LESSON 14.12 How do volcanic eruptions affect people?
LEARNING INTENTION By the end of this lesson, you should be able to:
• describe the impact of volcanoes on people and the environment • identify strategies to reduce the impact of a volcanic eruption.
Tune in Volcanoes can have devastating impacts on the environment and the population.
FIGURE1 Eyjafjallajökull eruption, Iceland
In pairs or small groups, complete the following tasks. 1. Make a list of all the risks associated with living near volcanoes. 2. Discuss reasons why people might want to live near volcanoes. 3. Under what conditions do you think it might be worth the risk of living near a volcano? Share your responses with the class.
14.12.1 The worst volcanic eruptions Volcanic eruptions both create and destroy landscapes. Most volcanic eruptions do not strike randomly but occur in specific areas, such as along plate boundaries. In some places there are high concentrations of people living near volcanoes. Most of the world’s active above-sea volcanoes are located near convergent plate boundaries where subduction is occurring, particularly around the Pacific Basin. This is also the location of settlements across many countries. Over many years, volcanic eruptions have caused deaths and great damage.
TOPIC14 Geomorphological processes and hazards
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