Strengthening Tsunami Early Warning System Sustainability through International Development Cooperation: IDRIP’s Mechanism in Supporting InaTEWS

This study analysis the mechanism of international development cooperation between the World Bank and the Government of Indonesia through the Indonesia Disaster Resilience Initiatives Project (IDRIP) and its impact on strengthening the sustainability of the Indonesia Tsunami Early Warning System (InaTEWS).IDRIP, as a multilateral program, aims to enhance disaster mitigation dan resilience by improving institutional capacity and integrating the Multi-Hazard Early Warning System (MHEWS) and Disaster Management Information System (DMIS).Using a qualitative descriptive method and analysis of official documents from the World Bank (2020-2024), BNPB, and BMKG, this study identifies how IDRIP supports InaTEWS through technological modernization, integration of tsunami detection networks, and institutional coordination.The findings indicate that World Bank assistance through IDRIP enhances the sustainability of InaTEWS by strengthening data interoperability, communication reliability, and disaster governance, representing a model of multilateral environmental cooperation that contributes to maritime disaster risk reduction and human security.