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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plates converge or diverge. Not only are volcanoes found in these areas but also where the Earth’s crust is stretching or thinning. There are volcanoes that form away from plate boundaries in areas that are called “hot-spots”. An example of “hot-spot” volcano formation is the Hawaiian Islands. Figure 1: (Kreger‚ 2010) The image above shows that volcanoes are created by hot magma that rises from the Earth’s core and expels through the cracks of the upper mantle and ocean crust. The movement of the Earth’s
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What is Volcanic Eruption? A volcano can be simply defined as a rupture or an opening on the crust of a planet like earth. This opening allows hot ash‚ molten rock and gases to blow off from the underground spaces. Volcanoes generally acquire shape of a mountain. Volcanoes are usually found at places where tectonic plates get converged or diverged. But there existence at a particular place depends upon many environmental and geological factors. Volcanoes can also occur at a place because of
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Mount St. Helens. Mount St Helens is a volcano in a national park in Washington State‚ USA. It had been thought to be dormant for many years‚ until in 1980‚ when it suddenly burst to life. On March 20th‚ the huge volcano suddenly ‘woke up’ when there was a 4.1 Richter scale earthquake‚ and over the next 28 days‚ there were hundreds of other recordable earthquakes. On the 25th March‚ there were 22 significant earthquakes in just 8 hours. On March 27th‚ a huge earthquake ripped a massive crater
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Decade Volcano by the United Nations. From about 35‚000 to 15‚000 years ago‚ Etna experienced some highly explosive eruptions‚ generating large pyroclastic flows‚ which left extensive ignimbrite deposits. Ash from these eruptions has been found as far away as Rome‚ 800 km to the north. Eruptions of Mount Etna: 2001‚ 2002–2003‚ 2004–2005‚ 2008-2009 and 2011 I It’s been nearly 350 years since Mt. Etna blew its top in a major way. Until 2011‚ when Europe’s largest active volcano spewed
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