THE GLOBAL SEISMIC HAZARD ASSESSMENT PROGRAM ۱۹۹۲-۱۹۹۸

The Global Seismic Hazard Assessment Program (GSHAP) was launched in ۱۹۹۲ by the International Lithosphere Program (ILP) with the support of the International Council of Scientific Unions (ICSU), and endorsed as a demonstration program in the framework of the United Nations International Decade for Natural Disaster Reduction (UN/IDNDR). In order to mitigate the risk associated to the recurrence of earthquakes, the GSHAP promotes a regionally coordinated, homogeneous approach to seismic hazard evaluation; the ultimate benefits are improved national and regional assessments of seismic hazards, to be used by national decision makers and engineers for land use planning and improved building design and construction. The GSHAP was implemented in the ۱۹۹۲-۱۹۹۸ period and is coming to conclusion. All regional activities are now completed, and the publication of all regional results and of the GSHAP map of global seismic hazard is under way. Regional reports, GSHAP yearly reports, summaries and maps of seismicity, source zones and seismic hazard are on the GSHAP homepage on http://seismo.ethz.ch/GSHAP/. This report summarizes the development, the regional activities and the achievements of the GSHAP.