which statement describes earthquakes?

Intensity X (10) is the highest value on the MMI. re energy released. 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 result is called the moment magnitude. So the intensity of an earthquake will vary depending on where you are. The earthquakes are generally caused when the rocks present underneath gets break abruptly along a fault. Each seismic station in the network measures the movement of the ground at that site. Observation and interpretation of precursory phenomena, Exploration of the Earths interior with seismic waves, 6 of the Worlds Deadliest Natural Disasters. It is based on the size of seismic waves. They are caused by reduced stress in rocks. b. The moment magnitude for this event was measured at 9.5.). In California, the collapse of buildings, roads and infrastructure produced eight of the ten costliest earthquakes in the last one hundred years. The moment magnitude (MW or M) scale, developed in the late 1970s by Japanese seismologist Hiroo Kanamori and American seismologist Thomas C. Hanks, became the most popular measure of earthquake magnitude worldwide during the late 20th and early 21st centuries. It develops in the lithosphere. Omissions? Which statement about the Mercalli scale is true? These include body wave magnitude (Mb) and surface wave magnitude (Ms). It is relatively easy to acquire the necessary materials and build your own seismometer. Find, the lateral magnification m. Also, determine whether the image is. Earthquakes are the result of forces deep within the Earth's interior that continuously affect the surface of the Earth. About 50,000 earthquakes large enough to be noticed without the aid of instruments occur annually over the entire Earth. In other words, numbers on the Richter scale are proportional to the common (base 10) logarithms of maximum wave amplitudes. Which statement best describes the Aztecs? It is located at the point where circles intersect on a map. A: It is an outer planet B: it is a terrestrial planet C: it was formed from gas. In particular, for very large earthquakes, moment magnitude gives the most reliable estimate of earthquake size. This non-stop movement causes stress on Earths crust. Scientists can measure these seismic waves on instruments called seismometer. Each seismic station in the network measures the movement of the ground at that site. They move in one direction. 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. b More than 1 billion earthquakes happens per year. Tectonic plates are constantly shifting as they drift around on the viscous, or slowly flowing, mantle layer below. 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. 36 Questions from Britannicas Most Popular Science Quizzes, https://www.britannica.com/science/earthquake-geology. The destructive effects of earthquakes are from landslides, tsunamis, fires, and fault rupture. Indeed, water waves are mechanical because they imply the oscillation of matter. Very great earthquakes occur on average about once per year. Which statement describes earthquakes? The seismic activity is by no means uniform throughout the belt, and there are a number of branches at various points. A seismometer records seismic waves as a series of zig-zags. B: Killing animals is a major task in their lives C: They rarely eat meat. Correct Answers-) A.) Earth's First Question: Which statement correctly describes why earthquakes happen? Claim 1: A change to the zooplankton population caused births to i The primary goal of U.S. Geological Survey (USGS) Natural Hazards Response is to ensure that the disaster response community has access to timely, accurate, and relevant geospatial products, imagery, and services during and after an emergency event. They result from movement on Earth surface. point about 100 kilometers deep in the lithosphere. Which phrase describes a feature of an earthquake's epicenter? - They draw circles around the epicenter from three locations. Pellentes, iscing elit. They vibrate from side to side. John P. Rafferty writes about Earth processes and the environment. They result from movement on Earths surface. The earthquakes are generally caused when the rocks present underneath gets break abruptly along a fault. An official website of the United States government. Only earthquakes of magnitude 6 or above are included, unless they result in significant damage and/or casualties. The scale abandoned the use of peak wave amplitudes in its calculations, focusing instead on calculating an earthquakes seismic moment (M0)that is, the displacement of the fault across its entire surface multiplied by the force used to move the fault. How do they have Which type of wave vibrates both side to side and up and down? 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. Q: QUESTION 6 For the remaining questions, refer to the case study for additional . . 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 waves decreases b Following a main shock of magnitude 6 one could expect aftershocks as strong as a) 5 b) 6 c) 7 d) 8 a A fault line long-term . Pellentesque dapibus efficitur laoreet. c. It decreases in density with depth. It begins about 5 kilometers below Earth's surface. They range from very simple and inexpensive to sophisticated and pricey. Earthquakes are caused by shifts in the outer layers of Eartha region called the lithosphere. How do they work? A. Let us know if you have suggestions to improve this article (requires login). Earthquake is a name for seismic activity on Earth, but Earth isnt the only place with seismic activity. 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. (That is, an earthquake measuring 5.0 releases 31 times more energy than an earthquake measuring 4.0.) Which statement describes the Richter scale? Artists and scholars like Leonardo Da Vinci had to depend on wealthy and powerful people for support. Nam risus, acinia pulvinar tortor nec facilisis. earthquake A- mountains/C.) It is located at the point where circles intersect on a map. stress that decreases The earliest seismoscope was invented by the Chinese philosopher Chang Heng in A.D. 132. University of Saskatchewan - Physical Geology - What is an Earthquake? Cerunem, also known as earwax, is secreted by glands that line the external auditory canal ________. 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. The earliest seismoscope was invented by the Chinese philosopher Chang Heng in A.D. 132. They begin at the epicenter. Donec aliquet. Omissions? . It measures data used to find the difference between the arrival times of surface waves. Unfortunately, Earth is not transparent and we can't just see or photograph the earthquake disturbance like meteorologists can photograph clouds. , sponses having very different personalities having very different personalities being in four classes and three extracurricular clubs together being in four classes and three extracurricular clubs together living on the same floor in a college dorm living on the same floor in a college dorm being highly attracted to each other being highly attracted to each other having similar levels of physical attractiveness, empowerment and egalitarianism are the basis of the therapeutic relationship. D: Wild fruits berries and nuts are part of their, a. Course Hero is not sponsored or endorsed by any college or university. The statement that best describes the true nature of earthquakes is that: They release Energy. All dates are listed according to UTC time. Be sure that it follows these guidelines: Check all that apply. It increases in magnitude as amount of damage increases. Which statement describes the Mercalli scale? Which of these factors is involved in earthquake formation? The links here are to various sources with information on how to build a seismometer. An earthquake has one magnitude. You can specify conditions of storing and accessing cookies in your browser. The earthquakes can result in massive destruction depending upon its intensity. Select the two correct answers. Which statement describes the location of an earthquake's epicenter? Select the two correct answers. Earthquakes associated with this type of energy release are called tectonic earthquakes. It has a flat graphing surface. InSight is collecting tons of information about what Mars is like under the surface. The magnitude does not depend on where the measurement is made. - It increases in magnitude as amount of damage increases. Each seismic station in the network measures the movement of the ground at that site. 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. Fusce dui lectus, congue vel laoreet ac, dictum vitae odio. They are installed in the ground throughout the world and operated as part of a seismographic network. Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. Select the two correct answers. 1. I think these are the correct answers let me know if I am correct or not. a Most earthquakes are not strong enough to be felt by humans. The links here are to various sources with information on how to build a seismometer. A) an atom of an element with atomic number 12 reacts with one oxygen atom B) an atom of an element with atomic number 8 reacts with two hydrogen atoms . a) P waves, b) S waves c) surface waves d) all of these waves arrive at the same time, Which of the following types of waves is a compressional sound wave? How are earthquakes recorded? This photograph shows the San Andreas Fault, a 750-mile-long fault in California. c. They are last to reach the epicenter. ncrease in the moon jelly population. Official websites use .gov Seismic waves tell us that the Earth's interior consists of a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core. A is 10X more intense than B A is 1000 more intense than B Richter magnitude does not measure intensity B is 0.01X as intense than A In general, the most destructive earthquake waves are the __________ . An official website of the United States government. - It determines the amount of damage caused by an earthquake. Which statement describes how geologists use data from seismographs to learn about earthquakes? Very great earthquakes occur on average about once per year. 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. - The scale is most useful when scientists use data from three or more seismographs. This includes compliance with the National Historic Preservation Act, Endangered Species Act, Clean Air Act, Clean Water Act, and other applicable laws and regulations; as well as conformance with applicable Hanford Site NEPA Environmental Assessments (EAs) or Environmental Impact Statements (EISs), such as the "Hanford Site Comprehensive Land - Earthquakes that cause maximum damage are the most common. Secure .gov websites use HTTPS Pellentesque dapibus efficitur laoreet. BRAINIEST They collect data from seismographs. An earthquake is an intense shaking of Earths surface. When earthquakes produce vibrations called waves, how do those waves travel? - The scale has twenty ratings for an earthquake's effects. While every effort has been made to follow citation style rules, there may be some discrepancies. A white Ford F-150 truck hit a large metal column . Model Seismograph - Classroom Demonstration Build your own Seismograph Station Build Your Own Seismograph Amateur Seismologist Homebuilt Seismograph FAQ. The energy can be released by elastic strain, gravity, chemical reactions, or even the motion of massive bodies. c About 100 earthquakes per year are 57,188 results, page 3 What region of the world has the most earthquakes? Making land less arable and unsuitable for farming and settlement. It develops in the lithosphere. Earthquakes are recorded by a seismographic network. When rocks break, they cause _____ that move throughout, producing typhoons, which is a powerful system. Below each dragon head was a toad with its mouth opened toward the dragon. It is estimated that 80 percent of the energy presently released in earthquakes comes from those whose epicentres are in this belt. On the original Richter scale, the smallest earthquakes measurable at that time were assigned values close to zero on the seismograph of the period. Today the moment magnitude scale, a closer measure of an earthquakes total energy release, is preferred. They travel from the epicenter. Which statement describes the moment magnitude scale? A. Geothermal B. The lithosphere isnt a continuous piece that wraps around the whole Earth like an eggshell. a. Earthquakes develop at Earth's surface. Little was understood about earthquakes until the emergence of seismology at the beginning of the 20th century. Some earthquake waves, a cat's purr, and elephant communications consist of ultrasonic waves. So why do we report that the earthquake occurred at a depth of 0 km or event as a negative depth sometimes? Depending on their intensity, earthquakes (specifically, the degree to which they cause the grounds surface to shake) can topple buildings and bridges, rupture gas pipelines and other infrastructure, and trigger landslides, tsunamis, and volcanoes. Which statement describes the damage that results from earthquakes? Share sensitive information only on official, secure websites. a. existential b. feminist c. gestalt d. psychoanalytic. He serves currently as the editor of Earth and life sciences, covering climatology, geology, zoology, and other topics that relate to 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. Which is one step that geologists use to find the epicenter of an earthquake? a Most earthquakes are not strong enough to be felt by humans. Which type of wave may make the ground roll? happen? In the decades that followed the creation of the original Richter scale, they developed the body-wave magnitude scale (mb, which calculates the magnitude of primary, or P, and secondary, or S, seismic waves traveling within Earth) and the surface-wave magnitude scale (MS, which calculates the magnitude of Love and Rayleigh waves traveling along Earths surface). They travel faster than P waves. 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. They move side to side. Scientists can accurately predict when an earthquake will occur, but not where.D. This record also provides information about the rocks the seismic waves traveled through. The energy from an earthquake travels through Earth in vibrations called seismic waves. How do you determine the magnitude for an earthquake that occurred prior to the creation of the magnitude scale? Earthquake waves, more commonly known as seismic waves, are vibrations generated by an earthquake and propagated within Earth or along its surface. less simple carbohydrates As the level rises toward the larger numbers, the amount of damage increases considerably. The moment is then converted into a number similar to other earthquake magnitudes by a standard formula. 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 solid crust and top, stiff layer of the mantle make up a region called the lithosphere. Seismometers, seismographs, seismograms - what's the difference? This magnitude scale was referred to as ML, with the L standing for local. How do seismologists locate an earthquake? Answers. By studying the vibrations from marsquakes, scientists hope to figure out what materials are found on the inside of Mars. When an earthquake occurs, one of the first questions is "where was it?" lithosphere The S, or secondary, waves arrive after the P waves. 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. (See the table of major earthquakes.). It contains two or more foods containing fiber. They vibrate from side to side. This site is using cookies under cookie policy . Answers The answer is option D. water waves. It is located using a single set of data. 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. The release of enormous energy leads to the development of earthquakes. Which phrase describes a feature of an earthquake's epicenter? In the United States, we use the Modified Mercalli (MMI) Scale. While every effort has been made to follow citation style rules, there may be some discrepancies. damage When the two plates or the two rocks gets rubbed against each other, they slightly stick with each other. They write new content and verify and edit content received from contributors. This magnitude scale was referred to as ML, with For earthquakes that occurred between about 1890 (when modern seismographs came into use) and 1935 when Charles Richter developed the magnitude scale, people went back to the old records and compared the seismograms from those days with similar records for later earthquakes. When an earthquake occurs, one of the first questions is "where was it?" Which statement describes one aspect of an earthquake's magnitude? How do seismologists locate an earthquake? The direction of the water flow in the streams has changed as a result of a change in the slope. Object O stands on the central axis of a spherical mirror. - They use one reading to determine the location of an epicenter. Nam risus ante, dapibus a molestie consequat, ultrices ac magna. The location may tell us what fault it was on and where damage (if any) most likely occurred. The _____ magnitude scale is useful for measuring the strength of earthquakes of all sizes and at all distances from a seismograph. They often compare information from all over the world. - They often compare information from all over the world. this earthquake, which was centered about 380 kilometers west-southwest of Mexico City, had a surface-wave magnitude of 8.1. Magnitude scales, like the moment magnitude, measure the size of the earthquake at its source. Which increases along faults and leads to rock breaking? Nam risus ante, dapibus a molestie consequat, ultrices ac magna. This was a large urn on the outside of which were eight dragon heads facing the eight principal directions of the compass. Currently, we use the WGS84 version (World Geodetic System of 1984). Nam lacinia pulvinar tortor nec facilisis. - They measure the difference between the arrival times of surface waves. They begin at epicenter where their magnitude is highest. Get a Britannica Premium subscription and gain access to exclusive content. Which statements describe earthquakes? increasing the spread of infectious diseases. Which factor does the moment magnitude scale estimate? pastor, interpersonal relationship | 191 views, 4 likes, 4 loves, 37 comments, 1 shares, Facebook Watch Videos from Brandywine Valley Church: Pastor Matthew McNutt shares "The Antidote to Fear" from. Below each dragon head was a toad with its mouth opened toward the dragon. Question 1-) what geographic feature(s) of Arkansas made it difficult for settlers to travel? Which statement describes the formation of a covalent molecule? They are produced by P and S waves. The location where an earthquake begins is called the epicenter. Both compress the ground. Telemetry waves are radio waves. 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. Which statement describes the focus of an earthquake? Magnitude is a measure of the amplitude (height) of the seismic waves an earthquakes source produces as recorded by seismographs. They release energy. Each is valid for a particular frequency range and type of seismic signal. 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. 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? Anderson-Wood torsion pendulum seismograph, Learn how the Richter scale relies on vibration to logarithmically track earth tremors. region directly above the focus (in italics) use the map to answer the question. , according to social psychologists, which of the following characteristics makes two people least likely to develop a lasting romantic relationship? An earthquakes most intense shaking is often felt near the epicenter. How are earthquakes recorded? A lock () or https:// means youve safely connected to the .gov website. Earthquake size, as measured by the Richter Scale is a well known, but not well understood, concept. a) the Parkfield Earthquake study (4 points) b) what was learned about earthquake prediction from the 2004 Parkfield earthquake (3 points) . Although the Earth looks like a pretty solid place from the surface, its actually extremely active just below the surface. So why do we report that the earthquake occurred at a depth of 0 km or event as a negative depth sometimes? location This sudden discharge of energy makes the seismic waves resulting in shaking of the ground. (3 points), sque dapibus efficitur laoreet. How are S waves and surface waves similar? A diagram of Earth's layers. They travel through liquids. The violent shaking of the ground produces the greatest property losses and personal injuries. identical twin? , Question: What could have caused the size of the moon jelly population to increase? Michigan Tech - UPSeis - Where Do Earthquakes Happen? a) the Parkfield Earthquake study (4 points), b) what was learned about earthquake prediction from the 2004 Parkfield earthquake (3 points), c) the difference between earthquake prediction and earthquake forecasting (3 points), d) the key pieces of information that are part of an earthquake forecast.
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