To commemorate the 20 th Anniversary of the 2004 Indian Ocean Tsunami 21 st December 2024 Lavender Hall BMICH, Colombo, Sri Lanka Tsunami Science in Sri Lanka Organised by: Partners: University of Colombo, Sri Lanka Intergovernmental Oceanographic Commission Sri Lanka experienced its most devastating natural hazard through the action of a Tsunami resulting from an earthquake off the coast of Sumatra on 26 th December 2004. Since that fateful day 20 years ago, there has been a considerable amount of research that has been undertaken by Sri Lankan scientists. This workshop aims to bring together multi-disciplinary Sri Lankan tsunami researchers to share their knowledge by means of a series of plenary presentations and papers: These peer-reviewed plenary papers will be published in a book volume and will be able to access via www.sltsunamiscience.org from 21 st December 2024. 1. Physics of Tsunamis Impacting Sri Lanka 2. The Upstream-Interface- Downstream of the Tsunami Early Warning System: Sri Lanka Perspective 3. Seismic Activity Onshore and Offshore Sri Lanka and Potential Tsunamigenic Events 4. Influence of Mangrove Forests in Mitigating the Tsunami Risk in Coastal Areas of Sri Lanka 5. Systems Perspectives on Tsunami Risk for Coastal Hospitals 6. Tsunami Risk for School Buildings on the Sri Lankan Coast 7. Numerical Simulation of Tsunamis Observed in Sri Lanka Generated by Remote Volcanic Eruptions 8. Climate-Induced Coastal Hazards and Tourism Built Environment: An Assessment on Adaptive Capacity of Hotels along Southern Coastal Belt of Sri Lanka 9. Reframing 'Build Back Better' Framework for Post-Tsunami Resettlement: A Field Study in Galle, Sri Lanka 10. The Long-term Impact of Forced Relocation 20 Years After the 2004 Indian Ocean Tsunami: A Case Study of Selected Relocation Settlements in Galle and Batticaloa, Sri Lanka 11. Revisit the Tsunami Resettlements: Women in Designed Living Environment 12. Tsunami Disaster Management by Amature Radio 2004/05 - A Case Study Event co-chairs: Professor Charitha Pattiaratchi The University of Western Australia, Australia Professor Dilanthi Amaratunga IOC - UNESCO IOTWMS / ESTAG - UNDRR Professor Ranjith Senaratne University of Ruhuna, Sri Lanka Disaster Management Centre, Sri Lanka