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Disaster Management: Framework, Risk & Mitigation ​

📊 High-Yield Data & Statistical Fact Sheet
  • National Disaster Risk Financing (15th Finance Commission):
    • SDRF Funding Ratio: Central share is 75% for general category states and 90% for North-Eastern and Hilly states.
    • GPDRR 2025 Recognition: India was recognized at the Global Platform for Disaster Risk Reduction (GPDRR) for establishing the world's largest methodology-based risk financing system (integrating response and mitigation funds at all levels: NDRF/NDMF and SDRF/SDMF).
  • Coalition for Disaster Resilient Infrastructure (CDRI):
    • HQ Location: New Delhi (India-led global partnership launched in 2019).
    • Membership (2025–2026): 56 members (with African Union joining as the 54th member).
    • ICDRI 2025 (7th Conference): Held in France, focusing on the theme of Coastal Resilience.
  • Early Warning & Hazard Stats:
    • EW4All Target: UN initiative aiming for 100% global population protection by multi-hazard early warning systems by 2027.
    • Seismic Zoning: India is divided into 4 seismic zones (Zone II, III, IV, and V; Zone I is merged with Zone II).
    • GLOF Threat: The Himalayan region contains approximately 28,000 glacial lakes, monitored under the National Glacial Lake Outburst Flood Risk Mitigation Project (NGRMP).

1. INSTITUTIONAL & FINANCIAL ARCHITECTURE ​

India's disaster management framework transitioned from relief-centric response to proactive risk management under the Disaster Management Act, 2005 (amended in 2025):

  • Institutional Hierarchy:
    • NDMA: Apex policymaking body chaired by the Prime Minister.
    • SDMA: State-level policy body chaired by the Chief Minister.
    • DDMA: District-level execution body co-chaired by the District Collector and the elected head of the local self-government (e.g., Zilla Parishad Chairperson).
    • NCMC (Statutory 2025): Chaired by the Cabinet Secretary. Coordinates high-level emergency response.
  • 15th Finance Commission Financing Reforms:
    • Created dedicated Mitigation Funds (NDMF at Centre and SDMF at States) to fund hazard-prevention infrastructure, distinct from the response funds (NDRF/SDRF) used for immediate post-disaster relief.
    • Allocation is based on a Disaster Risk Index that calculates risk exposure, hazard proneness, and historical vulnerability rather than simple expenditure history.

2. EARLY WARNING TELEMETRY & DIGITAL SYSTEMS ​

  • C-FLOOD Inundation Platform:
    • Web-based system developed under the National Supercomputing Mission.
    • Provides 2-day advance flood inundation forecasts down to the village/ward level.
    • Basins Covered: Mahanadi, Godavari, and Tapi basins.
  • SACHET Alert System: SMS-based public warning platform developed by the NDMA, utilizing the international Common Alerting Protocol (CAP) to broadcast geofenced alerts.
  • Cell Broadcast Alert System (CBAS): Telecommunication-based emergency warning system that bypasses mobile network congestion to deliver near-instant audio and text alerts to handsets (critical for rapid events like tsunamis and lightning strikes).

3. SEISMIC, CYCLONE, AND GLACIAL HAZARDS ​

  • Earthquake Seismic Zonation (Bureau of Indian Standards - BIS):
    • Zone V (Very High Damage Risk - MSK IX or more): Covers the entire North-East, parts of Jammu & Kashmir, Ladakh, Himachal Pradesh, Uttarakhand, Rann of Kutch (Gujarat), and northern Bihar.
    • Zone IV (High Damage Risk - MSK VIII): Includes Delhi, parts of Sikkim, remaining parts of Jammu & Kashmir and Himachal Pradesh, and Bihar.
  • Cyclone Vulnerability: India's East Coast (Odisha, Andhra Pradesh, Tamil Nadu, West Bengal) is historically more cyclone-prone than the West Coast due to warmer sea surface temperatures in the Bay of Bengal.
  • Glacial Lake Outburst Floods (GLOFs): Rapid melting of Himalayan glaciers creates unstable moraine-dammed lakes. The NGRMP prioritizes high-risk lakes in Sikkim, Uttarakhand, Himachal Pradesh, and Arunachal Pradesh.
  • Oil Spill Management: The Indian Coast Guard (ICG) acts as the Central Coordinating Agency under the National Oil Spill Disaster Contingency Plan (NOS-DCP). Employs bioremediation techniques like Oilzapper (developed by TERI) and Oilivorous-S bacteria.

4. TOP UPSC PRELIMS TRAPS ​

  1. DDMA Composition: Trap questions claim the DDMA is chaired solely by the District Collector. Fact: It is co-chaired by the District Collector and the elected local government leader.
  2. Delhi Seismic Zone: Often placed in Zone V in trap options. Fact: Delhi lies in Zone IV (High Risk), not Zone V.
  3. NDMA Executive Action: Trap options state that the NDMA operates ground-level search and rescue. Fact: The NDMA is a policy-making and guidelines-drafting body; actual field rescue is executed by the NDRF and state emergency services.
  4. SDRF Funding Ratios: Trap options claim the Centre contributes 50% of the State Disaster Response Fund. Fact: The Centre contributes 75% for general category states and 90% for Himalayan/North-Eastern states.

QUICK REVISION BOX ​

  • NDMA Chairman: The Prime Minister (ex-officio).
  • NCMC Chairman: The Cabinet Secretary (statutory status in 2025).
  • CDRI Headquarters: New Delhi (African Union joined as 54th member).
  • 7th ICDRI 2025 Theme: Coastal Resilience (held in France).
  • INCOIS Hyderabad: India's nodal agency for Tsunami early warnings.
  • Oil Spill Nodal Agency: Indian Coast Guard (ICG).
  • UN EW4All Target Year: 2027 (universal early warning systems).
  • Zone V Key Areas: Kutch (Gujarat), North-East India, and Kashmir.

Notes updated up to March 2026. Sources: NDMA Annual Reports, BIS Seismic Zonation Map, CDRI publications.

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