28 June 2021 to 2 July 2021
Europe/Vienna timezone

Updating seismic hazard models for Kuwait

29 Jun 2021, 09:00


e-Poster T1.2 - The Solid Earth and its Structure T1.2 e-poster session


Mr Abdelaziz Khairy (Kuwait institute for Scientific Research (KISR), Kuwait)


This research assesses the seismic hazard and deaggregation in the State of Kuwait. For this purpose, the historical and instrumental seismic catalogues of Kuwait and the active Zagros Seismic Belt were compiled, unifying the magnitudes, removing unnecessary earthquakes (seismicity declustering) and considering the completeness of the catalogues. Multi-seismotectonic models for the Kuwait region incorporate earthquake focal mechanisms, seismicity patterns, and the structural geological situation have been created to reduce epistemic uncertainty. The recurrence parameters as well as the maximum expected earthquake from each seismic source were fundamentally estimated. Appropriate ground motion attenuation relation within a logic tree formulation was mainly used in creating hazard maps. A state-of-the-art probabilistic approach is used herein to produce hazard maps at return periods of 75, 475, 975 and 2475 years (equivalent to 50%, 10%, 5% and 2%, respectively, probability of exceedance in 50 years) at periods of PGA, 0.1, 1 and 4 seconds. The computations of hazard maps were constructed using a spacing grid of 0.2° × 0.2° in the Kuwait area. Uniform hazard spectrum and deaggregation charts have been adopted for all six governorates of Kuwait.

Primary authors

Mr Abdelaziz Khairy (Kuwait institute for Scientific Research (KISR), Kuwait) Ms Shaimaa Mostafa (Zagazig University, Faculty of Science, Geology Department, Zagazig, Egypt) Mr Abdullah Al-Enezi (Kuwait institute for Scientific Research (KISR), Kuwait) Ms Farah Al-Jeri (Kuwait institute for Scientific Research (KISR), Kuwait)

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