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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within hundreds of miles away. The volcano ash’s causes airplane engines to fail‚ destroys crops‚ contaminates water‚ and damages electronics and machinery. When the ash touch’s the ground‚ burying everything‚ sometimes even make’s buildings to collapse. Mount St. Helen’s produced more than 490 tons of ash that fell over some many miles. All volcanos are dangerous. They are all scattered all over the world and we don’t know when they are going to blow. The three volcanos I picked were pretty interesting
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Introduction A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include floods‚ volcanic eruptions‚ earthquakes‚ tsunamis‚ and other geologic processes. A natural disaster can cause loss of life or property damage‚ and typically leaves some economic damage in its wake‚ the severity of which depends on the affected population’s resilience‚ or ability to recover. An adverse event will not rise to the level of a disaster if it occurs in an area without
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than the direct effects of lava flows or ash showers are the greatest reason for loss of life. An example is the eruption from the Laki volcano in 1783 (see first link below) in which an estimated 25% of the population of Iceland was killed. "The system erupted over an 8 month period during 1783-1784 from the Laki fissure and the adjoining Grímsvötn volcano‚ pouring out an estimated 14 km3 (3.4 cu mi) of basalt lava and clouds of poisonous hydrofluoric acid & sulphur dioxide compounds that killed
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On January 23rd 1973 a new volcano unexpectedly erupted in the Vestmannaeyjar archipelago‚ southwest of Iceland. The new volcano was a fissure 1.25 miles long and only 1100 yards from the center of town‚ also named Vestmannaeyjar. The new volcano was named Heimaey. The town was mostly evacuated over the next few days and the lava slowly flowed towards town and the mouth of the harbor for the next seven months. Vestmannaeyjar is the only good harbour in that part of Iceland‚ and was the base for a
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Philippine provinces of Zambales‚ Tarlac‚ and Pampanga. Mount Pinatubo is part of a chain of composite volcanoes along the Luzon arc on the west coast of the island. The arc of volcanoes is due to the subduction of the Manila trench to the west. The volcano experienced major eruptions approximately 500‚ 3000‚ and 5500 years ago. Up to 800 people were killed and 100‚000 became homeless following the Mount Pinatubo eruption‚ which climaxed with nine hours of eruption on June 15‚ 1991. On June 15‚ millions
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located in Sicily‚ Italy Europe’s highest (3‚300m)and most active volcano Supports rich agricultural land Displays dramatic volcanic scenery created by several calera collapses There have been at least 60 flank eruptions and many summit eruptions since AD1600‚ around half have occurred since the beginning of the 20th century Since 2001 it has seen an eruption every year Physical reasons for the event: Mt Etna is a composite volcano created from the subduction of the African plate beneath the Eurasian
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