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What instrument detects seismic waves?
A seismograph is one such instrument...there might be others.
What instrument is used to detect vibrations in an earthquake?
Seismometers. For information on how seismometers are used, please see the related question.
How do they use seismometers to locate the origin of the earthquake?
You can think of this in the same way that satellites work to find your location for the GPS in your car. An earthquake happens and it is picked up on 3+ seismometers. These seismometers measure the waves that the earthquake produced and the velocity at which they are traveling and you look at where all the seismometer calculations run together. You have the epicenter of your earthquake.
To pinpoint an earthquakes location scientist need information from how many seismometers?
They need 3
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.
What instrument detects seismic waves?
A seismograph is one such instrument...there might be others.
What has the author Samuel D Stearns written?
Samuel D Stearns has written: 'Applications of the coherence function in comparing seismometers' -- subject(s): Seismometers
What instrument is used to detect vibrations in an earthquake?
Seismometers. For information on how seismometers are used, please see the related question.
How do you know earthquakes happened?
Because they are detected by seismometers.
How many seismometers do you need to record an earthquake?
3
What are ways the scientists can learn about the earths mantle?
seismometers
How many seismometers do you need at a given place to fully record the motions arising from earthquake waves?
You need a seismometer for each axis of motion. As such it takes three seismometers.
How do they use seismometers to locate the origin of the earthquake?
You can think of this in the same way that satellites work to find your location for the GPS in your car. An earthquake happens and it is picked up on 3+ seismometers. These seismometers measure the waves that the earthquake produced and the velocity at which they are traveling and you look at where all the seismometer calculations run together. You have the epicenter of your earthquake.
What type of technology is used to predict earthquakes and volcanos?
seismometers and seismographs
What are the tracings of a seismometers called?
The trace produced by a seismograph is called a seismogram.
What frequency does seismometers uses?
Seismometers are interested in the vibrations of the Earth, for different reasons. Some may be interested in the geological process. Some in the response of buildings and other structures. Seismometers can respond to very low frequencies, down towards 1 milli-Hertz. And up to a few hundred Hertz. These machines do not 'use' frequencies, they merely record what is naturally happening.
How do you know about micro-earthquakes if they are not felt?
They are detected using seismometers. See the related links.
