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Tsunamis can be deadly, but they needn’t be. Early warning and early action are effective tools to protect people, saving lives, and preventing the hazard from becoming a disaster. To be effective, tsunami early-warning systems must cover every at-risk person, they must be multi-hazard, and communities must be prepared so they can act quickly.

Tsunami detection buoy floats in the Andaman sea, India (2018)
Five countries pave the way for progress in the implementation of effective tsunami early warning systems, which are challenging due to multi-faceted complexity.
United Nations Office for Disaster Risk Reduction
Tsunami early warning system in the sea
The best emergency plans need to be comprehensive yet simple. Including early warnings, safe areas, and escapes routes in your tsunami escape plan is essential.
United Nations Office for Disaster Risk Reduction
Warning sign reading "Tsunami hazard zone"
From blowing conch shells to ringing church bells and sending mobile phone alerts, Caribbean countries are looking at high and low-tech ways to alert citizens to run for safety in the face of tsunamis which could wreak havoc on unprepared communities.
United Nations Office for Disaster Risk Reduction – Regional Office for the Americas and the Caribbean
WTAD logo
Commemorating this year’s Tsunami Day, ASB joined the students of MTSLB/A Yaketunis Yogyakarta, a special school for students with visual limitations.
Arbeiter-Samariter-Bund Indonesia and the Philippines
Fumihiko Imamura, Professor of Tsunami Engineering at Tohoko University
Renowned tsunami expert Prof. Fumihiko Imamura uses the occasion of World Tsunami Awareness Day to draw attention to the threat of "black tsunamis" caused by pollution of the seas.
United Nations Office for Disaster Risk Reduction - Regional Office for Asia and Pacific
It’s 6:00 am one September day when a powerful undersea earthquake rocks the Makran Trench along the coast of Pakistan and Iran. Minutes later, the tsunami warning centres in India and Indonesia issue simultaneous alerts, followed rapidly by their counterpart in Australia, and authorities across the Indian Ocean swing into action. It's all a test, and a critical component of the region's disaster preparedness.
United Nations Office for Disaster Risk Reduction
United Nations Office for Disaster Risk Reduction - Regional Office for Asia and Pacific

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