Tsunamis are the result of processes that shape the Earth's surface: earthquakes, volcanic events, and landslides. People cannot control the dynamic forces that drive tectonic events. Nor can they prevent most of the physical devastation they impart. However, people can reduce the number of lives lost to tsunamis by using technology to assess hazards, develop warning systems, and educate the public. This media-rich essay from NOVA discusses what it will take to implement an effective tsunami warning system so that the major toll inflicted on December 26, 2004 will not be experienced again.
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