Climate Change

4 vital ways tsunami-vulnerable countries can prepare for disaster

The volcanic eruption and tsunami in Tonga was one of the worst in recent decades. Image: Pixabay/scym

Ravindra Jayaratne

Reader in Coastal Engineering, University of East London


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A map of the world showing global tsunami hazard.
Sketch of global tsunami hazard, as of May 2009. Image: UN Office for Disaster Risk Reduction

A red and white buoy in the ocean.
Buoys help to detect tsunamis by measuring height and direction of waves at sea. Image: UNSPLASH/ Dan Meyers

A coastal dike, protecting land from tsuanmis.
'A new coastal dike in the city of Sendai, Japan, built after the 2011 tsunami'. Image: Ravindra Jayaratne

People wearing Tonga Geological Services jackets watching an eruption.
'The eruption launched material 40km into the atmosphere and triggered tsunamis across the Pacific'. Image: ZUMA Press, Inc. / Alamy

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Climate ChangeThe OceanRisk and Resilience


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