Gulam R. BabayevGeology and Geophysics Institute, Azerbaijan National Academy of Sciences · Seismology and Seismic Hazard
Gulam R. Babayev
Professor, Doctor in Earth's Sciences
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45
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Introduction
Skills and Expertise
Publications
Publications (45)
The research is focused on the study of criteria in defining the scenario earthquakes for the deterministic seismic hazard analysis. Deterministic approach in seismic hazard analysis is a worldwide applied method. In deterministic analysis, the effect of the scenario earthquake is considered. Scenario earthquake is supposed to be the most severe ea...
The Caspian Sea is located on a basin of Eurasian plate surrounded by
Azerbaijan, Russia, Kazakhstan, Turkmenistan, Iran. Seismic hazard
assessment of the Caspian Sea takes an important role for the exploitation of
offshore facilities (Brooks et al., 2020), such as oil and gas reserves that are
essential for the surrounding countries, especially fo...
Presents results of the research titled "Offshore ground motion estimation for the Caspian Sea based on the encompassing scenario epicenters" in terms of illustrations and subheadings such as Introduction, Method, Results and Conclusion.
We present the main features of the frontal structure, known as Kur Fault, of the Plio-Quaternary Kura fold-and-thrust belt in the Greater Caucasus (Azerbaijan). The Kur Fault has been analysed thanks to geological-structural and geomorphological surveys of its whole length, integrated by a relocation of instrumental seismicity, data on historical...
This research aims to distribute b-value estimation spatially on the Mingachevir water reservoir area, a seismically active zone situated in Azerbaijani part of Kur depression. There are several researches proposing a relation between seismicity and b-value (Babayev G. et. al., 2020, Babayev T. et. al., 2023b, Telesca et. al., 2020). It is shown th...
A poster for presenting the conference paper with the title "Spatial distribution of b-value on the Mingachevir water reservoir area for seismicity analysis applying the microzonation method of Babayev G. et. al., 2020" at EGU General Assembly 2024.
In the context of assessing seismic hazard, accurately predicting ground motion stands out as a crucial task. Achieving precision in ground motion modeling proves valuable in revealing the actual pattern, even when faced with insufficient data on soil structure, provided there is precise information about the seismic source. This study introduces a...
Məqalə Azərbaycan Respublikası Şəmkir rayonu və ətraf ərazilərinin tektonika, geologiya, geomorfologiya və seysmiklik baxımından ədəbiyyat təhlili yolu ilə öyrənilməsinə həsr olunur. Tədqiqat sahəsi Kiçik Qafqazın şimal-şərq hissəsində və Böyük Qafqazın cənub yamacı ilə Kiçik Qafqazın şimal hissəsi arasında yerləşən Orta Kür çökəkliyində təqribən 4...
This research was dedicated to the assessment of seismic hazard through one of the important values characterizing strong ground motion as peak ground acceleration (PGA). The proposed research plots and examines average models of ground motion in PGA values and intensity based on the computation of the local- and near-field earthquake parameters. P...
In view of seismic hazard assessment, the adequate
prediction of the ground motion is one of the most
important tasks.
The current study was resulted with the maps of
amplification factor coefficient through the study
area, average peak ground acceleration distribution
and the map of the average intensity for the research
area by which it is deduce...
The aim of the present work is to furnish a detailed picture of the space-time-magnitude statistical properties of the instrumental seismic catalogue of Azerbaijan and surrounding regions from 2003 to 2016. Although Azerbaijan is one of the most seismically active areas in the world, an exhaustive description of the statistical properties of the ti...
This work contributes to depict the current seismicity, fault kinematics, and state of stress in the Greater Caucasus (territories of Georgia, Azerbaijan and Russia). We merged and homogenized data from different earthquake catalogues, relocated~1000 seismic events, created a database of 366 selected focal mechanism solutions, 239 of which are new,...
Aquifers in the coastal region are exposed to marine water intrusion due to the interaction with the saline seawater and freshwater quality for the coastal communities deteriorates because of these natural phenomena. The aim of this study is to determine geometric characteristics and map the marine intrusion interface in the coastal aquifer of the...
The temporal variations of the instrumental
seismicity (0.5 ≤ML ≤ 3.5) recorded in the Mingechevir
area (Azerbaijan) between January 2010 to December
2018 and its relationship with the level variation of the
water reservoir was analysed in this study. The monthly
number of events was analysed by using the
correlogram-based periodogram, the singular...
In this paper seismic hazard for the sourthern slope of the Greater Caucasus (Azerbaijan) was assessed by using five major parameters: moment magnitude, simulated peak ground acceleration (PGA) from four target earthquakes, intensity scenario, amplification factor and b value. The deterministic scenario-based seismic hazard assessment method was ap...
Azerbaijan is characterized by a strong level of seismicity with earthquakes concentrated within several active areas. In this study, we calculated the source mechanism of earthquakes occurring in the northeastern part of Azerbaijan, by using the digital waveform data recorded by the Republican Seismic Survey Center (RSSC) at the Azerbaijan Nationa...
This work contributes to depict the current seismicity, fault kinematics, and state of stress in the Greater Caucasus (territories of Georgia, Azerbaijan and Russia). We merged and homogenized data from different earthquake catalogues, relocated ~1000 seismic events, created a database of 366 selected focal mechanism
solutions, 239 of which are new...
There are several viewpoints about the relationship of mud volcano eruptions with earthquakes, or earthquake occurrences with mud volcano eruptions. This paper demonstrates evaluation of dynamic strains triggered by Caspian earthquakes which occurred on the 25 th of No- vember, 2000, south of Baku city with M w 6.1 and 6.2. Consequently, we researc...
This work contributes to depict the current seismicity, fault kinematics, and state of stress in the Greater Caucasus (territories of Georgia, Azerbaijan and Russia). We merged and homogenized data from different earthquake catalogues, relocated ~1000 seismic events, created a database of 366 selected focal mechanism solutions, 239 of which are new,...
In this study, there was an attempt to estimate seismic hazard in terms of b-value distribution over the southern slope of Greater Caucasus (Azerbaijan). The southern slope of Caucasus (Azerbaijan) is influenced by tectonic activity driven by Arabian and Eurasian plate tectonics. The differences between seismotectonic characteristics are considered...
The aim of the present work is to furnish a detailed picture of the space-time-magnitude statistical properties of the instrumental seismic catalogue of Azerbaijan and surrounding regions from 2003 to 2016. Although Azerbaijan is one of the most seismically active areas in the world, an exhaustive description of the statistical properties of the ti...
The influence of topographic anomaly of the relief on the stress-strain state of the Caucasus lithosphere ( Azerbaijan ) and plotting the respective models have been considered in the paper.
Stress-strain state was studied by the finite element method with the application of software packages HypermeshTM and AbaqusTM
.. Based on the plotted models...
We investigated ground response for Baku (Azerbaijan) from two earthquakes of magnitude M6.3 occurred in Caspian Sea (characterized as a near event) and M7.5 in Shamakhi (characterized as a remote extreme event). S-wave velocity with the average shear wave velocity over the topmost 30 m of soil is obtained by experimental method from the VP values...
In this study, ground response analysis on different 255 sites in Baku city of Azerbaijan was done. The damage distribution is estimated on the basis of local site effects. Aiming to estimate local site effect, analysis of the ratio of horizontal to vertical (H/V) spectra of microtremor records was performed. The records are conducted with the Gura...
Исследованы деформации земной коры территории Азербайджана по результатам GPSS измерений на основе метода Шена [Shen et al., 1996]. Для оценки скорости деформации использовалось поле векторов скоростей территорий Азербайджана, Ирана, Грузии и Армении, полученных по данным GPSS измерений за период 1998–2012 годы. Установлено, что сжатия наблюдаются...
Urban earthquake scenario requires compilation and interpretation of topographical, geological, geotechnical, macroseismic, and instrumental data, along with identification of proper ground motion prediction and site response analysis. Within the intensive city planning and infrastructure improvement of Baku city (the capital of Azerbaijan), and du...
Although a relationship between the occurrence of large earthquakes and the eruptions of close mud volcanoes is well known, several uncertainties remain on understanding the triggering mechanisms. In the present study, we evaluate both the static and dynamic strains induced by earthquakes in the substratum of mud volcanoes. We studied the effects o...
The time series analysis of seismic sequences needs proper methodologies
that allow us to capture the main features of the time dynamics of
earthquakes. Among these features, the identification of periodicities
along with the quantification of their intensity represents an important
task, concerning the detection of regular dynamical behaviours, wi...
By complex analysis of GPS velocities, seismicity, fractal dimensions of the spatial distribution of seismic epicenters, focal mechanisms of the earthquakes, and stress state of the Earth’s crust, four seismic zones (Balaken-Zagatala, Sheki-Gabala, Shamakhy-Ismailly, and Absheron) are revealed within the southern slope of the Greater Caucasus. The...
На основе комплексного анализа данных GPS скоростей, сейсмичности, фрактальных размерноо стей пространственного распределения эпицентров землетрясений, механизмов очагов землетрясее ний и напряженного состояния земной коры южного склона Большого Кавказа были выделены чее тыре сейсмические зоны: БалакеннЗагатальская, ШекииГабалинская, ШамахыыИсмаилл...
The historical and instrumental catalog of the Absheron-Prebalkhan
region in the Caspian Sea area was analyzed in order to reveal the
existence of temporal clustering in the time dynamics of the seismicity.
The timespan of the catalog is from 1842 to 2012 and the magnitude of
the events ranges from 2.5 to 6.8. The Gutenberg-Richter analysis
indicat...
The 25th November 2000 earthquake raised public awareness about earthquake catastrophe. Although the city did not witness the heavy damages and life losses, however the event traced slight to moderate damage in Baku city. The distribution of damage is caused by local site effect. In this study, aiming to estimate local site effect, analysis of the...
A rapid growth of population, intensive civil and industrial building, land and water instabilities (e.g. landslides, significant underground water level fluctuations), and the lack of public awareness regarding seismic hazard contribute to the increase of vulnerability of Baku (the capital city of the Republic of Azerbaijan) to earthquakes. In this...
A rapid growth of population, intensive civil and industrial building, land and water instabilities (e.g. landslides, significant underground water level fluctuations), and the lack of public awareness regarding seismic hazard contribute to the increase of vulnerability of Baku (the capital city of the Republic of Azerbaijan) to earthquakes. In thi...
A rapid growth of population, intensive civil and industrial building, land and water instabilities (e.g. landslides, significant underground water level fluctuations), and the lack of public awareness regarding seismic hazard contribute to the increase of vulnerability of Baku (the capital city of the Republic of Azerbaijan) to earthquakes. In thi...
A rapid growth of population, intensive civil and industrial building, land and water instabilities (e.g., landslides, significant underground water level fluctuations), and the lack of public awareness regarding seismic hazard contribute to the increase of vulnerability of the Baku city to earthquakes. In this study, we use a quantitative approach...
This paper deals with the seismic hazard assessment for Baku and the Absheron peninsula. The assessment is based on the information on the features of earthquake
ground motion excitation, seismic wave propagation (attenuation), and site effect. I analyze active faults,
seismicity, soil and rock properties, geological cross‐sections, the borehole...