explain what a seismograph is
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- Definition. A seismograph, also sometimes called a seismometer, is an instrument that measures and records the seismic waves that move through the earth as the result of an earthquake.
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Exploration Arguably the biggest breakthrough in petroleum and natural gas exploration came through the use of basic seismology. Seismology refers to the study of how energy, in the form of seismic waves, moves through the Earth’s crust and interacts differently with various types of underground formations. In 1855, L. Palmiere developed the first ‘seismograph’, an instrument used to detect and record earthquakes.
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What Does a Seismograph Measure? Seismographs measure vibrations produced during earthquakes. All earthquakes, regardless of size, generate vibrations deep within the earth. These vibrations are caused by the breaking and fracturing...
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- An earthquake is measured using a machine called a seismograph. The magnitude of an earthquake was measured at one time using the Richter magnitude scale., but that has been s … uperseded by the moment magnitude scale (MMS).
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- A machine does exist to predict earthquakes, and it is called a  seismograph. Because it is a very sensitive instrument, it can pick  up slight disturbances before a major m … ovement occurs. 1 person found this useful.
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CONTRIBUTIONS Seismograph During the Han Dynasty an astronomer invented this earthquake device to give warning of an earthquake. The seismograph looks like a bronze vase covered with dragons and toads. Inside the vase swung a long metal pendulum. Outside the vase, eight dragons' heads were mounted onto its sides.
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- Seismometers (in Greek seismos = earthquake and metero = measure) are used by seismologists to measure and record the size and force of seismic waves.By studying seismic waves, geologists can map the interior of the Earth, and measure and locate earthquakes and other ground motions.est Answer: Seismographs and other kinds of seismometers, generally, although there is a pretty wide variety of those and how they function. The old fashioned kind have a weight suspended pendulum-style that remains stationary, and have a slowly rolling drum or roll of paper (usually) underneath the pendulum.
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How Are Earthquakes Measured? A network of geological monitoring stations, each with instruments that measure how much the ground shakes over time called seismographs allow scientists to calculate an earthquake's time, location and magnitude. Seismographs record a zigzag trace that shows how the ground shakes beneath the instrument.
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What is a Seismograph? - Definition, History & Facts How a Seismograph Works. The idea behind a seismograph is fairly simple. A basic seismograph includes a solid base and a heavy weight suspended from a spring over the base. A pen hangs from the weight and a rotating drum with paper sits below it on the base. The tip of the pen touches the drum.
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Shadow zone Seismic shadow zone (from USGS). A seismic shadow zone is an area of the Earth 's surface where seismographs cannot detect an earthquake after its seismic waves have passed through the Earth.When an earthquake occurs, seismic waves radiate out spherically from the earthquake's focus.eismic shadow zone (from USGS). A seismic shadow zone is an area of the Earth 's surface where seismographs cannot detect an earthquake after its seismic waves have passed through the Earth.
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Cochise College Student Papers in Geology Seismologists use two main devices to measure an earthquake: a seismograph and a seismoscope. The seismograph is an instrument that measures seismic waves caused by an earthquake. The seismograph has three main devices, the Richter Magnitude Scale, the Modified Mercalli Intensity Scale, and the Moment-Magnitude Scale.
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- These are all the seismic waves that the seismograph has recorded. Most of these waves were so small that nobody felt them. These tiny microseisms can be caused by heavy traffic near the seismograph, waves hitting a beach, the wind, and any number of other ordinary things that cause some shaking of the seismograph.ost of these waves were so small that nobody felt them. These tiny microseisms can be caused by heavy traffic near the seismograph, waves hitting a beach, the wind, and any number of other ordinary things that cause some shaking of the seismograph.
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How Earthquakes Work The most common standard of measurement for an earthquake is the Richter scale, developed in 1935 by Charles F. Richter of the California Institute of Technology. The Richter scale is used to rate the magnitude of an earthquake -- the amount of energy it released.This is calculated using information gathered by a seismograph. The Richter scale is logarithmic, meaning that whole-number jumps indicate a tenfold increase. In this case, the increase is in wave amplitude.he Richter scale is used to rate the magnitude of an earthquake -- the amount of energy it released. This is calculated using information gathered by a seismograph. The Richter scale is logarithmic, meaning that whole-number jumps indicate a tenfold increase.
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- A network of seismometers constantly monitors movements of the Earth's crust. When an earthquake occurs, seismic waves travel out from its epicenter, through the crust, and are detected by the seismometers.
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Seismometer Another type of seismometer is a digital strong-motion seismometer, or accelerograph. The data from such an instrument is essential to understand how an earthquake affects man-made structures, through earthquake engineering.
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Earthquake The study of earthquakes is called seismology. Scientists measure and record earthquakes using devices called seismometers. The size of an earthquake is measured according to its magnitude (the size of the shock waves and the energy produced) or its effects.
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Titan's Underground Ocean PASADENA, Calif. -- Data from NASA's Cassini spacecraft have revealed Saturn's moon Titan likely harbors a layer of liquid water under its ice shell.
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Seismic wave Surface waves travel a little slower than S waves (which, in turn, are slower than P waves) so they tend to arrive at the seismograph just after the S waves. For shallow earthquakes (earthquakes with a focus near the surface of the earth), the surface waves may be the largest waves recorded by the seismograph.
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- 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.
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- A seismometer is the scientific instrument used to detect earthquakes. Signals received from seismometers are recorded and this allows scientists to calculate the size (amount of energy released) of an earthquake, that is, its magnitude.
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What instruments detect earthquakes? Report Abuse. Seismometers (in Greek seismos = earthquake and metero = measure) are used by seismologists to measure and record the size and force of seismic waves. By studying seismic waves, geologists can map the interior of the Earth, and measure and locate earthquakes and other ground motions.est Answer: Seismographs and other kinds of seismometers, generally, although there is a pretty wide variety of those and how they function. The old fashioned kind have a weight suspended pendulum-style that remains stationary, and have a slowly rolling drum or roll of paper (usually) underneath the pendulum.
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Earthquake Glossary Earthquake Glossary. seismogram A seismogram is a record written by a seismograph in response to ground motions produced by an earthquake, explosion, or other ground-motion sources. Questions or comments?
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How does a seismograph work? What is the Richter scale? You could make a very simple seismograph byhanging a large weight from a rope over a table. By attaching apen to the weight and taping a piece of paper to the table so thatthe pen can draw on the paper, you could record tremors in theEarth's crust (earthquakes). If you used a roll of paper and amotor that slowly pulled the paper across the table, you wouldbe able to record tremors over time.
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How does a seismograph work? What is the Richter scale? A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to accurately record the motion of the ground during a quake. If you live in a city, you may have noticed that buildings sometimes shake when a big truck or a subway train rolls by.he main problem that must be solved in creating a seismograph is that when the ground shakes, so does the instrument. Therefore, most seismographs involve a large mass of some sort. You could make a very simple seismograph by hanging a large weight from a rope over a table.
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Frequently Asked Earthquake Questions A scale for determining the size of an earthquake from the recording of earthquake waves made on a seismograph. The maximum height of the visible recording is adjusted for the distance from the instrument to the earthquake. This is not a physical scale (in other words, one cannot look at or hold the “Richter Scale”).
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seismometer Definition of seismometer. : a seismograph measuring the actual movements of the ground (as on the earth or the moon)