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Lessons Learned

The July 12, 1993 event was the second destructive tsunami in the Sea 0f Japan/East Sea within a ten-year interval. There were many lessons learned from this event about the potential of tsunami generation along this very active tectonic boundary. The closeness of the tsunami generating sources to populated coastal areas emphasized the need for better preparedness and for automated instrumentation and systems that can provide immediate warnings following major earthquakes. The 1993 Okushiri event was extensively documented and studied by scientists and Civil Defense authorities and much was learned about how to mitigate the effects of future tsunamis. Fortunately in Japan there is a great deal of public awareness of earthquake and tsunami risks.