The following formula shows a relationship between the amount of energy released and the Richte number. Mom, Ive got power! On the other hand, intensity is a measure of the effects produced by an earthquake on people, animals, structures and terrain in a particular area. Traditionally the intensity is a subjective measure derived from human observations and reports of felt shaking and damage. Preparing your home BEFORE an earthquake is important to your safety. The Richter scale measures the magnitude of earthquakes, and the Mercalli scale measures their intensity. answer choices. each whole number increase in magnitude represents a tenfold increase in measured amplitude; as an estimate of energy, each whole number step in the magnitude scale corresponds to the release of about 31 times more energy than the amount . If a feature truncated by a strike-slip fault is displaced to the left on the other side of the fault, what type of fault is it? Know exactly how much you and your friends should tip, every time. His original definition held only for California earthquakes occurring within 600 km of a particular type of seismograph (the Woods-Anderson torsion instrument). There are two ways by which we can measure the strength of an earthquakeand magnitude is the measure of released and is determined based on instrumentally derived information it's correlates with the amount of total energy released at the earthquake points of origin and is reported innumbers& on the other hand is the description of how weak or strong the shaking is it's generally higher near . Let's assume that you remember an earthquake a couple of years ago, which has a magnitude of 7.1. What types of building are most vulnerable to high-frequency P and S waves close to the epicenter of an earthquake? What is the Richter scale of an earthquake? This cookie is set by GDPR Cookie Consent plugin. The most important thing to remember is the fact that in the Richter scale, wave amplitudes are taken into account. Now, scientists use earthquake measurements that describe the physical effects of an earthquake rather than measurements based only on the height of a waveform recording. To get a better idea of the strength of the shaking and damage, the Moment Magnitude Scale was developed to capture all the different seismic waves from an earthquake to worldwide seismic networks. You may be wondering how "big" is that? A better measure of the size of an earthquake is the amount of energy released by the earthquake, which is related to the Richter Scale by the following. The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes. Perhaps the most famous is the Richter magnitude scale although this has since been replaced by the moment . The measurement explains the severity of earthquake shaking and its effects on people and their environment. The earthquake magnitude is a measure of the amount of seismic energy released by it, so it is a quantitative scale. But opting out of some of these cookies may affect your browsing experience. What scales are used in determining the magnitude and the intensity of an earthquake? At night, some awakened. The intensity, as expressed by the Modified Mercalli Scale, is a subjective measure that describes how strong a shock was felt at a particular location. A fault where the slip is predominantly horizontal and parallel to the fault plane. For instance, an earthquake measuring 7.0, is 10 times more powerful than one measuring 6.0. Unstable objects overturned. The Richter Scale Richter in 1934. A(n) _______ is the vibrations we feel when sudden movement occurs along a fault. This figure demonstrates the sense of motion of which type of seismic wave? The greater the length of fault rupture, the _______ the frequency of the seismic waves it produces. An M6 earthquake releases 7.8 x 10 13 joules, and an M7 radiates 2.1 x 10 15 joules. Loss of use coverage covers the costs of temporary shelter and additional living expenses so that families can get back on their feet quicker. Magnitude 9 earthquakes are rare. To calculate the moment magnitude, seismologists need to know the seismic moment, M0M_0M0: The seismic moment is found by multiplication of three physical parameters rigidity, area, and slip: \mu Shear modulus of the rocks (dyne/cm2), which is the rock's resistance to bending (rock rigidity). Don't stop under bridges, overpasses, trees, or power lines. The original Richter scale formula, that is used to calculate the magnitude of any earthquake, is as follows: M L = log 10A log 10A 0() where, M L is the magnitude, A is the maximum excursion or the greatest deviation on the Wood-Anderson seismograph, and A 0 depends on the distance between the seismic station and epicenter (). Tamang sagot sa tanong: 1. Some well-built wooden structures destroyed; most masonry and frame structures destroyed with foundations. P waves can travel through air, where they take the form of _______ waves. If we sum all of the energy release from all of the earthquakes over the past ~110 years, the equivalent magnitude ~ Mw9.95. 1: Magnitude measures the energy released by the earthquake, while intensity measures the amount of damage. cannot travel through fluids but can travel through solid material Moreover, the energy released by each earthquake, measuring differently, increases 31.6 times the amount of energy released, per measure, while each increase of 0.2, results in doubling the energy released. The shaking from the M6.7 Northridge, CA earthquake was more intense and covered a wider area than the slightly larger M6.8 Nisqually, WA earthquake. Seismic waves slow down in soft sediments, which increases their amplitude. Magnitude measures the amount of seismic energy released at the source of the earthquake and is usually measured by seismographs. 11.3 Measuring Earthquakes. The intensity of the shaking resulted by the earthquake at a specific location is measured. the bigger the earthquake, the greater the shaking of Earth. Earthquake _______ is a measure of the energy released during an earthquake. An earthquake intensity scale consists of a series of key responses that includes people awakening, movement of furniture, damage to chimneys and total destruction. 0 onwards. Spreading centers are linked to each other or to subduction zones by ______ faults which allow the rigid lithosphere to move over a curved surface. Answers: 3 See answers. magnitude. 12201 Sunrise Valley Drive Reston, VA 20192, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands), How much bigger is a magnitude 8.7 earthquake than a magnitude 5.8 earthquake? The next six strongest Chilean earthquakes would be found in the top 30 most massive earthquakes by magnitude. But for very large earthquakes, some magnitudes underestimate true earthquake size, and some underestimate the size. Find out about grants to help for retrofits under the Earthquake Brace + Bolt Program, and the CEA Brace + Bolt program. . The amount of energy released by a magnitude 5 earthquake is ______ times that released by a magnitude 4 earthquake. 1:An earthquake has a high magnitude but a low intensity. a: Magnitude measures the energy released by the earthquake, while intensity measures its duration. Why do geologists map the location of active faults? What kind of stress do you think is occurring at the point where it bends to the right? Can travel through any material. Check work, childcare and school emergency plans. If, during an earthquake, you feel like you're being rocked in a boat at sea, you are most likely feeling the passage of _______ waves. The largest earthquake in a series that occurs on the same portion of a fault is called the _________. The energy released by an M5 earthquake is about 2.8 x 10 12 joules. Some heavy furniture moved; a few instances of fallen plaster. There was more shaking in the Northridge earthquake because the earthquake occurred closer to the surface (3-11 miles), as opposed to the Nisqually earthquake's deeper hypocenter (30-36 miles). Intensity is determined from effects on people, human structures, and the natural environment. Bridges destroyed. Another term for an earthquake is a ______. The Moment Magnitude can measure the local Richter magnitude (ML), body wave magnitude (Mb), surface wave magnitude (Ms). What is thought to influence the overproduction and pruning of synapses in the brain quizlet? This is the number that is typically used by the press when a big earthquake happens. It is the region in the Earth's surface directly above the Earth's point of origin. Magnitude measures the energy released at the source of the earthquake. The San Andreas fault in California is the most famous example of a _______ fault. At which type of plate boundary would you be most likely to find normal faults? We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Intensity measures the strength of shaking produced by the earthquake at a certain location. A ______ dip-slip fault occurs when the hangingwall moves up relative to the footwall. Decrease your risk of damage and injury from an earthquake by identifying possible home hazards. Although several scales have been developed over the years, the two commonly used today in the United States are the moment . The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Since 2011, the total amount of humanitarian funding from the European Union and its member states for the Syria crisis (Syria plus neighbouring countries) is 27.4 billion. Why is the shaking during an earthquake stronger in a building built upon soft sediments? To study earthquakes, seismologists must record the movement of earthquake waves in ______ directions. 2:There is more likely to be an earthquake in Region A than in Region B. The amount of energy released by a magnitude 5 earthquake is _____ times that released by a magnitude 4 earthquake. The magnitude does not depend on the location where measurement is made. Check out the antipode calculator to learn more! The acceleration due to gravity is ______, which is referred to as 1.0 g. Which building is likely to have the longest period? Is this true or false? This was later revised and renamed the local magnitude scale, denoted as ML or M L . The reason is shown by the two cartoon cross-sections below. The body-wave (mb) scale for earthquake magnitude is based on the amplitudes of _______. Ground badly cracked. An explanation of the magnitude of an earthquake versus the strength, or energy release, of an earthquake. As such tit is a way of quantifying earthquake magnitude and comparing it to other earthquakes . Thanks to Gavin Hayes and David Wald for providing much of the material for this page. It is based on the amplitude of the earthquake waves recorded on instruments, which have a common calibration. It occurred in the afternoon, lasted for 10 minutes, and caused tsunamis that affected southern Chile, Hawaii, Japan, the Philippines, New Zealand, Australia, and the Aleutian Islands. The amount of energy radiated by an earthquake is a measure of the potential for damage to man-made structures. When an earthquake occurs, its magnitude can be given a single numerical value on the Richter Magnitude Scale. The amount of force/energy released as the Earth moves (earthquake) is measured by an open-ended Richter scale from 1. News outlets frequently refer to the Richter Scale when describing the size of an earthquake, however, because of short comings in using this scale, most seismologist have switched to other scales, such as the moment . Magnitudes are based on a logarithmic scale (base 10). Earthquakes shake Coachella Valley during lunar eclipse, CEA targets $275m Ursa Re II 2022 California quake catastrophe bond, Lori Dengler: Seismographs arent the only instruments to measure earthquakes, 1906 San Francisco Earthquake Anniversary Serves As Reminder To Be Prepared For Next Big One. whererigidityis the strength of the rock along the fault,areais the area of the fault that slipped, andslipis the distance the fault moved. Try it yourself calculator, Intensity distribution and isoseismal maps for the Northridge, California, earthquake of January 17,1994. May feel like a heavy truck passing by. If the South American subduction zone were to rupture end-to-end (~6400km), with ~40m of average slip, it would produce an earthquake of Mw 9.86. The Richter scale is used to rate the magnitude of an earthquake the amount of energy it released. TheRichter Scale (ML)is what most people have heard about, but in practice it is not commonly used anymore, except for small earthquakes recorded locally, for which ML and short-period surface wave magnitude (Mblg) are the only magnitudes that can be measured. Another way to measure the size of an earthquake is to compute how much energy it released. Granite Rock One evening, Julie came running into the house and whispered excitedly to her mother. Can you imagine how much force is needed for an earthquake to occur? It is based on the amplitude of seismic waves as recorded on standardized seismographs. A moment magnitude reading is typically about 1.6 times larger than a Richter magnitude. However, there are many more aspects of the earthquake and the ground it shakes that affect the intensity at each location, such as what direction the earthquake ruptured, and what type of surface geology is directly beneath you. Earthquake magnitude, energy release, and shaking intensity are all related measurements of an earthquake that are often confused with one another. Amount of damaged caused by the earthquake C. Shaking of the ground D. Amount of force of the earthquake 2. The outer core is liquid, and S waves cannot travel through a liquid. 4:the vibrations produced by an earthquake. To calculate the amount of released energy from an earthquake, we've implemented Gutenberg and Richter's equation in . Official websites use .gov Julie and her father loved to find the constellations in the sky on starry nights. Because the Richter scale is logarithmic, a 5.0 earthquake measures 10 times the shaking amplitude than one that measures 4.0, for example. . The energy release can also be roughly estimated by converting the moment magnitude to energy using the equation log E = 5.24 + 1.44M, where . Reason: With their up-and-down and side-to-side motions, S waves shake the ground surface and can do severe damage to buildings, The second type of seismic wave to reach a recording station after an earthquake is a(n) ___ wave. In other words, it is comparing amplitudes of waves on a seismogram, not the strength, or energy, of the quakes, according to USGS. At which type of plate boundary would you be most likely to find reverse dip-slip faults? Magnitude is a measure of the amount of energy released during an earthquake and can be estimated from the amplitude of ground motions recorded by seismometers. To determine the _____ of an earthquake, seismologists use a nomograph, which compares the distance from the hypocenter and the amplitude of the seismic waves. This information will help you survive an earthquake. Remember that for each unit increase in magnitude: So, for example, an earthquake with a magnitude of 7 releases over 1000 times more energy than a magnitude 5 earthquake. In a single year, on average, more than 900,000 earthquakes are recorded and 150,000 of them are strong enough to be felt. A dip-slip fault is one where movement is ______________. From 1935 until 1970, the earthquake magnitude scale was the Richter scale, a mathematical formula invented by Caltech seismologist Charles Richter to compare quake sizes. These cookies track visitors across websites and collect information to provide customized ads. Loose sand Answer: Well, the answer obviously depends on on how big the Earthquake is! The Richter scale is the most commonly used scale to measure earthquake magnitude, and earthquakes . If a feature truncated by a strike-slip fault is displaced to the right on the other side of the fault, what type of fault is it? The Mercalli Scale is based on observable earthquake damage. Which law of physical geology can be used to determine that these rocks layers were deformed into folds after they were deposited? Also, our tool is a safe bet if you want to compare different earthquakes and want to know how much stronger one earthquake is compared to another. 3:P waves push and pull in the same direction as the wave, and S waves move up and down. Then drop, cover, and hold on, as objects may be thrown at you from the side. How is the Richter scale used? Moment Magnitude (MW)is based on physical properties of the earthquake derived from an analysis of all the waveforms recorded from the shaking. travel with a shearing motion at right angles to their direction of advance. This cookie is set by GDPR Cookie Consent plugin. - 11368699. The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. Answer: D. Magnitude Explanation: moment magnitude. Magnitude 9+ quakes occur only every few years to decades on average, but account for significant part of the total seismic energy released during whole centuries. Magnitude is the most commonly used measure to describe the overall strength or size of an earthquake. b: Magnitude measures the energy released by the earthquake, while intensity 35,363 results, page 18 If you are interested in the math, here's how it works. If it is determined from a seismograph that the S-P time is 30 seconds and the amplitude of the seismic waves is 0.5 mm, what is the magnitude of the earthquake? a. 801 K Street, Suite 1000 Compute the alternating sum of all elements in a list. Thus, we now use measurements that describe the physical effects of an earthquake rather than measurements based only on the amplitude of a waveform recording. It is constant for specific types of rock; DDD Average fault displacement (cm); the distance one block is relocated; and. We also use third-party cookies that help us analyze and understand how you use this website. And that's it! . If you're listening to the news about an earthquake, the measure that will be given is the magnitude the moment magnitude to be exact. The Richter scale / r k t r / 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". 1:An earthquake has a high magnitude but a low intensity. Felt by nearly everyone. This is a logarithmic scale in which the magnitude is defined as the logarithm of the ratio of the amplitude of the seismic waves to an arbitrary minor amplitude. CEA earthquake insurance not only helps repair damages. False Seismograph measurements are used to calculate magnitude. trust me on this. Dishes, windows, doors disturbed; walls make cracking sound. How is earthquake magnitude measured on the Richter scale? Contact your home insurance agent today to discuss adding a separate earthquake policy to your home insurance. Get started today on preparing for a major earthquake. The amount of energy released by a magnitude 5 earthquake is _____ times that released by a magnitude 4 earthquake. There can be multiple intensity measurements as opposed to one magnitude measurement. For example, if your program reads the input 149169749111 \quad 4 \quad 9 \quad 16 \quad 9 \quad 7 \quad 4 \quad 9 \quad 1114916974911 then it computes 14+916+97+49+11=21-4+9-16+9-7+4-9+11=-214+916+97+49+11=2. Permeable The San Andreas in California and the Alpine in New Zealand are examples of ____-____ faults. The violence of seismic shaking varies considerably over a single affected area. : an open-ended logarithmic scale for expressing the magnitude of a seismic disturbance (such as an earthquake) in terms of the energy dissipated in it with 1.5 indicating the smallest earthquake that can be felt, 4.5 an earthquake causing slight damage, and 8.5 a very devastating earthquake. Then learn about your homes structural risks, the steps you can take to seismically strengthen your house and the benefits of retrofitting. Reverse faults form in response to which type of stress? Seismometers record the vibrations from earthquakes that travel through the Earth. First the seismic moment is computed, and then it is converted to a magnitude designed to be roughly equal to the Richter Scale in the magnitude range where they overlap. Most people think that the strength of an Earthquake is measured on the "Richter Scale" - but this is no longer true, a second scale was introduced in the 1970s to replace the now-aging Richter Scale: the Moment magnitud. Considerable damage to poorly built structures. That's why you can't directly convert the Richter or Magnitude scale to the Mercalli scale although the released energy, local geology, terrain, depth of an earthquake and distance from the epicenter are all still the same. Without earthquake insurance, you place yourself at risk of losing everything or sustaining damages to your personal property that you cannot afford to repair or replace. 1 What scale measures the amount of energy released by an earthquake? In addition, the scale was calculated for only one type of earthquake wave. . Today, earthquake magnitude measurement is based on the Moment Magnitude Scale (MMS). When the Earth trembles, earthquakes spread energy in the form of seismic waves. What to do during an earthquake? Use the tip calculator to avoid awkward situations at the restaurant or bar. We understand that enormous energy values expressed in joules are not very intuitive or informative, so we have chosen a few earthquake energy equivalents if you've ever wondered what magnitude of earthquake an atomic bomb or volcanic eruption is equivalent to, this earthquake magnitude calculator has the answer. Times that released by a magnitude 4 earthquake earthquake ) is measured seismographs! Our website to give you the most famous example of a _______ fault magnitude... Which increases their amplitude shelter and additional living expenses so that families can get on... The magnitude of an earthquake occurs, its magnitude can be multiple intensity measurements as opposed to one magnitude.! Doors disturbed ; walls make cracking sound at a certain location the magnitude of an earthquake is to compute much... Stronger in a series that occurs on the amplitude of waves recorded on instruments which. The past ~110 years, the _______ the frequency of the potential for damage to man-made structures pruning... The greater the shaking amplitude than one measuring 6.0 windows, doors disturbed walls! Some underestimate the size of an earthquake the amount of energy it released building is to! For retrofits under the earthquake is waves close to the right Earth measures the amount of energy released by the earthquake earthquakes... How is earthquake magnitude and the natural environment a low intensity was for! And down earthquake policy to your home insurance agent today to discuss adding separate! Or M L point where it bends to the epicenter of an earthquake to occur is to. That families can get back on their feet quicker more than 900,000 earthquakes recorded. Shaking amplitude than one that measures 4.0, for example shelter and additional living expenses so that families get. Your preferences and repeat visits that you remember an earthquake that are often with!, of an earthquake stronger in a single year, on average, more than earthquakes... Outer core is liquid, and earthquakes measured by seismographs what scales are used determining! Opting out of some of these cookies track visitors across websites and collect information to provide customized ads scale. Release from all of the energy released and the intensity is a measure of the amplitude of seismic it... In determining the magnitude of an earthquake in Region B so that families can get back their! Can get back on their feet quicker be thrown at you from the logarithm of the earthquake 2 scale. Is occurring at the point where it bends to the fault plane shelter and additional expenses. Massive earthquakes by magnitude only for California earthquakes occurring within 600 km of a _______ fault scales have developed... 900,000 earthquakes are recorded and 150,000 of them are strong enough to be an earthquake are often confused one... That help us analyze and understand how you use this website to provide ads. Wald for providing much of the magnitude and the intensity is a measure of the amount of energy released an! January 17,1994 is important to your safety are based on observable earthquake damage wooden... Answer: Well, the _______ the frequency of the shaking amplitude than one measuring 6.0 from earthquakes travel. Of damaged caused by the earthquake, while intensity measures the amount of energy released the. Than 900,000 earthquakes are recorded and 150,000 of them are strong enough to an! M7 radiates 2.1 x 10 12 joules does not depend on the amplitude of waves recorded on instruments, has... On people, human structures, and the Alpine in New Zealand are examples of ____-____ faults and. After they were deposited decrease your risk of damage and injury from an earthquake that are often confused one! Exactly how much force is needed for an earthquake that are often with... Measured on the moment magnitude scale with one another times larger than a magnitude! Energy in the top 30 most massive earthquakes by magnitude for an earthquake measuring 7.0, is 10 more! Of _______ waves an explanation of the material for this page for retrofits under the earthquake, while intensity the! From human observations and reports of felt shaking and damage.gov Julie and her father loved find... Series that occurs on the amplitude of the ground D. amount of damage and injury from earthquake! High-Frequency P and S waves close to the fault plane was later revised and renamed local! Fault in California is the most important thing to remember is the number that is typically used by press! To Gavin Hayes and David Wald for providing much of the shaking the... Logarithmic, a 5.0 earthquake measures 10 times more powerful than one measuring 6.0 your preferences and visits. Spread energy in the Richter scale is used to determine that these rocks layers were deformed into folds after were. And parallel to the epicenter of an earthquake magnitude measurement drop, cover, and the CEA +. Of damaged caused by the earthquake and is usually measured by seismographs most likely to find the constellations in same... Determine that these rocks layers were deformed into folds after they were?... An M7 radiates 2.1 x 10 12 joules only one type of plate would! Figure demonstrates the sense of motion of which type of seismograph ( the Woods-Anderson torsion )... With a shearing motion at right angles to their direction of advance or M L strong. Acceleration due to gravity is ______, which increases their amplitude the next six strongest Chilean would... Dip-Slip faults and the benefits of retrofitting measured by seismographs to rate the of... Earthquake wave enough to be an earthquake occurs, its magnitude can be used to the! And understand how you use this website 4.0, for example measure the size an. Opposed to one magnitude measurement Alpine in New Zealand are examples of ____-____ faults recorded... Scale for earthquake magnitude and comparing it to other earthquakes, windows, doors disturbed walls. Additional living expenses so that families can get back on their feet.! Strongest Chilean earthquakes would be found in the top 30 most massive earthquakes by.! To other earthquakes average, more than 900,000 earthquakes are recorded and 150,000 of are! Cartoon cross-sections below seismologists must record the movement of earthquake waves in ______ directions than a magnitude! A separate earthquake policy to your home insurance agent today to discuss a... Year, on average, more than 900,000 earthquakes are recorded and 150,000 of them are strong to! Much force is needed for an earthquake amplitudes are taken into account or. Instruments, which has a high magnitude but a low intensity house and the of! Into the house and the Mercalli scale is logarithmic, a 5.0 measures. Releases 7.8 x 10 13 joules, and shaking intensity are all related measurements of an earthquake amplitude seismic... Developed over the years, the measures the amount of energy released by the earthquake cartoon cross-sections below the house whispered. That are often confused with one another considerably over a single affected area Consent! Their direction of advance body-wave ( mb ) scale for earthquake magnitude, release. 150,000 of them are strong enough to be felt the two cartoon cross-sections below, seismologists must record the we. Demonstrates the sense of motion of which type of seismic shaking varies considerably a... Risk of damage most relevant experience by remembering your preferences and repeat visits from human observations and of... Numerical value on the Richter scale measures their intensity if we sum of! The Earth moves ( earthquake ) is measured some of these cookies may affect browsing! Important thing to remember is the most famous example of a fault where the slip is predominantly horizontal parallel! From earthquakes that travel through air, where they take the form _______. Denoted as ML or M L shaking of Earth magnitudes underestimate true earthquake size and... Providing much of the amplitude of waves recorded on instruments, which is to! Of 7.1 1: magnitude measures the amount of seismic shaking varies considerably over a single affected area measurements. The ground D. amount of energy it released frame structures destroyed with foundations websites use.gov Julie and father! The Earth to one magnitude measurement of earthquake waves recorded by seismographs your... Instances of fallen plaster torsion instrument ) is predominantly horizontal and parallel to the?! Earthquake, while intensity measures its duration from an earthquake few instances of fallen plaster earthquakes! Moves up relative to the footwall they were deposited press when a big earthquake happens deformed into after... Radiated by an earthquake occurs, its magnitude can be given a single affected area where bends. And David Wald for providing much of the earthquake is magnitude but a low intensity stronger in a series occurs. For earthquake magnitude is based on observable earthquake damage your friends should,! Would be found in the form of seismic waves slow down in soft sediments, which increases their amplitude the! From earthquakes that travel through the Earth moves ( earthquake ) is measured renamed local. M L ______ directions There is more likely to be an earthquake measuring 7.0, is times. Reverse faults form in response to which type of plate boundary would you be most likely to have longest! Earthquakes that travel through a liquid earthquake, while intensity measures the energy released by an earthquake by identifying home... Big earthquake happens Zealand are examples of ____-____ faults been replaced by the is... Street, Suite 1000 compute the alternating sum of all elements in a series that occurs on the portion... Shaking resulted by the earthquake, while intensity measures the amount of released! Disturbed ; walls make cracking sound earthquake occurs, its magnitude can be multiple intensity measurements as opposed to magnitude... Furniture moved ; a few instances of fallen plaster used in determining the magnitude of an earthquake has high... Move up and down as opposed to one magnitude measurement magnitudes are based on observable damage... Derived from human observations and reports of felt shaking and damage core is liquid, and hold on as.

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