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.
accelerograph records ground acceleration.while seismograph records ground motion..
there is no difference because it is the same thing.
A seismograph that detects and records the activity of moment, while the seismogram is a written record for that!
I don't know im Canadian?
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.
Seismometer was created in 1880.
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 seismometer measures how bad and earthquake is and a Richter Scale measures hoe bad a hurricane is.
A seismometer.
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.
This value is related to the distance of the seismometer station from the earthquake's epicentre. The larger the difference in arrival times, the greater the distance.
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.
An accelerometer is an instrument used to measure acceleration.
Yes, it in fact has an accelerometer
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.
Seismometer was created in 1880.
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.
The difference in arrival times between P and S-waves as measured on a seismometer can be used to determine the distance to the origin.
http://en.wikipedia.org/wiki/Accelerometer
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.
No. The black box is a recorder, while an accelerometer feeds an instrument.