The sediments in the abandoned streambed are about 2,500 years old. Types of movement of crustal blocks that can occur along faults during an earthquake: ©Redrawn from University of Otago (Richard Sibson) 1. Watch it now, on The Great Courses Plus. Where the crust is being pulled apart, normal faulting occurs, in which the overlying (hanging-wall) block moves down with respect to the lower (foot wall) block. Earthquakes and faults (Grade 8 Lesson) 1. The formation of fault along the rocks that results to movement of the crust. Government officials are subject to the law. Travel outward from the focus;compress and expand the ground;moves through liquids and solids;fastest wave. Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks. and iii. D.) Fault forms when there is sudden shaking of the ground rock masses that suddenly shift in position. Vibrate from side to side and up and … As the plates move past each other, they sometimes get caught and pressure builds up. Faults may range in length from a few millimeters to thousands of kilometers. Plates attached to the subduction plates move faster than other plates. )Which of the following statements best explain on how faults generate Earthquakes? Objective 1. 4. Understand how and why earthquakes are produced. Curriculum Information. This stretch of fault was once considered the likeliest place for the next big earthquake. When the surface on each side of the fault become stuck together (normally due to friction), pressure and strain begin to build. 5. )Fault forms when the forces that move in different directions go beyond the elastic limit of the rock masses.D.) Faults may range in length from a few millimeters to thousands of kilometers. Earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. Limitations are placed on how long government officials can serve. (Image: Eric Gaba/CC BY-SA 3.0/Public domain) This is a transcript from the video series A Field Guide to the Planets. Thank you for posting your first question! Descriptions of the three types of faults that cause earthquakes. )Fault forms when the forces that move in different directions go beyond the elastic limit of the rock masses.D.) This is a sidewalk in Hollister, California. When the tectonic plates move and collide along these fault lines earthquakes are caused. In Utah, movement along faults is mostly vertical; mountain blocks (for example, the Wasatch Range) move up relative to the downward movement of … P Wave. The formation of fault along the rocks that results to movement of the crust.B.) B.) A.) Faults are categorized into three general groups based on the sense of slip or movement. Most faults produce repeated displacements over geologic time. This movement may occur rapidly, in the form of an earthquake – or may occur slowly, in the form of creep. 2. A. i. and iii. Decide what kind of fault is shown in each. iii. Examine the pictures carefully. Explain the relationship between earthquakes and faults. The friction across the surface of the fault holds the rocks together so they do not slip immediately when pushed sideways. 5. Movement in narrow zones along plate boundaries causes most earthquakes. Each picture below shows how an earthquake changed the land surface at a fault. The movement of said plates creates breakage and these breaks are identified as fault lines. Write your answers in the spaces provided. The movement vectors of a plate are a function of all the forces acting on the plate. Fault forms when there is sudden shaking of the ground rock masses that suddenly shift in position.5. Faults are the result of the stress caused by tectonic plates. Government officials are held accountable for their actions. Earthquakes occur most often along geologic faults, narrow zones where rock masses move in relation to one another. ii. Earthquake - Earthquake - Tectonics: Tectonic earthquakes are explained by the so-called elastic rebound theory, formulated by the American geologist Harry Fielding Reid after the San Andreas Fault ruptured in 1906, generating the great San Francisco earthquake. Education Type K to 12 Grade Level Grade 8 Learning Area Science Content/Topic Earth and Space Intended Users Learners, … Faults allow the blocks to move relative to each other. As a review, ask students the following questions: a. )Which of the following statements best explain on how faults generate Earthquakes?A.) )Fault forms when the forces that move in different directions go beyond the elastic limit of the rock masses.D.) Compare this with another place and say why it may be suite … d for other activities. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. A step in the fracture plane builds local stress and slows the movement. 2. But if a fault suddenly moves in or near a body of water, you may get a tsunami in addition to the earthquake. I'm Gabriella and I'm a part of the Welcoming Committee on Brainly. Then explain how movement along the fault caused the changes you see. Friction How Movement along a Fault Generates an Earthquake Movement along Faults Movement may occur in any direction along the surface of the break. )Which of the following statements best explain on how faults generate Earthquakes?A.) (8 marks) A force of 40 N is needed to set a 10-kg steel box across a wooden floor. iv. Learning Objective 1.Use models or illustrations to explain how movement along faults generate earthquakes. This movement may occur rapidly, in the form of an earthquake - or may occur slowly, in the form of creep. Emphasize that the build-up of stress and the sudden slip along the fault result in earthquakes. Fault forms when there is sudden shaking of the ground rock masses that suddenly shift in position.5. The curve in the wall and the bend in the sidewalk is where the San Andreas Fault crosses it. As the side of the fault press against each other, they move suddenly and create what you feel as an earthquake. Learning Competency: • Describe what a fault is. Learn more about the causes and effects of earthquakes in this article. HOW ARE EARTHQUAKES … Explanation: Due to the movement of the plates in two different directions, the crust gets cracked and this leads to the formation of divergent boundaries that pulls the two sides apart, and as a result, the earthquakes are created and some of them may occur in the same location. This module explains how and why earthquakes occur. Those faults that move in a horizontal direction or sideways will not result in a tsunami. 2.Differentiate the epicenter of an earthquake from its focus 7. C. when fault movement causes magma to break through the crust causing volcanoes D. when the ground shakes violently 2 See answers Sandy66669 Sandy66669 Answer: B. Fault forms when there is sudden shaking of the ground rock masses that suddenly shift in position.5. How does the movement of the fault generates earthquake? Brainly User Brainly User 18.11.2020 Geography Primary School How does the United States limit the power of its government? Why do earthquakes usually occur at plate boundaries? *Not every fault movement beneath the sea will produce a tsunami. )Which of the following statements best explain on how faults generate Earthquakes?A.) Earthquakes occur on faults - strike-slip earthquakes occur on strike-slip faults, normal earthquakes occur on normal faults, and thrust earthquakes occur on thrust or reverse faults. i. Acquire knowledge and apply things learned for everyday living. Movement along faults can create mountains and valleys. 3. Explain how movements along faults generate earthquakes How are rocks affected by different types of stress? 2. During an earthquake, the rock on one side of the fault suddenly slips with respect to the other. Most of the earthquakes and volcanoes around the Pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. The formation of fault along the rocks that results to movement of the crust.B.) 2 See answers Hello and welcome to Brainly! Movement of the two surfaces of rock against each other causes friction. When a fault suddenly moves on land, you get an earthquake. The fault has to move in the vertical sense. Performance Standard: The learners shall be able to: participate in decision making on where to build structures based on knowledge of the location of active faults in the 8. Earthquakes can cause immense damage to buildings and infrastructure, trigger tsunamis, and reshape the Earth's surface with their force. Active faults are planes of weakness along which movement takes place. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other. A fault is a break in the earth's crust along which movement can take place causing an earthquake. I hope you enjoy your time here on Brainly! S wave. For example, a streambed that crosses the San Andreas fault near Los Angeles is now offset 83 meters (91 yards) from its original course. Stresses in the earth's outer layer push the sides of the fault together. The fault surface can be vertical, horizontal, or at some angle to the surface of the earth. How does the energy from an earthquake reach Earth's surface . Can you see by these hand movements how they can create earthquakes? Plate Tectonic Boundaries: Transform, Divergent, and Convergent . The term fault is used to describe the boundary between tectonic plates. Surface features that have been broken and offset by the movement of faults are used to determine how fast the faults move and thus how often earthquakes are likely to occur. Explain why the UK and other places are suitable for some activities based on its climate. B. ii. The government is divided into branches. A fault is a fracture or zone of fractures between two blocks of rock. The formation of fault along the rocks that results to movement of the crust.B.) Most faults produce repeated displacements over geologic ... Unlocking of terms: • Fault – is a break in the Earth’s crust, and along the break which movement has occurred. An earthquake is caused by a sudden slip on a fault, much like what happens when you snap your fingers. Answer: Faults form because crust gets cracked when plates move apart along divergent plate boundaries. 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