St. Helens Research Paper

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Discuss the Extent to which Tectonic hazards can be Monitored 40 marks Monitoring tectonic hazards involves being able to predict when they will occur and the extent of the damage they may cause and in this way we can prevent maximum harm taking place. When predicting volcanoes it’s important to look at their history of previous eruptions and the type of volcano. The most recent research was in time prediction using shock waves that are produces as magma reaches the surface which expands cracks or breaks the surface of the volcanic rock. This was partly successful in a Mexican eruption in 2002 of Popacatapelt. Using the history of eruptions allows us to assess what is likely to happen in the future, for example, in the eruption of Mt. St. Helens in 1980 the volcano erupted on its side from a large bulge this left a huge crater as seen in the image. Because of this deep crater we know that neither a large debris avalanche nor a major lateral blast will like happen again. Mt. St. Helens is a very closely monitored volcano due to its previous eruptions. It is one the most seismically active volcanoes in the Washington and Oregon Cascades. Since establishing a full seismic monitoring network in 1980 the millions of…show more content…
Gases dissolved in magma provide the motive force of volcanic eruptions, sulphurous volcanic gas and visible steam are usually the first things noticed on an active volcano as well as others that escape unseen for example through hot fumaroles, active vents, and porous ground surfaces. The limitations of taking these samples are remote location of these sites, intense and often hazardous fumes, frequent bad weather, and the potential for sudden eruptions can make regular sampling sometimes impossible and dangerous. Measuring gases remotely is possible but requires ideal weather and the availability of suitable aircraft or a network of roads around a
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