Abstract
This paper presents research results of the study which aim is to reveal and quantitatively describe fractal properties of the European-Mediterranean seismotectonic model applied for seismic hazard assessment of the region under study. Several seismotectonic provinces are defined, and their nonlinear properties are calculated using both linear elements (boundaries of seismogenic units) and surface areas of the seismogenic units. The research is conducted on the basis of only formal relationships, not with data on real fault structures or other seismogenic elements, as the relationships have been accepted for seismic hazard calculations by the team of SESAME Project (Project Leader M. Jimenec) and published by Jimenec et al. [2001]. Special attention is paid to the Balkan seismotectonic model in order to develop a common seismotectonic model which uses data from the seismic hazard map for a period of 475 years (according the EUROCODE8), that was published in Muco et al. [2008]. All the calculations considered only the seismogenic units located in the earth crust, but not deeper seismogenic layers. It is concluded that most of the seismogenic provinces are similar in their fractal properties, which varied in a narrow range, except for the Adriatic one. The formal approach does not permit to explain these peculiarities.
Highlights
The present study is focused to the assessment of the fractal properties and the coefficients of the nonlinear behavior of the spatial distribution of the seismogenic zones in the European and Mediterranean regions
The area is divided into several seismotectonic provinces according to the fragmentation and the specific seismogenic properties of the earth crust for the separated seismic active zones
The separate zones could be characterized by their specific seismogenic properties, which could lead to different seismic impact on buildings and constructions [Ranguelov et al, 2001]
Summary
The present study is focused to the assessment of the fractal properties and the coefficients of the nonlinear behavior of the spatial distribution of the seismogenic zones in the European and Mediterranean regions. The separate zones could be characterized by their specific seismogenic properties, which could lead to different seismic impact on buildings and constructions [Ranguelov et al, 2001]. In that way this analysis gives the possibility for zone identification and comparison between different seismic provinces, each of them being most probably characterized by specific seismic hazard. It is important to mention that the time scale is not incorporated in this study, considering that all seismic events, which can affect the seismic hazard assessment, known from historical times, up to the present days are included. The deep seismic sources [Caputo, 1970] located deeper the earth crust are excluded of this study
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