It describes the history, design, operation, and data format of the network, as well as the available data products and services from the U. How do old seismographs work? - heavy weight that is attached to a rope and a pen is attached to the heavy weight.A seismograph produces a graph-like representation of the seismic waves it receives and records them onto a seismogram A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. Seismographs operate on the principle of inertia. A simple seismometer that is sensitive to up-down motions of the earth can be understood by visualizing a weight hanging on a spring. NOTE: Out of Stock; self-printing only. location of transform fault or subduction zone). Seismograms typically record motions in three cartesian axes (x, y, and z), with the z axis perpendicular to the Earth's surface and the x- and y- axes parallel As nouns the difference between seismograph and seismometer. Now during an earthquake the base moves and the mass does not. The goal of a seismograph is to accurately record seismic waves during a quake. A seismograph is an instrument that is used to detect earthquakes and record their history. Seismometer. They are installed in the ground throughout the world and operated as part … There are four basic types of seismic waves; two preliminary body waves that travel through the Earth and two that travel only at the surface (L waves). By measuring the time interval between the arrivals of the P and S wave groups … is that seismograph is an instrument that automatically detects and records the intensity, direction and duration of earthquakes and similar events while seismometer is (geology) a device used by seismologists to detect and measure seismic waves and therefore locate earthquakes etc; a seismograph. Figure 1: The oldest available seismic recording in the world was made 137 years ago today in Japan with a seismograph invented by J.A. The plots are "magnified" according to the level of background or ambient seismic What's an earthquake? Earthquakes occur because of a sudden release of stored energy. Generally we can say that it consists of a mass which is attached to a fixed base. With our commercial seismograph w10, we detected earthquakes of 4.7191 atledouv ifargomsieS .emit fo noitcnuf a sa noitats gnirusaem a ta noitom dnuorg eht fo drocer a si tI . One problem with these mechanical systems was the limited range of ground motion that could be recorded - vibrations smaller than a line thickness and those beyond the physical range of the ink pen were lost.Yleensä seismometrin ilmaisemat maanvärähtelyt muutetaan sähköisiksi värähtelyiksi, jotka vahvistetaan ja … SEISMOMETER & SEISMOGRAM Definitions A seismometer is an instrument that measures and records motions of the ground, including those of seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. All data collected with SAGE instrumentation are The earliest seismoscope was invented by the Chinese philosopher Chang Heng in A. This animation shows both the movement of the three (3) basic waves (P, S, and surface) and the effect of the waves on a building. To circumvent these limitations we A seismograph is a machine used to measure the motion of the ground during an earthquake. The plots are designed to be appropriate for use Explosions and earthquakes both release a large amount of energy very quickly, and both can be recorded by seismic instruments.5 and is preceded and to some extent masked by a wave train from an explosion, in a local iron ore mine, which The seismograph is a complex instrument that requires specialized training to operate. They founded the Seismological Society of Japan, which funded the invention of seismographs. A seismograph is an instrument that measures and registers seismic waves that travel through the Earth as the outcome of an earthquake. The arrival of seismic waves of the quake is marked by red arrows (adapted from "Nature", 19 June 1884, pg. If you live in a city, you may have noticed the ground shaking when a big truck or a subway train rolls by. While that doesn't result in noticeable movements of the buildings, the arrivals are Volcano seismologists study several types of seismic events to better understand how magma and gases move towards the surface: Volcano-tectonic (VT) earthquakes represent brittle failure of rock, the same process that occurs along purely "tectonic" faults such as the San Andreas Fault. The widely recognised first teleseismic seismogram was recorded on April 17, 1889, in Potsdam, Germany by E.5 tuoba fo edutingam a dah dna napaJ ni saw ekauqhtrae ehT . The interface includes three panels: a list of earthquakes, a map, and a settings/options panel. Science in School 45: 38-42. This companion to the animation "Four-Station Seismograph network" shows the arrival of seismic waves through select wave paths through the Earth (P and S waves) and over the surface of the Earth. A traveltime curve is a graph of arrival times, commonly P or S waves, recorded at different points as a function of distance from the seismic source. Eight dragons snaked face-down along the outside of the barrel, marking the This pdf document provides a comprehensive guide for data users of the World-Wide Standardized Seismograph Network, a global network of seismological stations that operated from 1961 to 1996. This was a large urn on the outside of which were eight dragon heads facing the eight principal directions of the compass. It shows the horizontal ground movement in two perpendicular components. Seismograms from two stations, HFP (Fremont Peak; 9 miles SW of Hollister, 18 miles SSE of Gilroy) and BBG (Big Mountain; 7 miles ENE of Pinnacles, 26 miles N of King City Seismograph station and component, date and start time are recorded on the upper left of this paper. Science in School 23: 25-32. 2) The S wave is moving side to side in the direction of travel, so it has less effect bumping up from beneath the station than it does in its side to side motion. Online seismogram displays from various institutions around the U. The pen moves across a rotating paper roll recording the seismic waves. The ancient earthquake detector that puzzled modern historians. They founded the Seismological Society of Japan, which funded the invention of seismographs. Seismic waves are usually generated by movements of the Earth's tectonic plates but may We would like to show you a description here but the site won't allow us. The seismograph in Figure 12. Read more ». This video explores how this difference wave speeds results in staggered arrivals that, in turn, provides information about how far away the earthquake was from the seismograph. Edited by Andrew Olson, PhD, and Teisha Rowland, PhD, Science Buddies. A seismogram is a record of the ground motions caused by seismic waves from an earthquake.10 How a seismograph records earthquakes. Stand the box up on one of the smaller sides. Seismographs are often used in conjunction with other instruments to study earthquakes. The seismograph is bolted to the ground so during an earthquake it moves with the ground, whilst the weight and pen remain still. This companion to the animation "Four-Station Seismograph network" shows the arrival of seismic waves through select wave paths through the Earth (P and S waves) and over the surface of the Earth. As the ground shakes, the suspended pen records the shaking on the recording device. A seismograph or seismometer is the measuring instrument that creates the seismogram. Seismografin pääosat ovat varsinainen ilmaisin eli seismometri, kellokoneisto ja rekisteröintilaite. Figure 2: Travel-time curves for P-waves, S-waves, and L-waves.23. It is a record of the ground motion at a measuring March 8, 2018. After World War II, the horizontal pendulum Seismographs are securely mounted to the surface of the Earth, so when the ground starts shaking, the instrument's case moves. Seismograms About the Seismograms Examples Spectrogram Displays. One problem with these mechanical systems was the limited range of ground motion that could be recorded - vibrations smaller than a line thickness and those beyond the physical range of the ink pen were lost. For the seismic plots there is a 3 letter code added to the station suffix code that tells the seismologist information about the To record earthquakes with either a commercial or a homemade seismograph, you will need to be relatively close to their epicentres. The amplitude, period and distance are input to the magnitude calculator (MagCalc) to determine the magnitude. The first peak on a seismograph always corresponds to the P-wave or primary body wave. By measuring the time interval between the arrivals of the P and S wave groups seismologists is that seismograph is an instrument that automatically detects and records the intensity, direction and duration of earthquakes and similar events while seismometer is (geology) a device used by seismologists to detect and measure seismic waves and therefore locate earthquakes etc; a seismograph. Tie a SAGE facilitates seismological and geophysical research by operating and maintaining open geophysical networks and providing portable instrumentation for user-driven experiments.woleb elbat eht ni deliated sa ,0002 ,7 yaM no rehto hcae fo sruoh owt nihtiw derrucco ,1. The Global Seismogram Viewer automatically creates clear plots of seismograms of large earthquakes from stations around the world, displayed by distance from the earthquake. They travel through the interior of the Earth and can be measured with sensitive detectors called seismographs. An Illustrated Guide to Reading a Seismogram. At volcanoes, VT events can occur due to "normal" tectonic The M S7 scale used in China is a variant of M s calibrated for use with the Chinese-made "type 763" long-period seismograph. Milne invented the horizontal pendulum seismograph in the same year. Moment magnitude and energy magnitude scales Other magnitude scales are based on aspects of seismic waves that only indirectly and Live Real-Time California Seismograph and earthquake … Seismographs are instruments used to record the motion of the ground during an earthquake. Nuclear tests are very near the surface of the earth; all of the energy is released from a small volume surrounding the device. The seismometer is the internal part of a seismograph that responds to ground motions. The primary, or P, waves travel most quickly and are the first to be registered by the seismograph. Click on an event on the list or map for additional Figure 7. A clickable map of notable earthquakes since 2010, which shows interactive record section plots for each earthquake. Most earthquakes take place along faults in the upper 25 miles of the earth's surface when one side rapidly moves relative to the other side of the fault. Seismometer.39: A seismograph that had recorded an earthquake is beginning to record another earthquake, likely an aftershock. By Communications and Publishing September 21, 2014. They can be very simple like pendulums with suspended The Richter scale (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg-Richter scale, is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale". Ironically the instrument was originally installed for astronomical purposes. Additional seismogram: [noun] the record of an earth tremor by a seismograph. 132. several minutes B. When an earthquake occurred, one or more of the eight dragon-mouths would release a ball into the open mouth Kemudian, setelah kembali ke Inggris, ia mendirikan jaringan seismografi kecil di seluruh dunia menggunakan instrumen tersebut. The first seismoscope, a predecessor to the modern-day seismograph, was invented in China by Chang Heng Seismograph - Earthquake Detection, Recording, Analysis: If a common pendulum is free to swing in one direction and if the ground moves rapidly in the direction of freedom of the pendulum while the pendulum is motionless, the pendulum will tend to remain in place through inertia. Earthquake information for europe. The seismograms displayed are from a few of the seismograph stations routinely recorded by the Northern California Seismograph Network. What doesn't move, however, is a suspended mass inside the A seismograph is a recording device that scientists use to measure earthquakes. Each plot represents 24 hours of data from one station. A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. NOTE: Out of Stock; self-printing only. Geological Survey. To circumvent these limitations we A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. Project based on: The Regents of the University California (1995) Building Your Own Seismograph, Center for Science Education. The three (3) seismograms produced by a modern seismograph station show that the P wave is more visible on the vertical component and the S wave amplitude is larger on the horizontal components. For most of the seismograms given below, the distance is provided. Seismograms of common events are compiled to show the different seismic signals recorded by ground-shaking events. Active fault: A fault along which slip has occurred in recent geological time, or where earthquake foci are located.1 Seismometer. Meskipun seismograf awalnya dirancang untuk menemukan lokasi gempa bumi alami, ternyata seismograf juga memiliki banyak kegunaan lain, seperti eksplorasi minyak bumi, penyelidikan kerak bumi dan lapisan bawah, dan The epicenter of an earthquake is the point on Earth's surface at or above the earthquake's focus. Seismometers are specialized very low-noise accelerometers to detect seismic waves in planetary bodies. For example, PNT is the station code for Penticton, BC. Source Seismograph station and component, date and start time are recorded on the upper left of this paper.) eli maanjäristysmittari on maankuoren värähtelyjen ilmaisemiseen ja rekisteröimiseen käytettävä laite. Damage and Shaking. von Rebeur-Pacshwitz (Nature, 1889). The An instrument sensitive to tiny movements in the ground.4-9.e. Good seismographs are therefore isolated in seismograph stations and connected During an earthquake, vibrations caused by the breakage of rock along a fault zone radiate outward from the point of rupture. The output of such a device—formerly recorded on paper (see picture) or film, now recorded and processed … Seismograph Definition. You can find written directio A seismograph, or seismometer is known as an instrument which is used to record and detect earthquakes. The MLH scale used in some parts of Russia is actually a surface-wave magnitude. The epicenter of the earthquake is somewhere on the edge of that circle. seismograph, instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon. Seismometers used in earthquake studies are highly sensitive to ground movements, so that movements as small as 1/ A single seismograph pendulum works in only one direction, and cannot give a complete picture of wave motions from other directions. It would be hard to get the line straight! You can think of a seismograph as a machine that is kind of like your arm, holding the pen.
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The seismograms displayed are from a few of the seismograph stations routinely recorded by the Northern California Seismograph Network. The energy from any seismic activity 10. South Carolina. The seismograph creates a seismogram based on vibrations caused by moving a ruler. USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. The earthquake occurred in Kuril Islands on 7 May 1996 ( M = 5. Only horizontal components are normally used because vertical Cost. Seismogram. This was later revised and renamed the local magnitude scale, denoted as ML or M L . Explore sound waves by building your own loudspeaker: Anta A, Goiri E (2018) Hearing waves: how to build a loudspeaker. The most prominent onsets are the P- and S-waves, which arrived approximately 9. Figure 1— A seismograph has 3 sensors that record N-S, E-W, and vertical motion on 3 seismograms. Carefully cut the lid or flaps off the cardboard box. several seconds C. A seismometer is an instrument that responds to ground noises and shaking such as caused by quakes, volcanic eruptions, and explosions. The instrument used to record and measure these vibrations is called a seismograph. This energy has built up over long periods of time as a result of tectonic forces within the earth.10 (right) is oriented to measure vertical ground motion. Seismogram made at Kiruna, Sweden, by a short-period, vertical-component seismograph. This fact sheet provides an overview of the basic components of a seismometer and physical science principles behind its operation. The earthquake occurred in Kuril Islands on 7 May 1996 ( M = 5. Adult supervision is required when using power tools and taking measurements outdoors near traffic. The spectrogram is "read" from top to bottom (this Each station is part of the Canadian National Seismograph Network and has a unique identifier code of from 3 to 5 letters.They are usually combined with a timing device and a recording device to form a seismograph. When an earthquake occurs, the shockwaves of released energy that shake the Earth and temporarily turn soft deposits, such as clay, into jelly ( liquefaction) are called seismic waves, from the Greek 'seismos' meaning 'earthquake'. The instrument used to record and measure these vibrations is called a seismograph.eM raeN snoitatS dniF - rotinoM noitatS SIRI . Seismographs are instruments used to record the motion of the ground during an earthquake. Students learn about seismology by using a sample seismograph constructed out of common classroom materials. Seismografi (kreik. Seismographs of the early This companion to the animation "Four-Station Seismograph network" shows the arrival of seismic waves through select wave paths through the Earth (P and S waves) and over the surface of the Earth. Using a piece of string marked at the appropriate distance in degrees (measure along the equator) and a felt pen (water soluble ink), a circular arc is drawn on an inflatable globe using the seismograph station (in this case, station AMNO) as the center of the circle. Seismograms contain information on how strong an earthquake was, how long it lasted, and how far away it was. May 20, 2022. A seismograph is an instrument that is used to detect earthquakes and record their history. In 1880, Sir James Alfred Ewing, Thomas Gray, and John Milne—all British scientists working in Japan—began to study earthquakes. Three earthquakes, the largest having a magnitude of 3.By viewing the recordings from multiple stations, you can explore how ground motion changes at various locations relative to the earthquake.e. While that doesn't result in noticeable movements of the buildings, the arrivals are Real-time Spectrogram Displays. This fact sheet provides an overview of the basic components of a seismometer and physical science principles behind its operation. During an earthquake, seismic waves arrive at the closest seismograph WVT_BH2_IU_00. This data, collected by seismometers, measure motion generated by earthquakes, volcanic eruptions, and other seismic sources. A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions. A seismogram being recorded by a seismograph at Weston Observatory in Massachusetts A detail of the seismogram. The center of the circle will be the location of your seismograph. To overcome this problem, modern seismograph stations have three separate instruments to record horizontal waves - (1) one to record the north-south waves, (2) another to record east-west waves, and (3) a vertical A seismometer is the internal part of the seismograph, which may be a pendulum or a mass mounted on a spring; however, it is often used synonymously with "seismograph". The wiggly lines that are produced in a seismogram clearly show the different arrival times of P- and S-waves 17th April marks the 125 anniversary of the first ever recorded seismogram from a distant earthquake. May 20, 2022.02, the latter for internal structure modeling). The arrival of seismic waves of the quake is marked by red arrows (adapted from “Nature”, 19 June 1884, pg. The second major peak is the S-wave or secondary body wave. This fact sheet provides an overview of the basic components of a seismometer and physical science principles behind its operation.S. It is a fast traveling compressional wave that can move through any type of matter (solid, liquid, or gas). This energy has built up over long periods of time as a result of tectonic forces within the earth.7, h = 52 km) at an epicentral distance of 62°. Carefully poke two holes opposite from each other near the rim of the cup. This fact sheet provides an overview of the basic components of a seismometer and physical science principles behind its operation. 174) A seismogram is a graph output by a seismograph. Southern California - SCSN. In the graph the x-axis is time, while the y-axis measures the amplitude of the seismic wave. The spring and weight are suspended from Seismograph - Earthquake Detection, Monitoring, & Analysis: A seismograph records oscillation of the ground caused by seismic waves that travel from their point of origin through Earth or along its surface. Seismograms contain information that can be used to determine how strong an earthquake was, how long it lasted, and how far away it was. Introduction. The base of a mechanical seismograph moves beneath the hanging needle, and on the base rests paper. As the ground shakes, the suspended pen records the shaking on the recording device. Robert Butler briefly describes how to use seismic travel-time curves. A seismometer is a device that is sensitive to vibrations. is that seismograph is an instrument that automatically detects and records the intensity, direction and duration of earthquakes and similar events while seismometer is a device used by seismologists to detect and measure seismic waves and therefore locate earthquakes etc; a seismograph.srt This companion to the animation "Four-Station Seismograph network" shows the arrival of seismic waves through select wave paths through the Earth (P and S waves) and over the surface of the Earth.
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S. Seismographs are very sensitive and can detect earthquakes that occurred very far away (along with other things that make the ground shake, like volcanic eruptions or large explosions) that might be too faint for humans to feel.03 and 10. The terms seismograph and seismometer are often used interchangeably. The three (3) seismograms produced by a modern seismograph station show that the P wave is more visible on the vertical component and the S wave amplitude is larger on the horizontal components. The center of the circle will be the location of your seismograph.Utah/Yellowstone.0 on the Richter scale from 500 km away.7, h = 52 km) at an epicentral distance of 62°. 3) The seismograph principle involves mounting a recording device solidly to the earth and suspending a pen or writing instrument above it on a spring or pendulum. What doesn't move, however, is a suspended mass inside the A seismograph is a recording device that scientists use to measure earthquakes. This video will show you how to make your own seismograph, a scientific instrument used to measure the strength of earthquakes. While that doesn't result in noticeable movements of the buildings, the arrivals are The AS-1 Seismograph - Operation… Page 2 of 18 Figure 9. For most of the seismograms given below, the distance is provided. A seismogram is a graph output by a seismograph. Almost all seismometers are based on the principle of inertia, that is, where a suspended mass tends to remain still when the ground moves. Seismic waves are detected and measured with the seismograph (or seismometer). Figure 12. They are usually combined with a timing device and a recording device to form a seismograph. The movement at distant stations occurs at a microscopic scale. The plots are tablet-friendly and can also be printed for use in a classroom without computers. The seismograph is used to measure the amplitude and frequency of seismic waves. CLOSED CAPTIONING: A . The output of such a device—formerly recorded on paper (see picture) or film, now recorded and processed digitally—is a seismogram. A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. This animation shows both the movement of the three (3) basic waves (P, S, and surface) and the effect of the waves on a building. The seismograph is used to measure the amplitude and frequency of seismic waves. A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions.They are usually combined with a timing device and a recording device to form a seismograph. The goal of a seismograph is to accurately record seismic waves during a quake. It works on the principle of a pendulum: a heavy, inert mass with a certain resistance to movement (i.Seismographs are equipped with electromagnetic sensors that translate ground motions into electrical changes, which are processed and recorded by the instruments' analog or digital circuits. The P wave arrives at 23: 30: 14. A seismometer is the internal part of the seismograph, which may be a pendulum or a mass mounted on a spring; however, it is often used synonymously with "seismograph". A seismograph is an instrument we use to detect and record earthquakes. How a Seismograph WorksThis video is part of a free science course for homeschool students. The spectrograms show a record of the frequency content of ground motion at a particular seismograph station in Northern California during a 24-hour period. Seismographs are instruments used to record the motion of the ground during an earthquake. However, because the forces involved in each are very different, the waveforms that each creates look different. The spectrograms displayed are from a few of the seismograph stations routinely recorded by the Northern California Seismograph Network. The seismogram of a nearby small earthquake has a simple pattern, showing the arrival of P waves (longitudinal waves, which vibrate in the direction of propagation), S waves (transverse The Global Seismogram Viewer - Select an earthquake. Its appearance reflects the combined effects of the source, the propagation path, the characteristics of the recording instrument (see "Seismic Instrumentation" ), and the ambient noise due to the specific conditions Resource Files. This fact sheet provides an overview of the basic components of a seismometer and physical science principles behind its operation. 1) The vertical component shows the compressive P wave bumping up from beneath; it has very little horizontal movement. They are usually combined with a timing device and a recording device to form a seismograph. 174) A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. A seismometer is an instrument that records the shaking of the Earth's surface caused by … A seismometer is an instrument that responds to ground noises and shaking such as caused by quakes, volcanic eruptions, and explosions. The P wave propagates with a velocity of about six kilometers per second in rock, while the S wave is slower at four kilometers per second. The epicenter of the earthquake is somewhere on the edge of that circle. Seismogram seismogram is a graph output by a seismograph. The seismograph is a key tool in earthquake early warning systems. The amplitude, period and distance are input to the magnitude calculator (MagCalc) to determine the magnitude.Real-time Seismogram Displays. These seismogram displays depict ground motion recorded by seismograph stations in real-time, updated every few minutes.5 minutes apart. To overcome this problem, modern seismograph stations have three separate instruments to record horizontal waves - (1) one to record the north-south waves, (2) another to record east-west waves, and (3) a vertical The primary, or P, waves travel most quickly and are the first to be registered by the seismograph. Icelandic National Digital Seismograph Network (SIL or VI) The initial aims of the the network were to record seismic activity in the two main transform zones of Iceland, the South Iceland Seismic Zone and the Tjörnes Fracture Zone, with a focus on capability to locate small earthquakes for the purpose of monitoring fault initiation, mapping Station Monitor provides access to continuous, real-time ground motion from hundreds of locations around the globe. Figure 1 shows a typical example of a seismogram: Figure 1: Seismogram.1 Earthquake. Most earthquakes take place along … In 1880, Sir James Alfred Ewing, Thomas Gray, and John Milne—all British scientists working in Japan—began to study earthquakes. The different behavior of P, S, and surface waves explain how a single seismograph station can have 3 different seismograms: 1) The vertical component shows the compressive P wave bumping up from beneath; it has very little Preparation. Seismic waves. False. By IRIS Education and Public Outreach. March 8, 2018. The recording made by the seismograph is called a seismogram. A seismograph produces a graph-like representation of the seismic waves it receives and records them onto a seismogram (Figure below). A seismograph is a device for measuring the movement of the earth, and consists of a ground-motion detection sensor, called a seismometer, coupled with a recording system. - know how big and where earthquake was. As an analogy, think of trying to draw a straight line on a piece of paper while someone is holding your elbow and jiggling it back and forth. How long does it typically take for the first earthquake waves to arrive at a seismograph that is some distance away from the epicenter after the earthquake occurs A. Below each dragon head was a toad with its mouth opened toward the dragon. A seismogram is a graph output by a seismograph. In most seismographs, a pendulum is mounted within a sturdy framework and coupled to a motorised, optical, or electromagnetic data acquisition system. Read more ». A geologist monitors quake using seismograph (Picture: Bay Ismoyo/AFP/Getty) The largest earthquake in recorded history was the earthquake in Valdivia in Chile of May 1960 which measured 9. Seismic waves can be used to map the interior of planets and measure and locate quakes and other motions of the lithosphere (see also Chapters 10. The terms seismograph and seismometer are often used correspondingly; however, unlike the Seismograph, seismometer doesn’t possess the capacity to record the phenomena.D. 7/7. The suspended mass tends to stay still, due to its inertia, when the ground moves. Mikhail Bulgakov.