Coordinated by IOC-UNESCO, the Global Tsunami Warning System plays a critical role in protecting lives. The IOC-UNESCO Tsunami Programme supports Member States in assessing tsunami risk, implementing Tsunami Early Warning Systems (EWS) and in educating communities at risk about preparedness measures. With the support of Tsunami Service Providers and Tsunami Information Centers, IOC-UNESCO helps Member States in assessing tsunami risk, implementing Tsunami EWS and in educating communities at risk about preparedness measures.