Compare and Evaluate Two Contrasting Eruptions and Evaluate How Damaging They Were

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Compare and evaluate two contrasting eruptions and evaluate how damaging they were. I am going to compare the Eyjafjallajokull eruption of 2010 and the Chaiten eruption of 2008. Both eruptions were damaging in different ways: The town of Chaiten is in Chile, an LEDC, and the Chaiten volcano had not erupted for 9500 years prior to May 2, 2008. Chaiten is part of the longest chain of Fold Mountains in the world, the Andes Mountains, and sits above the Peru-Chile subduction zone. In this convergent boundary, the denser Nazca Plate is being subducted beneath the less dense continental lithosphere of the South American tectonic plate. As the plate descends it causes earthquakes in the Benioff zone, and volcanoes occur here because of melting of the plate in the asthenosphere. The southern end of the plate dips at a steep angle, while the northern end may be experiencing flat-slab subduction (in which the oceanic plate slides below the continental plate at a very low angle). A low angle of subduction may explain the relative lack of volcanic activity in the Northern part of Chile, compared to the extremely active southern volcanic mountains. Whereas Eyjafjallajokull is in Iceland, an MEDC. The initial eruption of Eyjafjallajokull lasted from 20th March- 23rd June, however the eruption was declared officially over in October 2010. It is located on a spreading ridge, where convection currents are driving apart the North American plate (moving west) and the Eurasian plate (moving east) along a divergent plate boundary. This is creating the Mid Atlantic ridge, along which the age of the rocks either side of the ridge and the palaeomagnetism have been used as evidence of the plate tectonics theory. Both eruptions caused disruption to aviation, particularly Eyjafjallajokull which was a relatively small eruption. The eruption caused enormous disruption to air travel across
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