Introduction A volcano is an opening‚ or rupture‚ in a planet’s surface or crust‚ which allows hot magma‚ volcanic ash and gases to escape from the magma chamber below the surface. How is a volcano formed? Most volcanoes are formed by the movement of tectonic plates on the surface of the earth. These plates are basically huge pieces of rock that ‘float’ on the mantle (a layer of the earth that is sort-of liquid rock). The tectonic plates are in constant motion‚ albeit very slow motion. They sometimes
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Name___________________________ Date_____________Period__________ Volcano Explorer http://dsc.discovery.com/convergence/pompeii/interactive/interactive.html Please answer the following questions before you enter the site…. Prior Knowledge 1. What is a volcano? Pressure volves that release energy from deep within the earth 2. What is the largest volcano? Pompeii 3. What is Pompeii A fatty volcano Lab Questions….(watch the intro) 1. What is a volcano? Pressure volves that release energy from
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Earthquake‚ shaking of the Earth’s surface caused by rapid movement of the Earth’s rocky outer layer. Earthquakes occur when energy stored within the Earth‚ usually in the form of strain in rocks‚ suddenly releases. This energy is transmitted to the surface of the Earth by earthquake waves. The destruction an earthquake causes depends on its magnitude and duration‚ or the amount of shaking that occurs. A structure’s design and the materials used in its construction also affect the amount of damage
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To what extent can preparedness and planning mitigate the effects of Volcanic Hazards (40 marks) More than 500 Million people live within 50 miles of a volcano‚ the potential therefore exists for major loss of life and damage to property and infrastructure‚ particularly when urban areas are situated in close proximity. Mitigation of such losses can be achieved through careful preparedness and planning. Preparedness is the process of ensuring that an organization has complied with the preventive
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Cause and Effect of Volcanoes Any natural opening in the Earth’s crust‚ called a fissure‚ where melted rock‚ ash‚ gases‚ and steam come out is called a volcano. Volcanoes look like mountains‚ but they are really flat land that is pushed upward because of the pressure below the earth. The pressure comes from hot magma and gases that build up below the earth’s surface and that work up to the surface through cracks in the earth’s plates. As it is forced up to the surface‚ the gases and magma push
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as Mount Pelée which erupted in 1902. In the town of St Pierre there was early warning or an eruption from the volcano. From mid-April animals in the area started dying from poisonous gas realised from the volcano. In early may more signs where showing to an eruption in the near future this made the inhabitants of the town nervous and some moving out to a safe distance from the volcano. However there was an election due to take place on the 10th May so the current governor did not want the population
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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 has a low density as it is made from an igneous rock called basalt. It is 6-8 km thick. CONTINENTAL CRUST: this forms the land‚ made from granite which is low density
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plume will burn through the crust to form an underwater volcano which will eventually grow large enough to become an island like the many others. Since the crustal plate is in constant motion the plates move over the mantle plume‚ and many years later a chain of volcanoes are created like the Galapagos. Volcanoes get older in the direction of plate movement‚ so the Galapagos volcanoes get older to the south-southeast‚ and the oldest volcano is named‚ Espanola. The Galapagos mantle plume is over 90
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crazy. You might ask how many times does one year? You might say well it can’t erupt that often. Well if you say that your wrong. Such as Italy’s Stromboli‚ the volcano. Would your jaws drop if I told you that volcano Stromboli erupted 50-70 times in one year! Wowzas that’s more than what you see on the news in a month. The word volcano is a very
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eruption. The book starts out in Pompeii during the eruption‚ but everyone assumes it’s just the weather heating up as summer ends. However‚ one man is curious to find out what is happening and after a few days of research‚ he finds out that the volcano and its ashes will destroy the Bay of Naples‚ Pompeii‚ and other cities surrounding Mt. Vesuvius. He and Pliny the Elder try to lead people to safety but the book ends with Pliny dying trying to send people away on war ships and no one finding the
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