?
seismometer
