India is one of the world’s most disaster-prone countries, ranking 8th globally for hazard exposure. About 60% of India’s land is vulnerable to earthquakes, 12% to floods, 8% to cyclones, and 70% of cropland to drought.
Earthquakes
Seismic Zoning
| Zone |
Intensity |
% Area |
Key Regions |
| Zone V (Very High) |
MSK ≥IX |
11% |
Kashmir, Himachal, Uttarakhand, NE states, Kutch (Gujarat) |
| Zone IV (High) |
MSK VIII |
18% |
Delhi-NCR, Bihar, Sikkim, Ladakh, remaining Kutch, west Rajasthan |
| Zone III (Moderate) |
MSK VII |
30% |
Central India: MP, Chhattisgarh, Maharashtra, Odisha, Karnataka, Tamil Nadu |
| Zone II (Low) |
MSK VI |
41% |
Peninsular India: most of Telangana, interior Karnataka, Andhra |
Major Earthquakes
| Year |
Location |
Magnitude |
Deaths |
| 1934 |
Bihar-Nepal |
8.0 |
10,000+ (India + Nepal) |
| 1993 |
Latur (Maharashtra) |
6.4 |
10,000 |
| 2001 |
Bhuj (Gujarat) |
7.7 |
20,000+ |
| 2005 |
Muzaffarabad (Kashmir) |
7.6 |
80,000+ |
| 2015 |
Gorkha (Nepal) |
7.8 |
9,000 (severe impact in Bihar/UP) |
Vulnerability
- Himalayan region: Under-thrusting of Indian plate beneath Eurasian plate at 45mm/year
- Delhi-NCR: Zone IV — high risk from Himalayan quakes
- Major dams in Himalayan seismic zones: Tehri, Bhakra, Salal — cascading risk if dam fails in earthquake
Floods
Flood-Prone Areas
| Basin/River |
States Affected |
Frequency |
| Ganga River |
UP, Bihar, Bengal |
Annual; monsoon season |
| Brahmaputra |
Assam, Arunachal |
Severe; bank erosion + floods |
| Kosi River |
Bihar (“Sorrow of Bihar”) |
Catastrophic when embankments breach |
| Mahanadi |
Odisha |
Moderate; Hirakud reservoir helps |
| Godavari-Krishna |
Andhra, Telangana |
Moderate |
| Narmada-Tapti |
Gujarat, MP |
Occasional; Sardar Sarovar helps |
Notable Floods
| Year |
Region |
Impact |
| 2008 |
Kosi breach (Bihar) |
4,000 km² inundated; 3 million displaced |
| 2013 |
Uttarakhand (Kedarnath) |
5,000+ deaths; cloudburst + glacial lake outburst |
| 2015 |
Chennai |
300+ deaths; 5 lakh displaced; economic loss ₹15,000 crore |
| 2018 |
Kerala |
400+ deaths; worst flood in a century |
| 2023 |
Himachal, Uttarakhand, Punjab |
Monsoon floods; 1,500+ landslides |
Cyclones
India has an 8,000 km coastline — 2,700 km on the west coast, 5,000+ km on the east. Cyclones form in the Bay of Bengal (3x more than the Arabian Sea).
Cyclone-Prone Zones
| Coast |
Frequency |
Major Cyclones |
| East Coast (Odisha, AP, TN, WB) |
High; 80% of cyclones |
Phailin (2013), Hudhud (2014), Fani (2019), Amphan (2020), Yaas (2021) |
| West Coast (Gujarat, Maharashtra) |
Moderate |
Tauktae (2021) — severe; Om (2010) |
| Kerala-Karnataka coast |
Low |
Cyclone Ockhi (2017) — unexpected, many lost at sea |
Cyclone Management
- IMD’s Cyclone Warning System: Worldclass — landfall forecast 3 days in advance
- NDRF: 12 battalions; specialized search and rescue
- Storm surge preparedness: Cyclone shelters (Odisha’s success: <50 deaths in Phailin vs. 10,000+ in 1999 Odisha super cyclone)
- Mangrove restoration: Sundarbans (WB), Odisha coast — natural cyclone barrier
Droughts
Drought-Prone Areas
| Zone |
Meteorological Drought Frequency |
Major States |
| Arid Zone |
Frequent/perennial |
Rajasthan (western), Gujarat (Kutch) |
| Semi-Arid |
Once in 3-4 years |
Maharashtra (Marathwada, Vidarbha), Karnataka (North Interior), Telangana |
| Dry Sub-humid |
Once in 5-7 years |
MP, Odisha (Kalahandi-Balangir-Koraput), Bihar (South) |
Major Droughts
| Year |
Region |
Impact |
| 1876-78 |
Deccan |
~5-10 million deaths (famine) |
| 1965-66 |
Bihar |
Severe food shortage; triggered Green Revolution |
| 1972 |
Maharashtra |
2 million cattle deaths |
| 2015-16 |
Marathwada, Vidarbha |
1,500+ farmer suicides; water train to Latur |
| 2023 |
Bundelkhand |
Monsoon deficit of 40%+ |
Landslides
High-Vulnerability Regions
- Himalayas: J&K, HP, Uttarakhand, Darjeeling (WB), NE states (Nagaland, Mizoram, Arunachal heavy)
- Western Ghats: Nilgiris (TN), Idukki-Wayanad (Kerala), Konkan
- Human factors: Road cutting, deforestation, construction in steep slopes, mining
Notable Landslide Events
| Year |
Location |
Trigger |
| 2013 |
Kedarnath (UK) |
Cloudburst + glacial lake outburst + landslides |
| 2018 |
Idukki (Kerala) |
Heavy rain (monsoon floods) |
| 2019 |
Malin (Maharashtra) |
Heavy rain — 160 dead |
| 2021 |
Raigad (Maharashtra) |
Heavy rain — 50+ dead |
Disaster Management Framework
| Institution |
Role |
| NDMA (National Disaster Management Authority) |
Policy, guidelines, coordination (2005 DM Act) |
| NDRF (National Disaster Response Force) |
Specialized response (16 battalions) |
| SDMAs/SDRFs (State bodies) |
State-level framework |
| IMD + Central Water Commission + INCOIS |
Early warning (weather, floods, tsunami — Indian Tsunami Early Warning System at INCOIS Hyderabad) |
| NIDM |
Capacity building, training |
Post-Disaster Response
- State Disaster Response Fund (SDRF): ₹10,000+ crore allocated annually
- National Disaster Response Fund (NDRF): Additional funding for severe disasters
- Insurance: Pradhan Mantri Fasal Bima Yojana (crop insurance) ~30% farmers covered
- Reconstruction: National Cyclone Risk Mitigation Project (NCRMP); National Landslide Risk Mitigation Project
