engleski

Deterministic Seismic Zoning of the Croatian Territory Derived From Complete Synthetic Seismograms

The regional seismic hazard in Croatia is assessed using a deterministic approach, which computes synthetic seismograms at a set of grid points. The input for this computation is represented by available source and structural models. A set of simplified structural models is proposed for Croatia, derived from travel time data analysis, and assigned to a number of regional polygons. The set of seismic sources are parametrized using the knowledge about focal mechanisms, the seismogenic areas and the regional seismicity. A map of the maximum ground acceleration at 1 Hz and the design ground acceleration is chosen to represent the shakeability and the seismic hazard. The most dangerous area of the country is southern Dalmatia. A comparision is made with acceleration maps derived from attenuation relations used at present in Croatia.

seismic hazard; synthetic seismograms; structural models; acceleration

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