Topic Summaries

Reducing risks of tectonic hazards

IGCSE > Geography > Pearson IGCSE > IGCSE Geography Topic Summaries > Risks of tectonic hazards > Reducing risks of tectonic hazards
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Weather hazards and atmospheric circulation

Hot desert ecosystems

Cold environment ecosystems

Glacial landscapes

Glacial landform processes

Energy supply

  • Monitoring: scientists use technology to track signs of tectonic activity, allowing people to prepare. Examples include: 
    • Seismometers: measure earth movements to detect earthquakes.
    • Gas monitoring: volcanoes release gases like sulphur dioxide before erupting.
    • Earthquake patterns: small earthquakes can signal a volcanic eruption.
  • Prediction: by observing and analysing data from monitoring, scientists can predict when and where a tectonic event might happen. For example, if a volcano shows signs of activity, people can evacuate before it erupts.
    • Volcanic prediction: changes in gas emissions, ground deformation, and temperature increases can indicate an imminent eruption
    • Earthquake forecasting: while exact prediction is not currently possible, areas with frequent minor tremors or strain build-up along fault lines can be identified as high-risk zones.
    • Historical data analysis: patterns from past tectonic events help identify vulnerable regions and anticipate future hazards.
    • Warning systems: data from prediction models can trigger alerts, enabling early warning systems to inform the public and emergency services.
  • Protection: steps are taken to reduce damage to buildings and infrastructure. This may include:
    • Reinforced buildings: designed to absorb earthquake movement and prevent collapse.
    • Automatic shutdowns: gas and electricity systems turn off during earthquakes to prevent fires.
    • Lava diversion: trenches and barriers are built to stop lava from reaching towns.
  • Planning: governments and communities prepare for tectonic hazards in advance. Planning ensures people are aware on what to do and where to go, reducing panic and saving lives. For example:
    • Avoid building in risky areas: do not build homes near fault lines or active volcanoes.
    • Training and drills: emergency services and the public practise drills in the event of a tectonic hazard.
    • Evacuation routes: clear routes are planned to help people escape quickly.
    • Emergency supplies: stockpiles of food, water, and medical supplies are prepared.

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