Tokai Earthquake Preparedness Program “Tokai-Zero” in Shizuoka Prefecture, Japan (Part 2 Recent Challenges in Promoting Seismic Retrofit Program)

Abstract eng:
Since 1976, Shizuoka Prefecture has carried out earthquake preparedness measures against the Tokai Earthquake in scenario. A Project “TOKAI-ZERO” launched in 2001 as a result of the 1995 Kobe Earthquake, in which more than 80% of fatalities were due to building collapse. The project aims to promote seismic retrofit of old timber houses built before 1981, which had most serious damage in the 1995 earthquake. This project focuses on (1) seismic evaluation of houses under full financial support by Shizuoka prefecture, (2) technical support for redesign of vulnerable houses, and (3) subsidies for their seismic retrofit. Approximately 18,600 seismic retrofit works were subsidized in the 13 years since FY2002. The project aims to increase the rate of the seismically-sound houses to 90% by FY2015. The rate was increased 82.4% in FY2013 from 72.9% in FY2003. Approximately 230,000 old timber houses still require seismic retrofit, and earliest possible action is desired to improve the situation.

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