1. Tsunami Warning and Mitigation System Masahiro Yamamoto Tsunami Unit Intergovernmental Oceanographic Commission (IOC) UNESCO

2. Tsunami Early Warning System --effective utilization of existing systems--- O upstream detection, verification, tsunami forecast, dissemination of tsunami warning, intergovernmental O downstream delivery of warnings, initiate national counter-measures, prepare and implement standardized reaction IOC co-ordinates Tsunami Warning Systems as an end-to-end system

4. Earthquake Tsunami Tsunami Warning Center International - Regional Framework National Warning System Public Awareness National Government Local Government People Mass Media Where is Evacuation Route? What is Tsunami? TSUNAMI Early Warning Overview Cabinet Office Japan Hazard Risk Assessment Warning Guidance Mitigation - Preparedness

5. Indian Ocean Where are we now? All countries of the Indian Ocean participate All countries of the Indian Ocean participate Interim Tsunami Advisory Information from centers in Hawaii and Tokyo Interim Tsunami Advisory Information from centers in Hawaii and Tokyo National 24/7 Tsunami Focal Point National 24/7 Tsunami Focal Point Governance – UN/IOC through Intergovernmental Group (ICG/IOTWS) Governance – UN/IOC through Intergovernmental Group (ICG/IOTWS)

6. What is the System? The system must be: Based on open and free data and information exchange Based on open and free data and information exchange Based on international and multilateral cooperation Based on international and multilateral cooperation Effective utilization of existing infrastructure; seismic, sea level, communication Effective utilization of existing infrastructure; seismic, sea level, communication

7. Tsunami Forecast Operation for Tsunamis from nearby Origin JMA Seismic Network ･ Quantitative Tsunami forecast (arrival time and Tsunami height) ･ Tsunami warning for 66 regions Tsunami Database Tsunami Warning Tidal Network Evaluation of Tsunami

8. Occurrence of Earthquake GenerationofTsunami Detection of Seismic Wave Determination of Magnitude and Hypocenter Evaluation of Tsunami Issuance of Tsunami Warning Issuance of Tsunami Information Detection of Tsunami Network of seismographs Real time data processing system Criteria for Tsunami grade Criteria for Tsunami grade Communication facility to disseminate Tsunami Warning Components of tsunami warning system Network of tide gauge to monitor tsunami What we need for Tsunami Warning Real time data transmission Re-evaluation of Tsunami

11. 3 DART-like systems deployed

12. June 2005: IOC General Assembly decided resolutions on the establishment of a global and three regional Intergovernmental Coordination Groups on TEWS for June 2005: IOC General Assembly decided resolutions on the establishment of a global and three regional Intergovernmental Coordination Groups on TEWS for - the Indian Ocean (ICG/IOTWS) - the Caribbean (ICG/CARTWS) - the NE Atlantic and Med (ICG/NEAMTWS)

13. Three more regions to coordinate

14. GLOBAL Tsunami Warning and Mitigation System 4 Seas 3 Oceans

15. WG1/ICG/PTWS Infrastructure of Seismic Network Infrastructure of Seismic Network cooperation CTBTO, FDSN (real time) Filling in the network gaps Filling in the network gaps local tsunami/national system New technologies for tsunami warning New technologies for tsunami warning GPS, deep sea observation Sharing operational techniques Sharing operational techniques develop real-time operational system

16. Next-Generation --Tsunami Warning System-- Real time GPS processing system Real time GPS processing system Enhancement of real time analyzing system Enhancement of real time analyzing system Real time tsunami numerical modeling Real time tsunami numerical modeling Strengthen cooperation between science communities and tsunami warning centers