Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 55495 10.2205/2023es000823 CEVNCN ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Modeling of Strong Ground Motion Within the Baikal Rift Zone: The Irkutsk Case Modeling of Strong Ground Motion Within the Baikal Rift Zone: The Irkutsk Case https://orcid.org/0000-0003-1677-4177 Скоркина Анна Александровна Skorkina Anna Aleksandrovna anna@mitp.ru Институт теории прогноза землетрясений и математической геофизики Москва Россия Institute of Earthquake Prediction Theory and Mathematical Geophysics Moscow Russian Federation 10 12 2023 10 12 2023 23 4 1 7 06 11 2022 20 09 2023 https://rjes.ru/en/nauka/article/55495/view

The Baikal Rift Zone is seismically active and each well recorded strong earthquake (for example, as the Kultukskoe earthquake (South of Baikal), on August 27, 2008, with Mw = 6.3) is the reason to refine existing models for seismic hazard estimates. There are several approaches to study strong ground motion, and one of them is to model synthetic accelerograms to reconstruct the rupture process. In this paper we are mostly interested in calculating accelerograms for the city of Irkutsk, considering source spectra with two corner frequencies, primarily, to reconstruct impact from the Kultukskoe earthquake.

The Baikal Rift Zone is seismically active and each well recorded strong earthquake (for example, as the Kultukskoe earthquake (South of Baikal), on August 27, 2008, with Mw = 6.3) is the reason to refine existing models for seismic hazard estimates. There are several approaches to study strong ground motion, and one of them is to model synthetic accelerograms to reconstruct the rupture process. In this paper we are mostly interested in calculating accelerograms for the city of Irkutsk, considering source spectra with two corner frequencies, primarily, to reconstruct impact from the Kultukskoe earthquake.

 earthquake source spectra strong ground motion the Kultukskoe earthquake synthetic accelerogram seismic hazard earthquake source spectra strong ground motion the Kultukskoe earthquake synthetic accelerogram seismic hazard The reported study was funded by the Russian Science Foundation, project number 20-17-00180, Development of the scenario approach in the problems of seismic hazard and risk assessment. The research was carried out using data obtained at a unique scientific installation “Seismo-infrasound monitoring complex of the Arctic permafrost zone and a complex of continuous seismic monitoring of the Russian Federation, adjacent territories and the world” (https://ckp-rf.ru/usu/507436/, http://www.gsras.ru/ unu/). The reported study was funded by the Russian Science Foundation, project number 20-17-00180, Development of the scenario approach in the problems of seismic hazard and risk assessment. The research was carried out using data obtained at a unique scientific installation “Seismo-infrasound monitoring complex of the Arctic permafrost zone and a complex of continuous seismic monitoring of the Russian Federation, adjacent territories and the world” (https://ckp-rf.ru/usu/507436/, http://www.gsras.ru/ unu/).

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