Analyse the Factors That Cause Differences in the Hazards Posed by Volcanoes Around the World.

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Submitted By robgresham
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Analyse the factors that cause differences in the hazards posed by volcanoes around the world.
Volcanoes and their hazards have posed many problems across the world since they were formed. Due to their often aggressive activity they have been damaging to variations of human life. However these hazards are different depending on many factors, such as the nature of the hazard, the area where these hazards occur and the level of preparedness that area has. In this essay these factors will be studied to see if the effect of these volcanic hazards varies around the world.
When a volcanic event occurs there are many hazards that could come from it. The primary being tephra; which is solid material varying in size that is ejected into the atmosphere, pyroclastic flows; which are very hot high-velocity flows, volcanic gases including carbon dioxide, carbon monoxide and lava flows. The secondary being lahars; which are volcanic mud flows, flooding through melting of ice caps, tsunamis from giant caldera forming events, volcanic landslides and climate change due to the ejection of vast amounts of volcanic debris into the atmosphere that can reduce global temperatures. These hazards have caused incidents such as when lahars devastated the Colombian town of Armero after the eruption of Nevado Del Ruiz in November 1985. From this we can deduce the high level destruction that these hazards can cause.
Two volcanic events where the hazards have affected the area around them are the Chances Peak eruption in Montserrat, 1995 and the Mount Etna eruption in Sicily, 2001. For example at Chances Peak there were fires caused by pyroclastic flows that killed 19 people, which shows the damage to human life that this hazard can cause. This group of people that were killed were farmers who chose not to evacuate with the fellow 11,000 people after the warning signs of the…...

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