India’s Next-Generation Tsunami Warning System

Budget: ₹300 crore for the Regional Service Centre (RSC).
Location: Vijaynagar on Swaraj Dweep, Andaman & Nicobar Islands.
Nodal Agency: Indian National Centre for Ocean Information and Services (INCOIS) – operator of the Indian Tsunami Early Warning Centre (ITEWC).
Infrastructure: ~270 km of subsea acoustic cables along tectonic sub‑duction zones.
Capability Upgrade: Detection of both seismic (earthquake‑triggered) and non‑seismic (sub‑marine landslides, volcanic activity) tsunamis.
Regional Role: Provides early‑warning services to Indian Ocean nations, notably Sri Lanka.
Current Limitation: Existing system primarily monitors earthquake‑triggered events; about 20% of global tsunamis are non‑seismic.

The Indian Ocean has witnessed several devastating tsunamis, the most recent being the 2004 event that claimed over 230,000 lives across 14 countries.
India’s Indian Tsunami Early Warning Centre (ITEWC), operational since 2004, relies heavily on surface buoys and satellite data, which are vulnerable to damage and have latency issues.
Scientific studies indicate that sub‑marine landslides and volcanic eruptions can generate tsunamis with little or no seismic precursor, creating blind spots in the current warning architecture.

Disaster Management: Enhances the National Disaster Management Authority (NDMA) framework by providing faster, more reliable alerts, reducing loss of life and property.
Strategic Advantage: Strengthens India’s role as a regional hub for disaster risk reduction, aligning with the Indian Ocean Rim Association (IORA) and UNISDR initiatives.
Economic Impact: Protects coastal infrastructure, tourism, and fisheries, sectors contributing significantly to the national GDP.
International Cooperation: Extends early‑warning services to neighboring countries, fostering goodwill and collaborative research in oceanography.

Disaster Management Act, 2005: Mandates the establishment of early warning systems and coordination among central and state agencies.
Coastal Regulation Zone (CRZ) Notification, 2019: Emphasises the need for scientific inputs in coastal zone management, including tsunami risk assessment.
International Law: India’s participation in the UN Convention on the Law of the Sea (UNCLOS) obliges it to share maritime safety information with other coastal states.

Sub‑sea Acoustic Cables: Provide real‑time transmission of pressure‑sensor data, bypassing surface‑buoy failures.
Hybrid Sensor Network: Integration of DART buoys, satellite altimetry, and underwater pressure sensors for comprehensive coverage.
Data Analytics: Use of AI‑driven algorithms to differentiate between seismic and non‑seismic waveforms, improving prediction accuracy.

Expansion of the network to other Indian Ocean islands (e.g., Lakshadweep) and potential data‑sharing agreements with Maldives, Seychelles, and Indonesia.
Continuous R&D on early‑detection of submarine landslides using seafloor geodetic techniques.
Capacity building for state disaster response teams through regular drills and simulation exercises.

Prepared for UPSC aspirants – focus on factual details, policy implications, and interdisciplinary linkages.