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Why do the three types of waves of an eathquake all arrive at a seismograph at different times?
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Why three seismograph stations are needed to determine the location of an epicenter?
Three seismograph stations are needed to determine the location of an epicenter because each seismograph can determine distance to the epicenter but not direction. The point where the three circles intersect is the epicenter of the earthquake. +++ Focus - not epicentre, which is the point of maximum movement on the surface above the slip itself.
How many seismograph reading are needed before an earthquake's epicenter can be located?
three
How many seismograph-station readings are needed to pinpoint the epicenter of an earthquake?
Three
Do seismographs monitor earthquakes?
Scientists use seismographs to monitor earthquakes. Though, a seismograph merely registers an earthquake. By using at least three seismograph stations, and using triangulation, the epicentre of the earthquake is able to be plotted.
Can a seismograph measure vertical waves or just horizontal waves?
A seismograph is the output of a seismometer. Seismometers can be oriented to measure vertical, north-south, and east-west motion (or anything in-between if it were so desired). Some modern seismometers include three instruments in a single unit for this purpose.
How many different countries have invented their own seismograph?
At least three. China, America, and Japan.
Why three seismograph stations are needed to determine the location of an epicenter?
Three seismograph stations are needed to determine the location of an epicenter because each seismograph can determine distance to the epicenter but not direction. The point where the three circles intersect is the epicenter of the earthquake. +++ Focus - not epicentre, which is the point of maximum movement on the surface above the slip itself.
How many seismograph reading are needed before an earthquake's epicenter can be located?
three
What are the fewest number of seismograph stations that are needed to locate the epicenter of an earthquake?
three
What are the three scales that are used for measuring earthquakes?
The magnitude, Richter scale, and seismograph.
How many seismograph-station readings are needed to pinpoint the epicenter of an earthquake?
Three
What are the instrument used to record seismic waves?
A seismometer (or the older device called a seismograph) records the seismic waves from earth tremors.+++There is a difference there: a seismometer would simply register instant vibration; a seismograph records the vibrations with time so shows the whole picture.
Do seismographs monitor earthquakes?
Scientists use seismographs to monitor earthquakes. Though, a seismograph merely registers an earthquake. By using at least three seismograph stations, and using triangulation, the epicentre of the earthquake is able to be plotted.
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If using only one seismograph what would it measure?
It would depend on the size of the quake. It is certainly possible to use only one seismograph, it would just be impossible to use triangulation to find the epicenter of the tremble, as it requires at least three.
Why are seismographs stations needed to determine the location of an epicenter?
Three seismograph stations are needed to determine the location of an epicenter because each seismograph can determine distance to the epicenter but not direction. The point where the three circles intersect is the epicenter of the earthquake. +++ Focus - not epicentre, which is the point of maximum movement on the surface above the slip itself.
What are three ways in which geologist use seismograph?
They map faults, detect changes along faults, and develop a method of predicting earthquakes
