In January 2022, a submarine volcanic eruption triggered a tsunami in the Pacific island state of Tonga. The volcano created a powerful shock wave and displaced huge amounts of water, triggering a far-flung tsunami that raced across the vast Pacific Ocean and reached as far as the coasts of Japan and the Americas.
Despite successful disaster preparedness and response measuers in place, the event demonstrated the compound and cascading risks features of these hazards, calling for strengthening of the regional disaster risk management. Solutions may include a better understanding and communication of hazards and risk, early warning for volcanoes, and critical infrastructure redundancy.
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