Unit 10: Option D — Geophysical Hazards
Topic 10.2: Geophysical hazard risks Questions
Practice 20 exam-style questions for IB Geography SL Topic 10.2. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Suggest4 marks
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Suggest two reasons why two earthquakes of similar magnitude can cause very different numbers of deaths.
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Outline two volcanic hazards and describe how each can harm people or property.
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A mass movement is the downslope movement of rock or soil under…
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A volcanic mudflow of ash and water that races down valleys is a…
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Which measure describes how strongly the shaking is felt at one place?
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An earthquake destroyed hospitals, schools and homes across a city. Outline two long-term impacts this damage could have on the society there.
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Outline two secondary hazards of a major earthquake, and explain how the severity of each changes with distance from the epicentre.
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The hazard-event profile below compares the 2010 Haiti and 2011 Tohoku earthquakes (each criterion scored 1 = low to 7 = high).
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The table lists five recent earthquakes with their magnitude and the number of deaths recorded.
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The deadliest volcanic hazard, because it is fast and super-hot, is the…
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A tsunami is most directly triggered by…
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The table gives the time it took the 2004 Indian Ocean tsunami to reach five coastlines after the earthquake.
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Explain why a shallow-focus earthquake usually does more surface damage than a deep-focus earthquake of the same magnitude.
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The point on the surface directly above an earthquake's focus is the…
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The largest and most frequent earthquakes mostly occur at…
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Which secondary hazard can stay destructive thousands of km from the epicentre?
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The table summarises the area covered by each lava-thickness band after a recent eruption, and the line of longitude each band sits nearest.
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Explain why a pyroclastic flow usually causes far more deaths than a lava flow from the same volcano.
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Explain how a major landslide can affect the social and economic well-being of a community.
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Outline how a volcanic eruption or an earthquake can trigger a mass movement.
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