Instrumental geophysical monitoring in the territory of northern Caucasus

Заалишвили, В.Б.; Nevskaya, N. I.; Мельков, Д.А.

doi:10.1134/s1069351314020128

Cited by 19 publications

(11 citation statements)

References 1 publication

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“…Network operations are intended to develop the safety concept for people living in mountainous areas and for designing standard scenarios of hazardous geological processes (landslides, glacier motion with rock ice slides, earthquakes, etc.) [14][15][16].…”

Section: Discussionmentioning

confidence: 99%

Characteristics of Modern Horizontal Movements in Central Sector of Greater Caucasus According to GPS Observations

Рогожин¹,

Milyukov²,

Заалишвили³

et al. 2019

Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-Ecology of the No

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The article highlights the results of the first GPS measurements carried out along a geodetic profile that intersects all major geological structures in the Ossetian region of the Greater Caucasus. The interpretation of the measurement results was made in comparison with the results of neotectonic studies and data on the deep structure. The maximum decrease in the current transverse compression velocities was recorded in the region of the highest rise above the Earth's surface of a low-Q volume of the Earth's crust, which has a widening effect on the entire mountain structure. The presence of significant transverse displacements of the surface reflects the shear component along the largest faults of the Caucasian strike. The previously prognosticated significant decrease in the velocity of horizontal movements at the end of the aftershock process of the catastrophic Racha earthquake of 1991 on the southern slope of the Greater Caucasus was fully confirmed.

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Section: Discussionmentioning

confidence: 99%

Characteristics of Modern Horizontal Movements in Central Sector of Greater Caucasus According to GPS Observations

Рогожин¹,

Milyukov²,

Заалишвили³

et al. 2019

Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-Ecology of the No

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“…In connection with activation of dangerous natural processes and Kolka glacier slide on September 20, 2002 in particular, in 2003 the existing Republic-wide seismic observation network was transformed by the Geophysical Institute into the network of comprehensive observations "Karmadon parametric testing ground" (Fig. 1) [21][22][23][24][25][26][27].…”

Section: Seismological Observationsmentioning

confidence: 99%

Development and Realization of Program for Creation of International Research Center "Geological And Geophysical Testing Ground"

Заалишвили¹,

Kusraev²

2019

Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" Dedicated to the

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The recent studies demonstrate the activation of geodynamic processes characterized by intense movement of the earth crust, manifestation of newest magmatism and active development of glaciers. The studies of different authors note the migration of seismic phenomena from south to the territory of Caucasus with increasing magnitude by 2025-2030. This is conditioned by the influence of Anatolian and Arabian platforms on the Russian platform. The most seismically active are territories of Dagestan, Chechnya, Ingushetia, Northern Ossetia and Kabardino-Balkaria. The exogenic processes are widely spread in the North Caucasian Federal District. Thus, comprehensive monitoring of volcanic, seismic, glaciological and landslide dangers is high on the agenda together with possible connected catastrophes. It is assumed to identify renewable sources of endogenic energy, the estimation of possible building of ecologically pure geothermal plants and their profitability. The North Caucasus District can be considered as a unique natural laboratory for fundamental science, development of the mineral reserve base and energetics. The creation of the geological and geophysical testing ground will ensure safe life of population and development of the recreational sector.

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“…The local network of seismic digital stations of the first generation on the territory of the Republic of North Ossetia-Alania was organized and started operating in 1998-1999 with the support of the Ministry of Emergency Situations of the Russian Federation [7]. The catastrophic fall of the Kolka glacier in 2002 was recorded by the network.…”

Section: Development Of Seismic Observation Networkmentioning

confidence: 99%

“…The task of the modern system of seismological, geodynamic and gravimetric observations organization was stated [7]. The purpose of the network is the development of a concept for the population safety in mountain regions and the creation of reference scenarios for hazardous geological processes (landslides, glacier movements, earthquakes, etc.…”

Section: Development Of Seismic Observation Networkmentioning

confidence: 99%

“…With the support of the Ministry of Emergency Situations of the Russian Federation for RNO-A, the equipment was delivered to the area of the Kolka Glacier Lodge by helicopter on April 27, 2012, and later the group of climbers led by O.N. Ryzhanov at an altitude of 2,970 meters above sea level has installed and activated a seismic station, which became operational on May 19, 2012 (Figure 1, station code of KLK) [7]. …”

Section: Development Of Seismic Observation Networkmentioning

confidence: 99%

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Integrated Instrumental Monitoring of Hazardous Geological Processes Under the Kazbek Volcanic Center

Заалишвили¹

2018

GEOMATE

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Kazbek volcanic center is characterized by the complex interrelationship of various hazardous geological processes. The proximity of populated areas and infrastructure objects (the main one is the Georgian Military Road connecting Russia with South Caucasus) determines high social and economic risks of the region. Disasters of 2002 and 2014 caused by ice-rock fall govern importance of investigation of the area. It must be based on instrumental data collection and seismic monitoring is the first continuous technique covering both exogenous and endogenous processes, especially of possible volcanic activity and various postvolcanic phenomena. That's why complex observational network "Karmadon Parametric Range" was established in September 2003. The network recorded a collapse of the mass of ice and rocks in the region of the Devdorak glacier on May 17, 2014 and the movement of the formed stone-ice avalanche. Research group for the first time faced with the movement of massive extended objects seismic records processing and analysis. New techniques as energy release and wavelet-based spectral-temporal graphs were developed. Flow velocities are estimated on the basis of slope variation along the trace. As the result, determined accordance of the events of 2002 Kolka glaciers fall and the 2014 Devdorak region rockfall is probably an evidence of general formation nature of both processes. And the main aim is to determine early evidences of the future events on the basis of a new instrumental monitoring of Kazbek volcanic center system. It must reveal characteristics of the Kazbek volcano and significantly improve natural hazards safety of the region.

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Instrumental geophysical monitoring in the territory of northern Caucasus

Cited by 19 publications

References 1 publication

Characteristics of Modern Horizontal Movements in Central Sector of Greater Caucasus According to GPS Observations

Characteristics of Modern Horizontal Movements in Central Sector of Greater Caucasus According to GPS Observations

Development and Realization of Program for Creation of International Research Center "Geological And Geophysical Testing Ground"

Integrated Instrumental Monitoring of Hazardous Geological Processes Under the Kazbek Volcanic Center

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