can cause seismic and volcanic activity. However‚ earthquakes and volcanoes also occur within the plates rather than their edges‚ an example of which is the Hawaiian volcanoes that occur above a stationary hot spot beneath the Pacific plate. In the late 1960s the theory of plate tectonics was developed by Alfred Wegener and provides an explanation for the Earths tectonic behaviour‚ particularly the global distribution of mountain building‚ earthquake activity‚ and volcanism in a series of linear belts
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“EVALUATE HOW PLATE TECTONICS THEORY HELPS OUR UNDERSTANDING OF THE DISTRIBUTON OF SEISMIC AND VOLCANIC EVENTS” In this essay I am going to look in detail at plate tectonic theory and how it can be used to explain seismic and volcanic events worldwide. However‚ I will also look at other potential causes of these events‚ and some evidence that does not follow the theory that all these events are caused by plate boundaries. I am going to look at a range of case studies from differing scales
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move away from each other and are found in the middle of major oceans. These boundaries help to form underwater volcanoes and create new oceanic crust. Transform plates are plates that slide past each other and this is what causes earthquakes. If
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Alex Chin Prof. Julianne Altenbernd English 60 15 May 2014 Harbor Wave The earthquake that generated the great Indian Ocean tsunami of 2004 is estimated to have released the energy of 23‚000 Hiroshima-type atomic bombs‚ according to the U.S. Geological Survey. The Indian Ocean tsunami traveled as much as 3‚000 miles (nearly 5‚000 kilometers) to Africa‚ arriving with sufficient force to kill people and destroy property. By the end of the day more than 150‚000 people were dead or missing and
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“Volcanic and seismic events are major pieces of evidence towards proving that the plate tectonic theory is valid” Discuss the extent to which you agree with this statement (40). The theory of plate tectonics explains the structure and motion of the Earth’s lithosphere. The theory states that the Earth’s crust is split into large sections called tectonic plates‚ and these move relative to one another creating boundaries at which the plates converge‚ diverge or move past each other. These plates
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The Earth’s structure The crust is the surface of the earth; it is a rock layer forming the upper part of the lithosphere. The lithosphere is split into tectonic plates. The plates move slowly on a layer called the asthenosphere. Meteorites can tell us what the earth is like-these are rock and metal fragments which fall to earth from space. We know the earth’s core is hot through hot spring geezers and volcano lava. 2 types of crust OCEANIC CRUST: it is found under the oceans; it’s thin and
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rock‚ and‚ therefore‚ no volcanic activity or formation of new crust. Despite the absence of volcanic activity‚ these margins are tectonically extremely active and are associated with powerful‚ considerable magnitude‚ earthquakes‚ being the sites of extensive shallow focus earthquakes. Transfer faults are mainly found on the ocean floor‚ where they offset mid ocean ridges and enable the ocean floor to spread at different rates. At conservative plate boundaries‚ there are very few features to be seen
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to every affected area. A hazard is any source of potential damage‚ harm or adverse health effects. A volcanic hazard is any threat to life and infrastructure due to volcanic activity and related situations such as a landslide near the volcano. Volcanoes can be very dangerous and therefore present many hazards towards both people and land. They have the ability to kill and destroy‚ ruining livelihoods and destroying large land masses. The extent of the hazard can differ depending on how prepared
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represents the meaning of plates and boundaries. As an example of activity is an earthquake‚ which is caused by two plates like the Eurasian and pacific plate pushing towards each other‚ pushing the land upwards causing a mountain as well as an earthquake. The plates are pieces of land that make up the outer crust‚ these could move together‚ move apart or move alongside each other resulting in mountains‚ volcanoes and earthquakes‚ this happens deep below the surface and as the earth is spinning and moving
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that every time the metallic elements align themselves in the opposite direction. In the case of constructive plate boundary plate tectonic theory has helped our understanding as we can now determine that at constructive pate boundaries fissure volcanoes are more common here‚ therefore suggesting the nature of a potential eruption may not be as destructive as a
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