Seismic zonation

Abstract

Seismic zonation is a process of estimation of the seismic hazard in terms of parameters of ground motion for a certain area. Assessment results in seismic zonation map compilation, which reflects territorial distribution of the seismic hazard (see Seismic Hazard). Seismic zonation map is useful for hazard reduction such as earthquake-resistant design of structures, risk analysis, land-use planning, etc. Many countries apply seismic hazard maps in anti-seismic codes. Recently, the probabilistic seismic hazard analysis method is more commonly used in compiling seismic zonation map. The seismic zonataion maps take the exceeding probability of 10% within 50 years (return period 475 years) as standard. Seismic zonation will develop with the development of seismic hazard assessment methodology and anti-seismic policy.