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Good summation of the technical and organizational components of tsunami warning systems.
About 90% of the world's earthquakes and 80% of the world's largest earthquakes occur along the Ring of Fire. The countries along it include Northwest of US, Mexico, Chile, Canada, Russia, Japan, Philippine, Indonesia, New Zealand, Antarctica.
The next most seismic region (5–6% of earthquakes and 17% of the world's largest earthquakes) is the Alpide belt. The northwest of Indonesia lies in The Pacific Ring of Fire, and the southeast of the country lies in the Alpide belt. This country is doomed, I would never live there.
I wonder if it would be useful to have every commercial boat to carry a GPS device for tsunami detection. I'm guessing that the large number of boats could give satellites a good map of the ocean height. It might be more feasible than distributing and maintaining a system of buoys.
This post I just made gave me the idea: http://hubski.com/pub?id=623
Seems like a good place for this link: http://www.abc.net.au/news/events/japan-quake-2011/beforeaft...
Pictures of the Japanese coastline before and after the tsunami.