what are three type of stress causes earthquakes
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The three types of stresses of an earthquake? Making the world better, one answer at a time. Shearing (stress that pushes a mass of rock in opposite directions), tension (stress that stretches rock so that it becomes thinner in the middle), and compression (stress that squeezes rock until it folds or breaks).aking the world better, one answer at a time. Shearing (stress that pushes a mass of rock in opposite directions), tension (stress that stretches rock so that it becomes thinner in the middle), and compression (stress that squeezes rock until it folds or breaks).
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Deformation of Rocks One type of stress that we are all used to is a uniform stress, called pressure. A uniform stress is a stress wherein the forces act equally from all directions. In the Earth the pressure due to the weight of overlying rocks is a uniform stress, and is sometimes referred to as confining stress. If stress is not equal from all directions then we say that the stress is a differential stress. Three kinds of differential stress occur. Tensional stress (or extensional stress), which stretches rock; Compressional stress, which squeezes rock; and; Shear stress, which result in slippage and translation. When rocks deform they are said to strain. A strain is a change in size, shape, or volume of a material. Stages of Deformation When a rock is subjected to increasing stress it passes through 3 successive stages of deformation. 1  Elastic Deformation -- wherein the strain is reversible. 2  Ductile Deformation -- wherein the strain is irreversible. 3  Fracture - irreversible strain wherein the material breaks.
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What Causes Earthquakes: Information about Faults, Plate Tectonics and Earth Structure Ans: An earthquake is caused by a sudden slip on a fault. Stresses in the earth's outer layer push the sides of the fault together. Stress builds up and the rocks slips suddenly, releasing energy in waves that travel through the earth's crust and cause the shaking that we feel during an earthquake.ns: 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. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to the other.
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Faults The sense of stress determines the type of fault that forms, and we usually categorize that sense of stress in three different ways: 1  compression, 2  tension, and. 3  shear.
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Deformation of Rocks Three kinds of differential stress occur. 1  Tensional stress (or extensional stress), which stretches rock; 2  Compressional stress, which squeezes rock; and. 3  Shear stress, which result in slippage and translation.
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Volcanic Earthquakes Volcanically triggered earthquakes have the potential to cause cracks, ground deformation, and damage to manmade structures. They typically are much smaller than earthquakes caused by non-volcanic sources. The largest felt volcanic earthquake in the Cascades was a magnitude 5.5 in 1981, under Mount St. Helens.
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- An earthquake is a shaking of the Earth's crust. They strike without warning and vary greatly in severity. Earthquakes can be caused by: 1  underground volcanic forces.2  the breaking of rock under the Earth's surface. 3  a sudden movement along an existing fault line.n earthquake is a shaking of the Earth's crust. They strike without warning and vary greatly in severity. Earthquakes can be caused by: 1  underground volcanic forces.
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- (Also man-made due to nuclear explosions) 2. Tectonic Earthquakes. Most earthquakes occur at plate margins due to. tension, compression or shearing forces. Rocks at plate margins are in constant motion. and are being pushed, pulled, bent, twisted and. folded. Inevitably at some point they must break or. crack to produce FAULTS!!
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- Your Earthquake Risk. Three main factors together determine seismic risks: the level of seismic hazard, the number of people and amount of property that are exposed to seismic hazards and how vulnerable these people and property are to the hazards.
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What Type of Stress Is Placed on a Normal Fault? A fault along the Earth's crust is identified by the corresponding type of stress that caused its formation. In geology, a stress is defined as the amount of force exerted on a unit of surface area. Generally, shear stress forms transform faults, compressive stress creates reverse faults and tensional stress produces normal faults.
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Volcanic Eruptions: What Causes Volcanoes to Erupt Earthquakes are caused due to the deformation of the Earth's crust which occurs die to the movement of the lithospheric tectonic plates. Where these plates collide with each o…ther or slide past each other (at convergent and transform boundaries), stress builds up within the crust.
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Fracking-related Earthquakes Scientific and government research indicates that fracking can cause earthquakes in two ways: 1  Primarily, during the fracking process:  [Earthquakes] were caused by fluid injection during hydraulic fracturing in proximity to pre-existing faults..
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Faults Handily, these three senses of stress also correlate with the three types of plate boundaries. Compressive stress happens at convergent plate boundaries where two plates move toward each other. Tensional stress happens at divergent plate boundaries where two plates are moving away from each other. Shear stress is experienced at transform boundaries where two plates are sliding past each other. Artist's cross section illustrating the main types of plate boundaries. Source: Cross section by José F. Vigil from This Dynamic Planet—a wall map produced jointly by the U.S. Geological Survey, the Smithsonian Institution, and the U.S. Naval Research Laboratory.
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- 1 There are three types of stress: compression, tension, and shear. 2  Stress can cause strain, if it is sufficient to overcome the strength of the object that is under stress. 3  Strain is a change in shape or size resulting from applied forces (deformation).
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Earthquake Every tremor produces different types of seismic waves, which travel through rock with different velocities: 1  Longitudinal P-waves (shock- or pressure waves) 2  Transverse S-waves (both body waves) 3  Surface waves — (Rayleigh and Love waves)
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- The shaking motion of an earthquake is the result of a sudden release of energy. Earthquakes are caused when stress, building up within rocks of the earth's crust, is released in a sudden jolt. Rocks crack and slip past each other causing the ground to vibrate. Cracks along which rocks slip are called faults. They may break through the ground surface, or be deep within the earth.
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Volcanic Earthquakes Volcanic Earthquakes Earthquakes related to volcanic activity may produce hazards which include ground cracks, ground deformation, and damage to manmade structures. There are two general categories of earthquakes that can occur at a volcano: volcano-tectonic earthquakes and long period earthquakes. Earthquakes produced by stress changes in solid rock due to the injection or withdrawal of magma (molton rock) are called volcano-tectonic earthquakes (Chouet, 1993). These earthquakes can cause land to subside and can produce large ground cracks.
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High School Earth Science/Stress in the Earth's Crust Stresses that push toward each other. This causes a decrease in the space a rock takes up. confining stress The stress due to the weight of material above a buried object. Confining stress reduces volume but causes no deformation. deformation The change of shape that a rock undergoes when it has been altered by stresses. Also called strain. dip-slip fault
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Answer help reset a c b lowest density highest Convergent boundaries occur where two plates collide into each other, and are associated with compressional stress. What type(s) of stress is associated with transform plate boundaries? Recall that strike­slip faults are what enable plates to slide past each other at transform boundaries. The three diagrams below show the three types of stresses: tension, compression, and shear.
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High School Earth Science/Nature of Earthquakes The earthquake happens when so much stress builds up in the rocks that the rocks rupture. An earthquake's energy is transmitted by seismic waves. Each year there are more than 150,000 earthquakes strong enough to be felt by people and 900,000 recorded by seismometers.
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- What causes earthquakes? The shaking motion of an earthquake is the result of a sudden release of energy. Earthquakes are caused when stress, building up within rocks of the earth's crust, is released in a sudden jolt. Rocks crack and slip past each other causing the ground to vibrate. Cracks along which rocks slip are called faults.
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Plate Tectonics, the Cause of Earthquakes Most of the continental mountain belts occur where plates are pressing against one another. The white squares locate examples given here of the different tectonic and earthquake environments. (topography from NOAA) There are three main plate tectonic environments: extensional, transform, and compressional.
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