Natural Disasters: An examination of the causes‚ effects‚ and options available to mitigate natural disasters‚ such as earthquakes‚ volcanic eruptions‚ landslides‚ subsidence‚ flooding‚ severe weather‚ and meteorite impacts. Natural Disaster Information: 1. Natural Disasters in General 2. Earthquakes 3. Volcanic Eruptions 4. Tsunami 5. Landslides 6. Floods 7. Weather Related Disasters 8. Meteorite Impacts NATURAL DISASTERS IN GENERAL: Natural disasters This being my senior
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first though up by a man named Albert Wegener in 1912 but the idea of moving continents was not taking seriously until the 1960. This study is called plate tectonics‚ and it helps explain the continental drift‚ the spreading of the seafloor‚ why volcanoes erupt and how mountains are formed. The mountain range that runs from the northern tip of Alaska to the southern tip of South America were formed by the buckling of crustal rocks that crash into the edge of North and South America. The land folds
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or the relief given or purely doing nothing. This will vary depending on the type of tectonic hazard. For this purpose a tectonic hazard is a physical occurrence resulting from the movement or deformation of the earth’s crust‚ this can be volcanoes‚ earthquakes or tsunamis. After researching this topic I found several useful sources. One of my ain sources is the Edexcel A2 Geography text book by Dunn et al‚ I found this to be very useful because it included factual relevant information which is very
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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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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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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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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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“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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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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