South Asian Tsunami Hazards: Early Warning Systems And Lessons Learned from Past.

Asian countries are more vulnerable to Marine Hazards and Geo disasters due to impacts of climate changes in recent years. Massive tsunami waves triggered by an earthquake On 26 December 2004 which surged into coastal regions in Asia and Africa with devastating force. The deadly tsunami waves swept more than 200 000 people to their deaths , mostly in Indonesia, Sri Lanka, Thailand and India . Several ocean and climate extreme events since 2005 - 2006, more than 1000 million population in these regions are witnessing the social- economical and ecological risks and impacts due to climate changes and marine Geohazards. The presentation focuses on case studies to assess the potential risk of marine hazards, technical problems and damage arising from Tsunami waives and marine hazards in the Asian countries in coastal ecosystems and coastal environmental systems. This case study reviews the application of computer technology and communication technologies for assessment of Geo-risks, marine risks along coastal region of Asian cities and towns and also human influence on the marine system. The presentation also deals with recommendations based on lesson learned from the experts from WMO, IAHS, UNESCO -IOC, IUGS and other Governmental organizations and international organizations, research institutions. The presentation signifies need for extensive capacity building of the stakeholders, local population, students and youth ; scientists and researchers for integration of marine geohazards assessments through communication technologies.