2.6 - Tectonic Hazards in LEDCs & MEDCs
Factors influencing the severity of tectonic hazards
Tectonic hazards, such as earthquakes and volcanic eruptions, can have varying levels of impact depending on specific conditions in the affected area.
Key elements affecting disaster impact
- Location in rural or urban areas - Rural regions typically have fewer inhabitants and structures, resulting in a smaller scale of destruction compared to densely populated urban centres.
- Population density - Areas with a higher concentration of people face greater risks of loss of life and injury. For instance, a major earthquake in a crowded city could lead to tens of thousands of deaths, far exceeding the impact in a sparsely populated region.
- Level of preparedness - The readiness of a region to handle such events plays a critical role. More economically developed countries (MEDCs) generally have better resources and planning to mitigate damage, whereas less economically developed countries (LEDCs) often lack the funds, expertise, and infrastructure to prepare effectively, leading to more severe consequences.
Emergency response strategies in more economically developed countries (MEDCs)
MEDCs typically have well-structured systems in place to manage the aftermath of tectonic hazards.
Steps in emergency planning and response
- Assessment by experts - Local authorities evaluate the extent of the damage and the severity of the situation to determine the necessary response.
- Public communication - Keeping citizens informed with clear instructions and reassurance to maintain calm and guide them on next steps.
- Addressing immediate threats - Prioritising urgent issues such as treating casualties by transporting them to medical facilities and extinguishing fires, especially when gas lines are compromised.
- Restoring essential services - Quickly repairing disrupted utilities like electricity, water, and sewage systems to prevent health risks such as disease outbreaks.
- Repairing communication and transport networks - Fixing damaged roads, bridges, railways, and telecommunication systems to ensure access for external aid and emergency services.
- Coordination of efforts - Aligning the actions of individuals, government bodies, and non-governmental organisations (NGOs) to maximise efficiency.
- Return to normalcy - Once the risk of further hazards is eliminated and the situation stabilises, efforts focus on resuming everyday life.
Challenges of preparedness in less economically developed countries (LEDCs)
LEDCs face significant obstacles in preparing for tectonic hazards due to limited resources and infrastructure.
Barriers to effective hazard preparation
- Lack of public awareness - Many residents in hazard-prone areas of LEDCs are not provided with adequate information on how to respond during a disaster.
- Insufficient planning - Governments in LEDCs frequently lack the financial means or resources to develop comprehensive emergency plans.
- Poor housing and infrastructure:
- A large number of people live in informal settlements or shanty towns with substandard housing that collapses easily during events like earthquakes.
- Additionally, inadequate access roads hinder evacuation and rescue efforts.
Recovery difficulties in LEDCs compared to MEDCs
The process of recovering from tectonic hazards is often much slower and more challenging in LEDCs compared to MEDCs.
Obstacles to recovery in LEDCs
- Shortage of expertise - There are often too few trained professionals available to assess the situation.
- Delays in addressing emergencies - Without pre-established plans, responses to fires, injuries, and other immediate needs are slow.
- Extensive damage from poor construction - Weakly built homes and structures suffer greater destruction, facilitating the rapid spread of fires and diseases in affected areas.
- Limited communication systems - Poor communication infrastructure means information dissemination is slow, and emergency services like ambulances and fire engines are scarce.
- Inadequate utilities and transport:
- Pre-existing issues with water, power, and transport systems make repairs difficult.
- Poor road networks hinder the delivery of essential supplies such as food, medicine, and shelter materials.
- Dependence on external aid - Financial constraints force LEDCs to rely on foreign assistance, which can take time to arrive.
- Strained medical facilities - Limited healthcare infrastructure results in higher mortality rates from injuries and diseases caused by contaminated water and poor living conditions post-disaster.
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