Natural and induced seismic activity in Kuzbass

Yakovlev, D. V.; Lazarevich, T.I.; Tsirel, S. V.

doi:10.1134/s1062739149060038

Cited by 21 publications

(11 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…What happens here is obviously the overlapping impact of two factors (natural and anthropogenic) on realization of the geodynamic hazard. Actually, this has long been re ected in the terms denoting induced earthquakes: natural-technogenic, technogenic-natural, trigger-type earthquakes [12,62,31]. However, seismic zoning maps are still made taking into account just one single factor (natural).…”

Section: Possible Nature Of the Bachat And Other Induced Earthquakesmentioning

confidence: 99%

 On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

Batugin

2020

Preprint

View full text Add to dashboard Cite

It is accepted as a well-known fact that a similar anthropogenic impact on the Earth's crust in different places causes dissimilar response. Seismic zoning maps are not designed to predict such geodynamic hazards as rock bursts, induced earthquakes, reactivation of tectonic faults, etc., and require careful adjustment in places of intense impact on the subsurface strata. In this regard, we consider the classification of the Earth's crust areas according to the degree of geodynamic hazard, i.e. its potential geodynamic response to anthropogenic intervention. This classification is based on the concept that there exists a critically stressed layer within the Earth’s crust. It is believed that such critically stressed layer within the Earth’s crust extends from the Earth's surface to a certain depth, which at each point depends on the nature of the interaction between crustal blocks of different hierarchical levels.From this perspective, anthropogenic impact, such as mining operations, represents a direct impact upon the critically stressed zone. The hypothesis is accepted that the thicker is the critical stressed rock layer, the stronger might be the response to anthropogenic intervention, as it has more accumulated energy. Four categorized of the geodynamic threat were found and mapped. To verify this classification, the manifestations of the geodynamic hazards were studied. The intensity of geodynamic hazard increases from the 1st area to the 4th area. The phenomenon of large induced seismic events with hypocenters at great depths is explained by the base of this idea and could be associated with anthropogenic impacts from the surface directly on the regional zone of the critical stressed rock massif. The approach can be used to assess the geodynamic consequences of human exposure to the Earth's crust.

show abstract

Section: Possible Nature Of the Bachat And Other Induced Earthquakesmentioning

confidence: 99%

 On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

Batugin

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Основная часть мелких сейсмических событий приурочена непосредственно к месту ведения горных работ и приходится на то время, когда производятся массовые взрывы на угольных разрезах, или через 1-3 ч после них [Yakovlev et al, 2013]. В контексте данной работы наибольший интерес представляют сильные землетрясения, связанные с подвижками по разломам.…”

Section: общий уровень техногенного воздействияunclassified

“…Выбор событий по глубине также не приводит к успеху: оценка глубины часто не достоверна в условиях недостаточно плотных сейсмических измерений. Например, событие 15.02.1998 г., имевшее, согласно каталогу ISC, глубину 0 км, по данным местных наблюдений являлось землетрясением с глубиной очага 0.8-1.5 км [Yakovlev et al, 2013].…”

Section: общий уровень техногенного воздействияunclassified

On the genesis of the 2013 Bachat earthquake

Кочарян

Кишкина

Budkov

et al. 2019

Geodin. tektonofiz.

View full text Add to dashboard Cite

The ML 6.1 earthquake that occurred on June 18, 2013 in Kuzbass is the strongest seismic event related to mining operations in this region. Opinions about its genesis differ. On the one hand, its hypocenter and most aftershocks occurred directly underneath the Bachat open-pit mine, which suggests that this seismic event was due to anthropogenic impacts. On the other hand, the earthquake focus was located at a depth of several kilometers, which, according to some authors, argues against the anthropogenic factor-the technogenic change in the parameters of the stress field was insignificant against the lithostatic pressure and, especially, the rock strength (e.g. [Lovchikov, 2016]). Our study aims to discover and assess an impact of the mining operations in the near-surface areas of the crust, investigate whether the Bachat earthquake was caused by the mining operations, and clarify which processes in particular were the most probable triggers of dynamic movement in the Bachat earthquake source. The probable geometrical parameters of the fault plane were estimated from the structural and tectonic conditions of the study area and the published locations of the aftershocks [Emanov et al., 2017]. It is established that seimic events of magnitudes similar to that of the Bachat earthquake cannot be caused by the overall anthropogenic load on the area, and it is unlikely that such a strong earthquake may occur due to the direct effects of seismic vibrations resulting from mass explosions during the mining operations. Our analytical models and numerical simulations, as well as the analysis of seismological observation data show that the most probable factor that initiated dynamic movements in the earthquake source was the extraction of the huge rock volume and its transportation from the Bachat open-pit mine. It should be noted that the size of the zone, wherein the geomechanical initiation criteria are met, is considerably larger than the critical size of a nucleation zone for a M 6 earthquake. However, open-pit mining operations can hardly affect the localization of strong earthquake sources. Mining operations can only trigger a seismic event that has been already prepared by the natural evolution of the crust.

show abstract

“…LCD used the rock pressure control by the complete collapse of the roof of coal seams. Excavation of coal seams at different depths with the collapse of the roof rocks causes the appearance of large zones, with reduced physical and mechanical properties in comparison with the host rocks [Batugin et al, 2016;Bykadorov et al, 2018;Tarasenko et al, 2017]. This is due to the physical appearance of voids and the filling of these voids with water.…”

Section: Structural and Tectonic Model Of Leninsky Coal Depositmentioning

confidence: 99%

Geoecological aspects of stress-strain state modeling results of Leninsky coal deposit (Kuzbass, Russia)

Manevich¹,

Kolikov²,

Egorova³

2019

Russ. J. Earth Sci.

View full text Add to dashboard Cite

This paper describes the analysis of numerical simulation results of the stress-strain state of Leninsky coal deposit area (Kuzbass) before and after allotment mining of mining fields specified in this article. The analysis of the influence of coal mining on the stress-strain state of rocks is performed taking into account the fault tectonics of the area. The particularities of the influence of regional stress field changes on geoecological safety are considered. The geoecological consequences of the exploitation of coal seams of the Leninsky coal deposit were analyzed.

show abstract

Natural and induced seismic activity in Kuzbass

Cited by 21 publications

References 2 publications

On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

On the genesis of the 2013 Bachat earthquake

Geoecological aspects of stress-strain state modeling results of Leninsky coal deposit (Kuzbass, Russia)

Contact Info

Product

Resources

About

Natural and induced seismic activity in Kuzbass

Cited by 21 publications

References 2 publications

&nbsp;On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

&nbsp;On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

On the genesis of the 2013 Bachat earthquake

Geoecological aspects of stress-strain state modeling results of Leninsky coal deposit (Kuzbass, Russia)

Contact Info

Product

Resources

About

On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat

On Classification of the Earth's Crust Areas by the Level of Geodynamic Threat