• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Volcanic Case Studies

Extracts from this document...


Volcanic Case Studies Introduction Globally the risk of death or injury due to volcanic hazards are very small. However volcanoes attract disproportionate interest and are the first hazard to be considered in detail for this module. Current population trends and economic necessity mean that an increasing number of people live close to volcanoes. The flanks of volcanically active mountains are often densely settled due to their fertile volcanic soil which is rich in potassium. This is particularly the case in the tropics where soil fertility declines quickly as intense rainfall causes leaching. For some nations, notably island states, volcanic soils are the only rich soils available. For example in Indonesia population densities are positively correlated with maps of volcanic activity. As with all hazards there are natural and human components to their occurrence and aftermath. It is the interaction between society, technology and natural processes that this course module seeks to explore. ...read more.


Pinatubo Resources Bishop p 81-83 and 30-35 Nagle p 27-28 World map of country locations * http://www.geo.mtu.edu/volcanoes/pinatubo/ Do you want to know what a lahar looks like? Or what the eruption was like - this is a Pinatubo gallery * http://wrgis.wr.usgs.gov/fact-sheet/fs113-97/ USGS report on 1991 eruption and continuing hazards * http://wrgis.wr.usgs.gov/fact-sheet/fs115-97/ USGS on effects of monitoring and warning systems * http://wrgis.wr.usgs.gov/fact-sheet/fs114-97/ USGS report on the lahars in the 1991 eruption, their cause, their effects and continuing hazards http://pubs.usgs.gov/pinatubo/contents.html This is an amazing site of a book contents, it is for students with further interests, see for example the information on people in the town of Luzon * Denotes important information June 12 1991 explosion of Pinatubo volcano. Source: http://www.geo.mtu.edu/volcanoes/pinatubo/volcano/ Questions ? Describe the natural processes and tectonic situation that led to the eruption of Mount Pinatubo. ? Describe the type of eruption and volcanic hazards associated with the eruption of Mount Pinatubo. ? Apart from pyroclastic surges lahars present the greatest threat to human life. How were lahars created in the Pinatubo eruption? ...read more.


Goma, on the shore of L. Kivu, is normally a town of 500,000 people. Why do so many people risk living in such a vulnerable area? Have there been any attempts to mitigate the effects of eruptions? ? Describe the ways in which scientists were able to monitor the mountain and the actions that were the results of this monitoring. Do you think that these were effective? ? Describe the long-term effects of the volcanic hazards resulting from the 2002 eruption and the continued vulnerability of the local populations. For both volcanoes: Lloyd Timberlake, who has written widely on environmental hazards asserts that, "Volcanic eruptions are not 'serious' disasters in terms of numbers of people killed or even affected." Write an essay discussing this statement with reference to the impacts of the Pinatubo eruption and the eruption of Nyiragongo. You may support your conclusion by reference to other volcanic eruptions that you know about. Later in the course you will be able to compare the impacts of other hazards. At this stage, your essay should concentrate on whether the eruptions were 'serious' for the communities and environments affected by these two volcanoes. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Hazardous Environments section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Hazardous Environments essays

  1. A Report Of The Investigation into Health and Safety In The Workplace

    * Treat for the casualty for shock. Chemical burns are caused by acids, alkaline or other chemicals coming in contact with the skin. They are not usually caused by heat the burn is a result of the chemical destroying body tissues. You need to: * Thoroughly wash the area with large amounts of water, for example, under a running tap or shower.

  2. comparing shrewsbury an old town an telfrd a purpose build new town

    in Shrewsbury no-one travelled for business, leisure or historical architecture. One person said that they were just visiting; two people travelled to Shrewsbury for other and eight people went to Shrewsbury for its leisure facilities. In Telford no-one travelled for business or other.

  1. What are the variations in the effects and responses to volcanic activity between LEDCs ...

    perished as well as all birds and most small mammals. Many burrowing rodents, frogs, salamanders, and crawfish, managed to survive because they were below ground level or water surface when the disaster struck. Fisheries: The Washington Department of Fisheries estimated that 12 million Chinook and Coho salmon fingerlings were killed when hatcheries were destroyed.

  2. Cold Environments

    At the South Pole, average annual precipitation can be as low as 50mm, and is only due to the freezing conditions that the precipitation is stored which gives the appearance of an area that receives plenty of precipitation. ET climate types however generally receive a little more precipitation to the

  1. Assess The View That Hazardous Events Have More Short- Term Than Long-Term Impacts On ...

    I chose this case study as it was recent and could contrast impacts with the flooding case study. My first case study looks at a physical event that occurred in America in 1980. It studies a hazard from the Earth Systems module.

  2. Tectonic Processes.

    Earthquakes emit body waves (travel through the earth) and surface waves. It is surface waves that cause most damage as they impact on what is on the surface of the earth. They can cause buildings to collapse and underground pipelines to be broken.

  1. Chaiten Volcanic Eruption Case Study

    An evacuation of 1500 people from the town to shelters at Castro and Puerto Monnt began, with priority being given to the most vulnerable groups of people- the sick, the elderly and pregnant women.

  2. Volcanic and seismic events are major pieces of evidence towards proving that plate-tectonics theory ...

    When magnetic reversals occur, they are recorded in the newly formed rocks along the midocean ridge The result is the formation of symmetrical bands of volcanic rock with alternating magnetic polarities. This final piece of evidence convinced the great majority of geologists that seafloor spreading indeed occurs.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work