Building peace in the minds of men and women

World Tsunami Awareness Day

5 November

Though they may be rare, tsunamis are among the most devastating natural disasters. They know no coastal borders. Coastal communities – often concentrated in low-lying and highly populated areas – are the most potentially vulnerable to coastal hazards including tsunamis, with heavy human and economic losses. International cooperation is key for deeper political and public understanding; as well as involvement in reducing our risks from these coastal natural hazards.

In December 2015, the United Nations General Assembly designated 5 November as World Tsunami Awareness Day to promote a global culture of tsunami awareness.

The Intergovernmental Oceanographic Commission (IOC) of UNESCO works to coordinate national and regional tsunami early warning services, raising global awareness about effective actions, policies and practices to reduce exposure to disaster risk through its four Tsunami Warning and Mitigation Systems for the Pacific, Indian Ocean, Caribbean, and North-Eastern Atlantic, Mediterranean and Connected Sea regions. The IOC also assists Member States through education programmes and regular tsunami communication and evacuation exercises, increasing the coordination, readiness for and understanding of tsunamis among citizens and communities around the world.


The 2021 edition of the World Tsunami Awareness Day (WTAD) will be jointly organized by UNDRR and UNESCO’s Intergovernmental Oceanographic Commission, in collaboration with other UN and external partners and under the sponsorship of the Government of Japan.

The 2021 WTAD will be structured around multiple events taking place around the world. Click here to discover a complete list of events. 


As we enter the United Nations Decade of Ocean Science for Sustainable Development, it has never been more important to redouble our efforts and to reaffirm our international solidarity in order to deal with this devastating phenomenon.

—  Audrey Azoulay, Director-General of UNESCO, on the occasion of World Tsunami Awareness Day

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