Primary and secondary effects and responses to tectonic hazards
I can explain the difference between primary and secondary effects of a tectonic hazard, and between immediate and long-term responses to a tectonic hazard.
- Year 10
- AQA
Primary and secondary effects and responses to tectonic hazards
I can explain the difference between primary and secondary effects of a tectonic hazard, and between immediate and long-term responses to a tectonic hazard.
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.
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
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.
Equipment
Content guidance
- Depiction or discussion of violence or suffering
Supervision
Adult supervision required
Licence
Lesson video
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