Seismic effect assessment of the southern slope of Greater Caucasus (Azerbaijan) based on the earthquake scenarios: ground parameters and acceleration models


  • G. R. Babayev Institute of Geology and Geophysics of the National Academy of Sciences of Azerbaijan, Azerbaijan
  • S. T. Agayeva Institute of Geology and Geophysics of the National Academy of Sciences of Azerbaijan, Azerbaijan
  • T. T. Ismail-zade Institute of Geology and Geophysics of the National Academy of Sciences of Azerbaijan, Azerbaijan
  • I. B. Muradi Institute of Geology and Geophysics of the National Academy of Sciences of Azerbaijan, Azerbaijan
  • Ya. N. Aliyev Institute of Geology and Geophysics of the National Academy of Sciences of Azerbaijan, Azerbaijan



scenario earthquake, the southern slope of the Greater Caucasus, maxi-mum accelerations, amplification of the seismic wave amplitude


In this paper, earthquake scenarios parameters were assessed for deterministic seis-mic hazard of the southern slope of Greater Caucasus (Azerbaijan). Historically, there occurred strong earthquakes in the studied region. Series of soft and strong earthquakes occurred for the recent years on the southern slope of Greater Caucasus in Azerbaijan in Balakan (14.10.2012, M = 5,6; 29.06.2014, M = 5,3); Zagatala (07.05.2012, M = 5,7; 18.05.2012, M = 5,0; 05.06.2018, M = 5,5); Sheki (earthquake swarm 05.02.2004, M = 3,2 ¸ 4.6); Sheki-Oguz (04.09.2015, M = 5,9); Gabala 04.10.2014, M = 5,0); Ismailli (05.02.2019, M = 5,2) demonstrates the increase of seismic activity in the given region and proves once aga-in the necessity and actuality of continuation of the seismic hazard assessment resear-ches. For earthquake scenarios of various distances, average response spectrum (5 % attenuation) of surface ground fluctuation was plotted, peak ground acceleration were assessed at the maximum magnitude, series of peak ground acceleration models were simulated at respective MSK-64 intensity, and also amplification factor distribution map. The comparative analysis allows presuming that amplification occurs due to the resonance processes, that is, softer soils produce seismic wave amplitude amplification as a result of impedance differences of those layers and harder rocks. Seismic intensity increase is observed in the sites with soft-cemented sand-clayey soils, although with sands-tones, limestone and sandy marlstone of various thicknesses. It is demonstrated that ground displacements are various and not obviously oriented towards seismic source.


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How to Cite

Babayev, G. R., Agayeva, S. T., Ismail-zade, T. T., Muradi, I. B., & Aliyev, Y. N. (2019). Seismic effect assessment of the southern slope of Greater Caucasus (Azerbaijan) based on the earthquake scenarios: ground parameters and acceleration models. Geofizicheskiy Zhurnal, 41(3), 170–188.