Understanding Tectonic and Other Disaster Trends Since 1960
- Created by: belle-madeleine
- Created on: 11-09-17 16:55
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- Understanding Tectonic and Other Disaster Trends Since 1960
- A Look at the Overall Patterns
- The total of recorded hazards has increased
- Reported disasters are falling
- Number of deaths is lower
- Number of people affected is increasing for some disaster types
- Economic costs are increasing
- How Good are Disaster Statistics?
- Death toll can vary based on where direct deaths or indirect deaths are counted
- Remote places are under-recorded
- Declaration of deaths and causalities are subject to political bias
- Statistics on major disasters are difficult to collect
- Time-trend analysis
- Depends on the means of data collection have remained the same
- Tectonic Mega-Disasters
- Key Characteristics
- Large-scale disasters
- Due to their scale they are difficult to effectively manage
- Require international support
- High-impact but low-probability
- High-value manufacturing is most a risk
- Can lead to reduction in GDP
- Key Characteristics
- Multiple-Hazard Zones
- A number of physical hazards combine increasing the level of risk in a country
- Repeated events mean that their is no time for recovery
- Disaster hotspots
- The magnitude combined with the human geography are important factors
- Large urban areas are often multiple-hazard zones
- Why Some Mega-Cities Have Low Hazard Resilience
- Inappropriate Construction
- Leads to deaths from their collapse
- Dependency on infrastructure and services is an issue
- Poor people settle in hazardous areas
- Ecological Imbalance
- Rapid urbanisation destroys ecosystems
- Deforestation increases flash floods
- High Population
- More people affected therefore, higher death toll
- Inappropriate Construction
- A Look at the Overall Patterns
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