Wave-powered tsunami warning
60,000 people and $4bn in assets are exposed to the global tsunami hazard.[1,2] These numbers are expected to increase due to population growth, migration to coastal areas, global warming, and the concentration of assets in ports.[2,3,4] Tsunami detection systems send data to control centres that then generate tsunami hazard maps and issue warnings to threatened communities.
Weather can turn quickly, but current tsunami detection systems send out only one acoustic data package per hour due to their power supply limitations.[6,7] Batteries last about 30 months and are prone to failure, requiring frequent service calls that can cost up to $25,000 per visit.[8,9]
Combining detectors with wave energy systems will allow them to send more frequent data packages, and will also increase savings by lessening the frequency of battery replacement visits.
When will early-warning tsunami detection systems be powered by ocean wave energy?
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 Science Daily (2016), A warning system for tsunamis
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