Probabilistic Seismic Hazard Assessment for Azerbaijan

Onur, Tuna; Gok, Rengin; Yetirmishli, Gurban; Herrera, Carlos; Godoladze, Tea; Bondar, Istvan; Pitarka, Arben; Kazimova, Sabina; Chiang, Andrea

doi:10.2172/2478051

DOE OSTI · 2478051

Probabilistic Seismic Hazard Assessment for Azerbaijan

Onur, Tuna·Gok, Rengin·Yetirmishli, Gurban·Herrera, Carlos·Godoladze, Tea·Bondar, Istvan·Pitarka, Arben·Kazimova, Sabina·Chiang, Andrea

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Abstract

Probabilistic Seismic Hazard Assessments (PSHA) underpin the determination of seismic loads in most contemporary seismic provisions of building codes around the world. Modern building codes are migrating towards using the entire uniform hazard spectrum at a range of vibration periods (typically up to 4 s or 10 s) rather than a single peak value such as peak ground acceleration (PGA), thus requiring a larger range of PSHA outputs. The hazard maps in the current version of the building code of Azerbaijan (2011) are in terms of intensity and peak ground acceleration. Recognizing the need for an up-to-date seismic hazard assessment in the country, Seismic Cooperation Program (SCP) under the Lawrence Livermore National Laboratory (LLNL) undertook, in coordination with the Republican Seismic Survey Center of the Azerbaijan National Academy of Sciences and the Azerbaijan Scientific Research Institute of Construction and Architecture, a PSHA study that reflects new seismic data recorded locally and recent research conducted nationally and regionally since the last update to the building code. The PSHA framework for this project was designed to help develop a new earthquake catalogue, to incorporate a novel characterization of ground motions that specifically reflects the attenuation characteristics in the eastern Caucasus, and to generate hazard information in a form that is useful for an update of the current building code or the development of a new building code for Azerbaijan. The project also aimed to provide training and support for the local seismologists and engineers related to the seismic hazard models, probabilistic seismic hazard results and their use towards changes in the building code.

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Onur, Tuna, Gok, Rengin, Yetirmishli, Gurban, Herrera, Carlos, Godoladze, Tea, Bondar, Istvan, Pitarka, Arben, Kazimova, Sabina, Chiang, Andrea. 2024-11-01. Probabilistic Seismic Hazard Assessment for Azerbaijan. https://doi.org/10.2172/2478051

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