Starter quiz
- What is the point inside the Earth where an earthquake starts?
- Epicentre
- Crater
- Focus ✓
- Fault line
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- Which type of plate margin causes earthquakes but not volcanoes?
- Destructive
- Constructive
- Conservative ✓
- Collision
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- What is the Earth's outer layer called?
- Mantle
- Crust ✓
- Core
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- What is subduction?
- Plates sliding past each other
- Lava cooling and hardening
- Oceanic plate sinking beneath continental plate ✓
- Earth’s crust breaking apart
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- Which scale measures earthquake magnitude?
- Richter scale ✓
- Mercalli scale
- Seismic scale
- Tornado scale
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- What type of boundary created the Mid-Atlantic Ridge?
- Destructive
- Collision
- Conservative
- Constructive ✓
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Exit quiz
- What are primary effects of tectonic hazards?
- The long-term environmental changes after the hazard
- The immediate impacts caused directly by the hazard event ✓
- The economic consequences over time
- The recovery actions taken by governments
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- Which of the following is an example of a secondary effect of a volcanic eruption?
- Ground shaking
- Lava flow damage
- Ash clouds disrupting air travel ✓
- The formation of a crater
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- Why is a tsunami considered a secondary effect of an earthquake?
- It is caused by underwater earthquakes displacing water ✓
- The earthquake directly generates giant ocean waves
- The earthquake increases ocean temperature, creating waves
- It happens at the same time as the earthquake
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- How does preparation help reduce the impact of tectonic hazards?
- It ensures no damage will occur
- It helps people evacuate quickly and provides resources for relief ✓
- It prevents the hazard from occurring
- It speeds up long-term recovery
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Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Earthquakes have primary and secondary effects (impacts).
- There are short-term (immediate) and long-term responses to earthquakes.
- Volcanic eruptions have primary and secondary effects (impacts).
- There are short-term (immediate) and long-term responses to volcanic eruptions.
Common misconception
Primary effects always cause the most damage.
Sometimes it is the secondary effects of a hazard that cause the most destruction, for example mudslides following a volcanic eruption.
Keywords
Primary effect - impacts that occur instantly and as a direct result of the earthquake or volcanic eruption
Secondary effect - impacts that follow as a consequence of the earthquake or volcanic eruption in the hours, days and weeks that follow
Immediate response - action taken during and immediately after a hazard event that focuses on surviving the hazard and providing short-term relief
Long-term response - action that focuses on rebuilding after the tectonic hazard and reducing risks from future hazards
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