which statement describes earthquakes?

which statement describes earthquakes?

The solid crust and top, stiff layer of the mantle make up a region called the lithosphere. Corrections? All dates are listed according to UTC time. Of these, approximately 100 are of sufficient size to produce substantial damage if their centres are near areas of habitation. One earthquake that shook the Salton Sea region - located south of Joshua Tree - registered as a 4.5 in magnitude on the Richter scale. Magnitude scales, like the moment magnitude, measure the size of the earthquake at its source. A diagram of Earth's layers. This happens because the relation between the seismic measurements and the magnitude is complex and different procedures will often give slightly different magnitudes for the same earthquake. Because of the limitations of all three magnitude scales (ML, Mb, and Ms), a new more uniformly applicable extension of the magnitude scale, known as moment magnitude, or Mw, was developed. It is determined by the arrival time of surface waves. It begins about 5 kilometers below Earth's surface. Lorem ipsum dolor sit amet, consectetur adipiscing elit. What are some problems of this way of life? c. It decreases in density with depth. Earthquakes are recorded by a seismographic network. It is used to determine damage caused by earthquakes. Fusce dui lectus, congue vel laoreet ac, dic, ec aliquet. The risks that earthquakes pose to society, including death, injury, and economic loss, can be greatly reduced by (1) better planning, construction, and mitigation practices before earthquakes happen, and (2) providing critical and timely information to improv, The U.S. Geological Survey (USGS) recently completed new probabilistic seismic hazard maps for the United States, including Alaska and Hawaii. D: Wild fruits berries and nuts are part of their, a. Describe a) the Parkfield Earthquake study (4 points) b) what Access to over 100 million course-specific study resources, 24/7 help from Expert Tutors on 140+ subjects, Full access to over 1 million Textbook Solutions, m ipsum dolor sit amet, consectetur adipiscing elit. It increases in magnitude as amount of damage increases. Although the Earth looks like a pretty solid place from the surface, its actually extremely active just below the surface. Magnitude calculations are dependent on the earthquake being local, as well as on the use of one particular type of seismograph. Very great earthquakes occur on average about once per year. - It increases in magnitude as amount of damage increases. Credit: NASA-JPL/Caltech. A seismometer detects seismic waves below the instrument and records them as a series of zig-zags. These phenomena are primarily responsible for deaths and injuries. earthquake Environmental Studies Class 12 English Medium SEE ALL Advertisement Answer The slip of one block of rock over another in an earthquake releases energy that makes the ground vibrate. Although both scales continued to make use of seismographs and peak wave amplitudes, they became relatively reliable ways to calculate the energy of all but the largest earthquakes. waves. Which phrase describes a feature of an earthquake's epicenter? Scientists can measure these seismic waves on instruments called seismometer. They are installed in the ground throughout the world and operated as part of a seismographic network. It is relatively easy to acquire the necessary materials and build your own seismometer. Nam lacinia pulvina. This was a large urn on the outside of which were eight dragon heads facing the eight principal directions of the compass. Lorem ipsum dolor sit amet, consectetur adipiscing elit. The statement that best describes the true nature of earthquakes is that: They release Energy. - The scale has twenty ratings for an earthquake's effects. The amount of ground motion is one measure of earthquake intensity. It contains more complex In the United States, we use the Modified Mercalli (MMI) Scale. Credit: Wikimedia Commons user Z22, CC BY-SA 3.0. Pellentesque dapibus efficitur laoreet. The maximum intensities are based on the Modified Mercalli intensity scale. While every effort has been made to follow citation style rules, there may be some discrepancies. plates getting larger Which statement describes the location of an earthquake's epicenter? starting point of an earthquake The solid crust and top, stiff layer of the mantle make up a region called the lithosphere. - It determines the amount of damage caused by an earthquake. Claim 1: A change to the zooplankton population caused births to i It is denser than continental crust and. a. The moment is then converted into a number similar to other earthquake magnitudes by a standard formula. The energy from an earthquake travels through Earth in vibrations called seismic waves. - Damage can be measured using the Richter scale. - They measure the difference between the arrival times of surface waves. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. The lithosphere isn't a continuous piece that wraps around the whole Earth like an eggshell. They carry energy. BRAINLIEST #1.) These hazard maps form the basis of the probabilistic component of the design maps used in the 1997 edition of theNEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures, prepared by the Building Seismic Safety Council a, 12201 Sunrise Valley Drive Reston, VA 20192, Earthquake Magnitude, Energy Release, and Shaking Intensity. Official websites use .gov Select the two correct answers. An earthquake has one magnitude. Scientists CANNOT accurately predict most earthquakes. Earth's crust near magma melts, and the ground collapses. So why do we report that the earthquake occurred at a depth of 0 km or event as a negative depth sometimes? a) back, and forth parallel to the direction of wave travel b) back and forth at right angles to the, direction of wave travel c) in rolling circular motion d) in a rolling elliptical motion, An earthquake's Richter magnitude is based on the a) amount o0f energy released, during an earthquake b) amount of ground movement caused by seismic waves c), distance between the earthquake and the seismograph station d) observed effects on, Analysis of fault mechanisms indicates __________ at divergent boundaries and, __________ at transform boundaries a) compression;tension b) shear;compression c), What type of information do seismographs give about an earthquake a) the location b), What is the minimum number is seismic detectors needed to determine fault, As the distance to an earthquake increases, a) the elapsed time before the P waves, arrive decreases b) the time between the arrival of the P and S waves increases c) the, amount of ground shaking increases d) the time between the arrival of the P and S, Following a main shock of magnitude 6 one could expect aftershocks as strong as a) 5, A fault line long-term slip rate of 5 cm/year and slips 2.5 m when it moves. What is the, recurrence interval of the fault a) 10 years b) 50 years c) 100 years d) 1000 years, The elastic rebound theory describes a) how earthquakes bounce off layers b) the, elasticity of rocks c) the flexibility of a fault d) how earthquakes recur along an active. focus a Most earthquakes are not strong enough to be felt by humans. a) the Parkfield Earthquake study (4 points) b) what was learned about earthquake prediction from the 2004 Parkfield earthquake (3 points) . Earth's crust undergoes a cycle from a solid material to magma. answer choices It creates stress in rock. Both arrive after P waves. In its range of validity, each is equivalent to the Richter magnitude. Over the centuries, earthquakes have been responsible for millions of deaths and an incalculable amount of damage to property. Earthquakes are the result of forces deep within the Earth's interior that continuously affect the surface of the Earth. Each increase of one unit also represents the release of about 31 times more energy than that represented by the previous whole number on the scale. It begins about 5 kilometers below Earth's surface. They start as surface waves. Below each dragon head was a toad with its mouth opened toward the dragon. In theory, the Richter scale has no upper limit, but, in practice, no earthquake has ever been registered on the scale above magnitude 8.6. Why don't you report the duration of each earthquake? Why do we use it and where does its shape come from? This is a list of earthquakes in 2023. Earth's crust switches places in a periodic manner. In addition, seismic waves can be produced artificially by explosions. It increases in density with depth. Earthquakes develop at Earth's surface. Which statement describes the focus of an earthquake? When an earthquake occurs, one of the first questions is "where was it?" This site is using cookies under cookie policy . Be sure that it follows these guidelines: - This scale measures the magnitude of an earthquake based on the size of seismic waves. What is the difference between earthquake magnitude and earthquake intensity? answer choices The streams' directions have changed after the formation of a hot spot in Earth's crust. Pellentesque dapibus efficitur laoreet. An official website of the United States government. Question 3 options: 1. They vibrate from side to side. - They look at data from at least one seismograph. Faults extend from a few centimetres to many hundreds of kilometres. Course Hero is not sponsored or endorsed by any college or university. - They map the location of an earthquake's focus. In other words, numbers on the Richter scale are proportional to the common (base 10) logarithms of maximum wave amplitudes. State the functions of the skeletal system, including the number and the major bones in the human skeleton. The ______ scale is best used to measure the strength of small, nearby earthquakes. The duration of an earthquake is related to its magnitude but not in a perfectly strict sense. Earthquake is a name for seismic activity on Earth, but Earth isnt the only place with seismic activity. When this energy is released suddenly, for example by shearing movements along faults in the crust of the Earth, an Which statement describes the focus of an earthquake? #SPJ3 Find Environmental Sciences textbook solutions? Claim 2: A change to the sea turtle population caused deaths to decrease in the moon jelly population. - They often compare information from all over the world. Model Seismograph - Classroom Demonstration Build your own Seismograph Station Build Your Own Seismograph Amateur Seismologist Homebuilt Seismograph FAQ. energy released. Which increases along faults and leads to rock breaking? On Earth, we know that different materials vibrate in different ways. Unfortunately, Earth is not transparent and we can't just see or photograph the earthquake disturbance like meteorologists can photograph clouds. They move in one direction. - The amount of damage increases as the magnitude decreases. . It is located at the point where circles intersect on a map. It's actually made up of giant puzzle pieces called tectonic plates. It develops in the lithosphere. How do they work? 1. It is used to locate an earthquake's focus. The earthquakes magnitude is determined using the logarithm of the amplitude (height) of the largest seismic wave calibrated to a scale by a seismograph. The slip of one block of rock over another in an earthquake releases energy that makes the ground vibrate. The most important earthquake belt is the Circum-Pacific Belt, which affects many populated coastal regions around the Pacific Oceanfor example, those of New Zealand, New Guinea, Japan, the Aleutian Islands, Alaska, and the western coasts of North and South America. The statement that best describes the true nature of earthquakes is that: They release Energy. The earthquakes are generally caused when the rocks present underneath gets break abruptly along a fault. Rock can bend and break. Draw or describe your meal in the space below: They were an advanced civilization in MesoAmerica with a religion, government, cities, weapons, and technology for delivering the water to the cities called aqueducts. For earthquakes measuring magnitude 6.5 or greater, Richters original methodology has been shown to be unreliable. An earthquake is the sudden movement of Earths crust at a fault line. Describe. Share sensitive information only on official, secure websites. Which statement describes earthquakes? (in italics) use the map to answer the question. Which statement describes earthquakes? - It measures only small earthquakes. - Amount of damage can be used to determine intensity. (c) The coefficient of performance of an irreversible heat pump cycle is always less than the coefficient of performance of a reversible heat pump cycle when both exchange energy by heat transfer with the same two reservoirs. What was the first instrument that actually recorded an earthquake? wave strength It uses a needle on graph paper to measure seismic wave activity. Get a Britannica Premium subscription and gain access to exclusive content. Over the centuries they have been responsible for millions of deaths and an incalculable amount of damage to property. How is the magnitude of an earthquake determined? They collect data from seismographs. This scale rates an earthquake according to how much damage it causes. 3. How do you determine the magnitude for an earthquake that occurred prior to the creation of the magnitude scale? When an earthquake occurred, one or more of the eight dragon-mouths would release a ball into the open mouth of A geoid is the irregular-shaped ball that scientists use to more accurately calculate depths of earthquakes, or any other deep object beneath the earths surface. Although modern scientific practice has replaced the original Richter scale with other, more-accurate scales, the Richter scale is still often mentioned erroneously in news reports of earthquake severity as the catch-all name for the logarithmic scale upon which earthquakes are measured. Which statements describe earthquakes? Michigan Tech - UPSeis - Where Do Earthquakes Happen? You can specify conditions of storing and accessing cookies in your browser. damage - The scale is most useful when scientists use data from three or more seismographs. How do they have Scientists can accurately predict when an earthquake will occur, but not where.D. How can an earthquake have a negative depth; that would mean its in the air. An earthquake is a sudden shaking of Earth's surface caused by the movement of rocks deep underneath. (That was the Richter magnitude for the Chile earthquake of 1960. Present-day seismographs, however, may be calibrated to compute Richter magnitudes, and modern methods for measuring earthquake magnitude have been developed to produce results that remain consistent with those measured using the Richter scale. The first is the length of time it takes for the fault to rupture and the second is the length of time shaking is felt at any given point (e.g. Richter scale (ML), quantitative measure of an earthquake 's magnitude (size), devised in 1935 by American seismologists Charles F. Richter and Beno Gutenberg. rebecca is likely exp The Richter scale of earthquake magnitude is listed in the table. How do you determine the magnitude for an earthquake that occurred prior to the creation of the magnitude scale? ncrease in the moon jelly population. The links here are to various sources with information on how to build a seismometer. less simple carbohydrates They are caused by reduced stress in rocks. Plates form on the lithosphere. A- mountains/C.) Magnitude scales, like themoment magnitude, measure the size of the earthquake at its source. Which statement about earthquakes is accurate? Scientists can accurately predict the time and location of almost all earthquakes.B. To accomplish this goal, products and services provided by the National Geospatial Program (NGP) and Land Remote Sensing (LRS) Program serve as a geos, Earthquakes are one of the most costly natural hazards faced by the Nation, posing a significant risk to 75 million Americans in 39 States. found that the deeper slip of the July 2021 magnitude 8.2 Chignik, Alaska . Earthquakes associated with this type of energy release are called tectonic earthquakes. An earthquake has one magnitude. Which type of wave is the first to arrive during an earthquake? b. B: Killing animals is a major task in their lives C: They rarely eat meat. Which statement describes how geologists use data from seismographs to learn about earthquakes? With this network, the United States maintains world leadership in monitoring the greatest natural and technological events that threaten o, Mexico was hit by one of the most devastating earthquakes in its history on September 19, 1985 at 7:18 a.m. MDT time. InSight is collecting tons of information about what Mars is like under the surface. Which statement describes the Mercalli scale? In order to take advantage of the growing number of globally distributed seismograph stations, new magnitude scales that are an extension of Richter's original idea were developed. Which statement describes the formation of a covalent molecule? causing earthquakes, tsunamis, and volcanic, Which of these are financial goals? Please refer to the appropriate style manual or other sources if you have any questions. Which statement describes one aspect of an earthquake's magnitude? Earthquakes can occur anywhere, but they occur mainly along fault lines (planar or curved fractures in the rocks of Earths crust), where compressional or tensional forces move rocks on opposite sides of a fracture. The S, or secondary, waves arrive after the P waves. The shaking of the Earth's surface, taking place due to the sudden discharge of energy in the lithosphere of the Earth, which leads to formation of seismic waves is known as an earthquake. An official website of the United States government. They travel through liquids. Which statement describes P waves? This is what was to eventually become known as the Richter magnitude. What is the Modified Mercalli Intensity Scale? Which statement describes the moment magnitude scale? They result from movement on Earths surface. Tamang sagot sa tanong: 5. Earthquake shadow zones Which statement correctly describes Earth's interior? Which statement describes surface waves? Both scales, however, suffered from saturation when used to measure earthquakes of magnitude 8 and above. What happens when stress builds at faults? It contains two or more foods containing fiber. The _____ magnitude scale is useful for measuring the strength of earthquakes of all sizes and at all distances from a seismograph. You can draw and label The location may tell us what fault it was on and where damage (if any) most likely occurred. The location where an earthquake begins is called the epicenter. How is the magnitude of an earthquake determined? Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. How does the duration affect the magnitude? NASAs InSight mission took a seismometer to Mars to study seismic activity there, known as marsquakes. However, the vibrations from an earthquake can still be felt and detected hundreds, or even thousands of miles away from the epicenter. The lithosphere isnt a continuous piece that wraps around the whole Earth like an eggshell. Which of these factors is involved in earthquake formation? In addition, the Richter scale could not be used to calculate the total energy released by an earthquake or describe the amount of damage it did. Because of limitations imposed by seismographs and the emphasis on measuring a single peak amplitude, the Richter scale underestimates the energy released in earthquakes with magnitudes greater than 6.5, since the values calculated after measuring very large seismic waves tend to cluster, or saturate, near one another. d. They are the most damaging. Imagine that you do! True False. They begin at the epicenter. generally not felt by people, though recorded on local instruments, serious damage over large areas; loss of life, severe destruction and loss of life over large areas. you like to eat. They release energy. and fat. They arrive at the same time. Each is valid for a particular frequency range and type of seismic signal. They travel away from the focus of the earthquake in all directions. A. Geothermal B. faults that remain stationary. Which type of wave may make the ground roll? This global seismicity distribution is best understood in terms of its plate tectonic setting. Seismic waves are produced when some form of energy stored in Earth's crust is suddenly released, usually when masses of rock straining against one another suddenly fracture and "slip." Earthquake A has a Richter magnitude of 7 as compared with earthquake B's 6. This has long been apparent from early catalogs of felt earthquakes and is even more readily discernible in modern seismicity maps, which show instrumentally determined epicentres. - The scale rates an earthquake based on its total energy released. (b) All reversible refrigeration cycles operating between the same two reservoirs have the same coefficient of performance. Find, the lateral magnification m. Also, determine whether the image is. A white Ford F-150 truck hit a large metal column . This non-stop movement causes stress on Earths crust. Moment is a physical quantity proportional to the slip on the fault multiplied by the area of the fault surface that slips; it is related to the total energy released in the earthquake. They range from very simple and inexpensive to sophisticated and pricey. Artists and scholars like Leonardo Da Vinci had to depend on wealthy and powerful people for support. Earth's crust is fractured into tectonic plates that have been moving very slowly over the Earth's surface for millions of years. Which statement about the Mercalli scale is true? Q: QUESTION 6 For the remaining questions, refer to the case study for additional . A .gov website belongs to an official government organization in the United States. As more seismograph stations were installed around the world, it became apparent that the method developed by Richter was strictly valid only for certain frequency and distance ranges. How are earthquakes measured? Scientists talk about the evidence that supports their concern that our planet is warming. b More than 1 billion earthquakes happens per year. Below each dragon head was a toad with its mouth opened toward the dragon. Which statement correctly describes the diagram? Currently, we use the WGS84 version (World Geodetic System of 1984). When earthquakes produce vibrations called waves, how do those waves travel? 2. How are S waves and surface waves similar? Most quakes are unnoticeable by people on Earth's surface. All the 4 statements are describing earthquakes as they release energy, and are caused by reduced stress in rocks. Some earthquake waves, a cat's purr, and elephant communications consist of ultrasonic waves. Select the two correct answers. Have you ever wondered what it would be like to have an Since modern seismographs can detect seismic waves even smaller than those originally chosen for zero magnitude, it is possible to measure earthquakes having negative magnitudes on the Richter scale. This photograph shows the San Andreas Fault, a 750-mile-long fault in California. Of all these the release of elastic strain is the most important cause, because this form of energy is the only kind that can be stored in sufficient quantity in the Earth to produce major disturbances. That vibration pushes the adjoining piece of ground and causes it to vibrate, and thus the energy travels out from the earthquake hypocenter in a wave Earthquake size, as measured by the Richter Scale is a well known, but not well understood, concept. How are S waves and P waves similar? It is determined by the depth of the focus. Very great earthquakes occur on average about once per year. It is relatively easy to acquire the necessary materials and build your own seismometer. Get a Britannica Premium subscription and gain access to exclusive content. The California Highway Patrol in a statement said the crash happened about 4:30 a.m. on northbound Interstate 680 at the state Highway 242 split. When rocks break, they cause _____ that move throughout, producing typhoons, which is a powerful system. A .gov website belongs to an official government organization in the United States. There are four principal types of elastic waves: two, primary and secondary waves, travel within Earth, whereas the other two, Rayleigh and Love waves, called surface waves, travel along its surface. Which of the following statements BEST describes the current state of, Scientists can accurately predict the time and location of almost all, Scientists can accurately predict the time and location of approximately 50, Scientists can accurately predict when an earthquake will occur, but not. b More than 1 billion earthquakes happens per year. They are produced by P and S waves. Energy is absorbed. United States Geological Survey (USGS) Natural Hazards Response, Earth Resources Observation and Science (EROS) Center, Monitoring earthquakes across the United States, NEIC; the National Earthquake Information Center. How are earthquakes measured? It creates stress in rock. If Earth were a perfect sphere, calculations of depth and distances would be easy because we know the equations for those calculations on a sphere. The slip of one block of rock over another in an earthquake releases energy that makes the ground vibrate. A: They live in permanent villages. Nam lacinia pulvinar tortor nec facilisis. How are earthquakes recorded? The earliest seismoscope was invented by the Chinese philosopher Chang Heng in A.D. 132. I think these are the correct answers let me know if I am correct or not. d. Its density varies randomly with depth. Wind C. Natural Gas D. Corn Plz Help Which statement is always true about an acute triangle A: no sides are congruent B: all three angles are congruent C: all three angles are less than 90 degrees D: on angle is greater than 90 degrees Which best describes hitler's beliefs as expressed in mein kampf? The shaking of the Earth's surface, taking place due to the sudden discharge of energy in the lithosphere of the Earth, which leads to formation of seismic waves is known as an earthquake. a) P waves b) S, waves c) surface waves d) all of the above, How do rock particles move during the passage of an S wave through the rock? The sliding does not take place smoothly, and after some time, the rocks get dissociate, resulting in an earthquake. - It collects data using a seismograph. It lies above the surface where rock breaks. It measures data used to find the difference between the arrival times of surface waves. This was a large urn on the outside of which were eight dragon heads facing the eight principal directions of the compass. So why do we report that the earthquake occurred at a depth of 0 km or event as a negative depth sometimes? Video courtesy of Security Camera / Anadolu Agency via Getty Images Earthquakes often happen without warning. It is based on the size of seismic waves. 1 2 3 Global distribution of earthquakes and volcanoes The earth's surface is made up of two types of crust: Oceanic crust - found underneath the oceans. plate The shortcomings inherent in the original Richter scale spawned the development of improved Richter scales by Richter and Gutenberg. this earthquake, which was centered about 380 kilometers west-southwest of Mexico City, had a surface-wave magnitude of 8.1. Gamma rays are a kind of electromagnetic wave. The destructive behavior of great earthquakes in subduction zones, such as in Japan in 2011, depends on details of the earthquake slip. Today the moment magnitude scale, a closer measure of an earthquakes total energy release, is preferred. Donec aliquet. BRAINIEST How do they work? location Which statement describes seismic waves? How Do Scientists Predict Tsunamis After Earthquakes? For example a level I-V on the Mercalli scale would represent a small amount of observable damage. Both travel through liquids. If Earth were a perfect sphere, calculations of depth and distances would be easy because we know the equations for those calculations on a sphere. Seismometers, seismographs, seismograms - what's the difference? , Question: What could have caused the size of the moon jelly population to increase? region directly above the focus Question 1-) what geographic feature(s) of Arkansas made it difficult for settlers to travel? - They use one reading to determine the location of an epicenter. Earth's resources: Effects of Human Activity, Advanced Mechanics of Materials and Applied Elasticity. There also are striking connected belts of seismic activity, mainly along oceanic ridgesincluding those in the Arctic Ocean, the Atlantic Ocean, and the western Indian Oceanand along the rift valleys of East Africa. Which statement describes the damage that results from earthquakes? - It shows only the strength of seismic waves that were produced. A: they release energy B: they are caused by forces C: they begin at the epicenter D: they can lead to massive damage E: they result from movement on earths surface A,D Which statements describes earth? Tectonic plates are constantly shifting as they drift around on the viscous, or slowly flowing, mantle layer below. Each increase of one unit on the scale represents a 10-fold increase in the magnitude of an earthquake.

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