SEISMOTECTONIC MODEL OF SOUTHERN KAZAKHSTAN AS A BASIS FOR SEISMIC HAZARD ASSESSMENT
СЕЙСМИКАЛЫҚ ҚАУІПТІ БАҒАЛАУДЫҢ НЕГІЗІ РЕТІНДЕ ОҢТҮСТІК ҚАЗАҚСТАННЫҢ СЕЙСМОТЕКТОНИКАЛЫҚ МОДЕЛІ
Stepanenko N.P. Kurilova O.K. Erkinova A.B. Kaidash T.M.
September-October 2025National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2025#2025-September-OctoberIssue 5253 - 266 pp.
In seismological and seismotectonic respects, the Aral-Karatau seismically dangerous region, which includes Southern Kazakhstan, has not been sufficiently studied. However, for this region there are detailed geological and geophysical materials, the capacity of the earths crust, active mantle, etc. At different times, seismic events with a magnitude of M=2.5-7.5 were recorded on the territory of Southern Kazakhstan, which indicates the presence of potentially dangerous seismogenic zones with the maximum magnitude of expected earthquakes. These zones are sources of powerful dynamic impacts on the geological environment, and through it-on various building structures and the human habitat. According to established concepts, the activity of seismic regions is predetermined by the previous history of their geological development, especially at the last neotectonic stage. A regional seismotectonic model (Map of seismogenic zones) of real and potential zones of occurrence of earthquake sources in the studied territory has been developed based on a set of geophysical, geological-tectonic and seismological data. The seismotectonic model is the basis for seismic intensity calculations in a probabilistic variant, as well as for forecasting seismic impacts in peak ground accelerations. The map of tectonic faults of Southern Kazakhstan can be used in various seismotectonic and geodynamic constructions, including those of an applied nature for forecasting dangerous natural processes associated with the destruction of the earths crust. Together with the database, it is a solid foundation for the accumulation of information, its tectonophysical analysis and the development of other cartographic projects, which will allow a deeper understanding of the features of the seismotectonic process of Southern Kazakhstan.
seismic potential , seismotectonic model , тectonic fault
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National Scientific Center for Seismological Observations LLP and research “Ministry of Emergency Situations of the Republic of Kazakhstan, Almaty, Kazakhstan
National Scientific Center for Seismological Observations LLP and research “Ministry of Emergency Situations of the Republic of Kazakhstan
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