The+causes+and+effects+of+a+volcanic+eruption-+case+study+Montserrat

__Learning objective:__
To be able to describe and explain the causes and effects of a volcanic eruption on the people and the environment, e.g. in Montserrat.

__Task:__

INTRODUCTION:
Students enter the classroom and are directed to form teams of two or three. An provides a simple 5Ws- type starter. A brief outline of the scenario is given to the students. Use the starter video (on T drive)

Activity 1: RISK ASSESSMENT and HAZARD PLANNING
The "teleprinter" [|Eruption powerpoint] is set to run for approximately 22 minutes. The geologist in the team annotates the [|A3 map] with details of the volcanic events. Following each report from the teleprinter, the crisis manager makes an [|appropriate decision]. The [|governor (aka teacher) assesses each group's performance] in the risk assessment continually. This adds an element of competition between the groups, and provides an incentive to make the right decision under pressure.

Activity 2: PRODUCING A HAZARD MAP
Following the completion of the first activity, the Power Point is advanced manually to reveal the next task. The teams have approximately 8 - 10 minutes to prepare a map that divides Montserrat into three zones according to the instructions. This activity should see close co-operation between all three members of the team

PLENARY:
Once time has elapsed for producing the hazard map the teams should display their finished work. This can be compared with the real hazard map produced by the MVO in September 1997. The real map is available as a [|Google Earth overlay], a [|Word doc] or a live [|web page]. If time allows, the highest performing group in the decision-making task and the hazard mapping, should be encouraged to talk about their successful strategies.



__**Case study detail:**__ media type="custom" key="24329132" media type="custom" key="10408652"

Full case study documentary:

media type="youtube" key="RGMUmT49Mbo" height="315" width="420"

media type="youtube" key="L72TsjNTf3o" height="315" width="560"

A good link to help you with some information.... []

The case study write up should include the following points (as always remember to include case study specific details).

1. Describe the location of Montserrat- you could include a sketch map 2. What caused the eruption? Ensure specific plate boundaries are included and named areas 3. List the Primary and Secondary hazards of the Soufriere Hills volcano 4. Which part of the island was evacuated first, and when did this take place ? 5. What is a pyroclastic flow ? 6. Describe the long and short term effects of the eruption 7. How is the hazard of the volcanic activity 'managed' ? 8. Why is the fact that the south of the island has been most badly hit a particular problem for the people of Montserrat ? 9. What role did the British have to play in the evacuation of the island?

__**Plenary/ recap:**__

Think of these as 'bullet points' - a useful REVISION technique is to try to reduce any topic down to just 10 bullet points which contain the main aspects of what it is you want to get across....