14.12.3 How to prepare for volcanic eruption Can volcanic eruptions be predicted? What are the warning signs? How can the risk of death, injury and damage be reduced? With about 500 million people living close to active volcanoes, it is important to monitor changes in seismic activity, prepare emergency plans, and try to predict eruptions to give residents time to evacuate safely.
14.12 SkillBuilder activity INTERPRETING AND ANALYSING GEOGRAPHICAL DATA AND INFORMATION
1. a. Refer to an atlas map showing world population density, settlements and the location of volcanoes. Make notes on the patterns you see. Discuss how close the settlements are to volcanoes and what populations they have. b. Write two statements that describe the relationship between population density, settlements and volcano locations. Explain how this relates to people’s risk. 2. Construct a table summarising the measures required for living with volcanoes. a. Use the table to help you classify the information in FIGURE3 . b. State which of the measures you think is most effective. Give three reasons for your answer.
14.12
Exercise
Learning pathways LEVEL1 1, 2, 3
LEVEL2
LEVEL3
4, 6
5, 7, 8
REMEMBER AND UNDERSTAND 1. Complete the following statements by filling in the blanks.
Volcanic eruptions both _________ and destroy landscapes. Most eruptions do not occur randomly but occur in a specific area, such as along ____________ ____________. In some places there is a high number of ______________ living near volcanoes. Most of the world’s active volcanoes are located near _____________ boundaries where subduction is occurring. This is also the location of many ____________ across many countries. As a result, volcanic eruptions have caused deaths and great ___________. 2. Identify which of the following are advantages and which are disadvantages of living near a volcano. a. Possibility of eruption causing the destruction of natural environment b. Fertile soils for agriculture c. Possibility of eruption causing deaths d. Geothermal energy that can be used for heat and electricity e. Natural hot springs for tourism f. Possible damage caused by eruption g. The smell of sulphur 3. Determine whether the following statement is True or False. Geothermal energy is not a renewable resource. 4. Define volcanic loam and identify where it is found. ANALYSE AND APPLY 5. Create a photo sketch of FIGURE2 and label the following: volcano, volcanic plain, lava flows, farmland, settlement.
TOPIC14 Geomorphological processes and hazards
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