Geography · Ch 6 — Natural Hazards and Disasters
Disaster Management
Disaster Management
Concept First
Most natural hazards strike without warning, but cyclones are different — they can be tracked, timed and located in advance. That predictability is the foundation of disaster management: if you know a hazard is coming, you can prepare for it, respond to it and recover from it. The textbook builds this idea into a three-stage framework — pre-disaster, during-disaster and post-disaster — and applies it to India, where a large share of land and people sit in harm's way.
Why Cyclones Are Manageable
Cyclones, unlike earthquakes, tsunamis and volcanic eruptions, are more predictable in terms of both time and place of occurrence. This is the key distinction the book draws. Because scientists have developed techniques to monitor the behaviour of cyclones — their intensity, direction and magnitude — it has become possible to manage the cyclonic hazard to some extent. Prediction gives you a window; management uses that window.
Several structural measures help minimise cyclone damage:
- Construction of cyclone shelters
- Building embankments and dykes
- Creating reservoirs
- Afforestation to reduce wind speed
Yet despite these measures, loss of life and property in successive storms has actually increased in countries like India, Bangladesh and Myanmar. The reason is not the storms themselves but the high vulnerability of the population living in coastal areas. The hazard may be predictable, but the exposure of people is what turns a storm into a disaster.
The Disaster Management Bill, 2005
The Bill defines a disaster as a catastrophe, mishap, calamity or grave occurrence affecting any area, arising from natural or man-made causes, or by accident or negligence. Such an event results in substantial loss of life or human suffering, or damage to and destruction of the environment. Crucially, it is of such nature or magnitude that it lies beyond the coping capacity of the community of the affected area.
That last clause matters — a disaster is not merely a bad event; it is one that overwhelms the local community's ability to handle it on its own.
The Three Phases of Disaster Management
- Pre-disaster management involves generating data and information about disasters, preparing vulnerability zoning maps, and spreading awareness among people. Beyond these, disaster planning, preparedness and preventive measures must be taken in vulnerable areas. This phase is about knowing the risk and getting ready before anything happens.
- During disasters, rescue and relief operations must be carried out on an emergency basis. These include evacuation, construction of shelters and relief camps, and supplying water, food, clothing and medical aids. Speed and organisation are the priorities here.
- Post-disaster operations should involve rehabilitation and recovery of victims. The phase also concentrates on capacity-building so that communities can cope with future disasters. Recovery is not just about restoring what was lost — it is about becoming stronger for the next time. …
Disaster Management involves a comprehensive approach to reduce vulnerability and minimise loss due to disasters. Cyclones, unlike earthquakes, tsunami and volcanic eruptions, are somewhat more predictable in terms of the time and place of their occurrence. Improved monitoring of the behaviour, intensity, direction and magnitude of cyclones has made it somewhat possible to manage cyclone-related hazards. Mitigation steps include construction of cyclone shelters, embankments, dykes and reservoirs, and afforestation programmes to reduce the wind speed. In spite of these measures, successive storms in India, Bangladesh and Myanmar have caused rising los …