G. Babayev¹ , S. Agayeva¹ , L. Telesca² , N. Niemi³ , T. Ismail-Zade¹ , I. Muradi¹ , Y. Aliyev¹

¹Institute of Geology and Geophysics, Azerbaijan National Academy of Sciences
²Institute of Methodologies for Environmental Analysis, National Research Council
³University of Michigan

Abstract:

Site-specific deterministic hazard assessment at respective locations of the north-eastern region of Azerbaijan provides estimates of the amplification factor on local soil conditions. Topics of interest include moment magnitude, seismic energy, b-value, simulated earthquake scenario-based Peak Ground Acceleration (PGA), site effects, rock site characterization and intensity. This study is a large scale seismicity analysis for seismic source zone clarification and estimation of maximum earthquake magnitude. The earthquake catalogue from the Republican Center of Seismological Survey (RCSS) at Azerbaijan National Academy of Sciences (ANAS) was used. The intensity distribution classifies regions in the highest hazard level with intensity value of 7 and above in the western and also in the eastern part of the area. The b-value result shows that a decrease is observed in the western part of the region and in some areas of the northern part which is an indication of higher stress in those areas. The very high PGA is scattered also in the western and eastern parts. It may have significant impact on engineering design, especially for critical facilities in those areas. Independently from the epicenter of scenario earthquakes, the low and very low PGA is scattered in the central part of the study area.