Disaster Cycle and Management

Disaster Basics - Defining Calamity

• Disaster: Sudden, calamitous event causing great damage, loss, or destruction; overwhelms local capacity to cope. (Based on WHO).
• Key Elements:
  • Hazard (H): Threatening event/phenomenon (natural/man-made).
    • Natural: Earthquakes, floods, cyclones.
    • Man-made: Industrial accidents, conflicts.
  • Vulnerability (V): Community's susceptibility to a hazard's impact.
  • Capacity (C): Resources & abilities to manage hazards, reduce impact.
• Risk (R): Probability of harm/loss. Calculated as: $Risk = (Hazard \times Vulnerability) / Capacity$.

  ⭐ Understanding this risk equation is crucial: Higher Hazard (H) & Vulnerability (V) ↑ Risk, while higher Capacity (C) ↓ Risk.

Disaster Cycle - Round We Go

The disaster cycle is a continuous, four-phase process crucial for effective disaster management. 📌 Mnemonic: MPRRe (Mitigation, Preparedness, Response, Recovery).

• Mitigation (Lessen Impact):
  • Measures to prevent hazards or reduce their direct effects.
  • Structural: retrofitting, flood levees. Non-structural: land-use plans, building codes, awareness.
  • Long-term, sustained effort.
• Preparedness (Get Ready):
  • Advance measures for effective disaster response.
  • Emergency plans, training/drills, early warning systems, stockpiling supplies.
• Response (Act Now):
  • Immediate actions to save lives, reduce health impacts, meet basic needs.
  • Search & rescue, triage, medical aid, evacuation, shelter, food/water.
• Recovery (Bounce Back):
  • Restoring community functions and livelihoods.
  • Short-term: restore essential services (power, water).
  • Long-term: rebuild infrastructure, economic/social recovery, psychosocial support.

⭐ Mitigation activities are considered the most cost-effective measures for reducing disaster losses in the long term.

India's DM Framework - Command Central

• National Apex Body: National Disaster Management Authority (NDMA).
  • Chaired by Prime Minister; apex body for policy, planning, and coordination.
• Training & Research: National Institute of Disaster Management (NIDM).
  • Training, research, documentation, and capacity development.
• Specialized Response Force: National Disaster Response Force (NDRF).
  • Specialized force for disaster response and relief operations.
• State Level Authority: State Disaster Management Authority (SDMA).
  • Chaired by Chief Minister; state-level coordination and implementation of DM plans.
• District Level Authority: District Disaster Management Authority (DDMA).
  • Chaired by District Collector; district-level planning, coordination, and implementation.
• On-Scene Management: Incident Command System (ICS).
  • Standardized on-scene all-hazard incident management.
  • Key functions: Command, Operations, Planning, Logistics, Finance/Admin (📌 C-OPLF).

⭐ NDMA, India's apex DM body, is chaired by the Prime Minister.

Response & Relief - Action Stations!

• Core Actions: Rapid, coordinated efforts to save lives & reduce suffering.
  • Triage: Sort victims by injury severity.
    • 📌 START (Simple Triage And Rapid Treatment): Based on Respiration, Perfusion, Mental status (RPM).
    • SALT (Sort, Assess, Lifesaving Interventions, Treatment/Transport).
  • Search & Rescue (SAR): Locate, extricate, & provide initial aid.
  • Medical Aid: Field hospitals, first aid posts, ambulance services.
  • Communication: Establish reliable systems; public information dissemination.
  • Coordination: Incident Command System (ICS) for unified command.
  • Logistics: Mobilize resources (water, food, shelter, medical supplies).
  • Psychosocial Support: Address immediate mental health needs of victims & responders.

⭐ Triage Color Code Priority:

• Red (Priority I): Immediate (Life-threatening injuries, high survival chance with immediate care)
• Yellow (Priority II): Delayed (Serious injuries, but not immediately life-threatening)
• Green (Priority III): Minor (Walking wounded, minor injuries)
• Black (Priority 0/IV): Expectant/Deceased (Unlikely to survive or already dead)

High‑Yield Points - ⚡ Biggest Takeaways

• Disaster Cycle phases: Mitigation, Preparedness, Response, Recovery.
• Mitigation: Reduces hazard impact through long-term measures like zoning laws.
• Preparedness: Planning, training, drills, and resource stockpiling for effective action.
• Response: Immediate actions include Search & Rescue (SAR), Triage, and emergency medical care.
• Triage (e.g., START): Prioritizes victims - Red (Immediate), Yellow (Delayed), Green (Minor), Black (Deceased).
• Recovery: Focuses on restoring normalcy through rehabilitation, reconstruction, and psychosocial support.
• Incident Command System (ICS): Essential for coordination and management during disaster response.