The technogenic Bachat earthquake of June 18, 2013 (ML = 6.1) in the Kuznetsk Basin—the world’s strongest in the extraction of solid minerals

Еманов, А. Ф.; Fateev, A. V.; Leskova, E. V.

doi:10.3103/s0747923917040041

Cited by 20 publications

(15 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…] В настоящей работе предпринята попытка разобраться, в какой мере горные работы в приповерхностных областях коры способны стать причиной крупного землетрясения и какие именно процессы могут оказаться наиболее вероятным триггером динамической подвижки в очаге Бачатского землетрясения. Вероятные геометрические параметры плоскости разрыва получены в ходе анализа структурно-тектонической обстановки региона и опубликованных сведений о местоположении афтершоков [Emanov et al, 2017]. Показано, что инициирование событий такого размера общим уровнем антропогенной нагрузки на регион или непосредственным воздействием сейсмических колебаний от массовых взрывов маловероятно.…”

Section: институт динамики геосфер ран москва россияunclassified

“…Расположение очага Бачатского землетрясения и его афтершоков [Emanov et al, 2014[Emanov et al, , 2017 показывает, что они приурочены к зоне Кутоновского взбросо-надвига, разделяющего Беловский и Чертинский блоки. Сместитель этого крупноамплитудного разлома, расположенного в окрестности Бачатского угольного разреза, имеет запад-юго-западное падение и северо-запад-юго-восточное простирание.…”

Section: геолого-тектоническое строение районаunclassified

“…Интенсивность колебаний в эпицентральной зоне землетрясения составила I 0 =7 баллов. В 5-балльную зону попали города Кузбасса, землетрясение ощущалось и за пределами Кемеровской области [Emanov et al, 2014[Emanov et al, , 2017.…”

Section: Introductionunclassified

“…С одной стороны, расположение гипоцентра и большинства афтершоков непосредственно под карьером наводит на мысль об индуцированной природе события. Ряд авторов считают несомненным, что землетрясение было инициировано техногенной деятельностью [Emanov et al, 2014[Emanov et al, , 2017Batugin, 2015;Adushkin, 2016;и др. ], приводя, впрочем, в качестве аргументов лишь общие соображения о влиянии разрушения, извлечения и перемещения значительных объемов горной породы, об изменении существующих в массиве естественных геодинамических и гидродинамических режимов под воздействием комплекса техногенных нагрузок [Adushkin, 2016] или о снижении нормального сжатия пологонаклонных сместителей взбросов [Batugin, 2015].…”

Section: Introductionunclassified

See 3 more Smart Citations

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

Section: институт динамики геосфер ран москва россияunclassified

Section: геолого-тектоническое строение районаunclassified

Section: Introductionunclassified

See 2 more Smart Citations

On the genesis of the 2013 Bachat earthquake

Кочарян

Кишкина

Budkov

et al. 2019

Geodin. tektonofiz.

View full text Add to dashboard Cite

show abstract

“…This earthquake with a magnitude of ML = 6.1 occurred on June 18, 2013, in Kuzbass in the immediate vicinity of the Bachatsky coal mine. Ground motion intensity within the earthquake epicentral zone was 7 points [Emanov et al, 2014[Emanov et al, , 2017.…”

Section: Introductionmentioning

confidence: 99%

Seismic activity in the focus of the Uglegorsk earthquakes, Sakhalin Island in relevance to intensive development of coal deposits

Kostylev

Boginskaya

Zakupin

2021

Preprint

View full text Add to dashboard Cite

Induced seismicity is an increase in seismic activity caused by the human engineering. An example of such activity is the mineral exploration, large water reservoirs construction, exploitation of underground oil and gas storages, etc. The authors studied the seismicity in the Uglegorsky district of Sakhalin region, where the Solntsevskoye brown coal field is located, which is the most promising in the island. Its area is over 100 sq. km, and productive strata of the Verkhneduiskaya formation with a thickness of up to 600 m contains 12 coal seams, 8 of which are working. Active mining of brown coal is carried out at the Solntsevsky coal mine, and blasting operations are performed on a large scale, that, as a result, does not exclude the relation of the seismic process to technogenic seismicity. The earthquake recurrence curves for two decades beginning from 2000 to the present were constructed in the work to compare the characteristics of the seismic regime in the studied area. The difference in the slope angle of recurrence graph during the period of 2011-2020 (the period of the most active development of the Solntsevsky coal mine) from the previous decade is quite significant. The maps of spatiotemporal distribution of seismic events epicenters in the vicinity of Solntsevsky coal mine are constructed. The contraction of zones of seismic events concentration to the mining areas, first of all to the Solntsevsky coal mine, have been found. Such a combination allows us to talk about an increase in seismicity of the region during the last years and change in its character from the natural to a mixed natural and technogenic. The focal mechanisms of the largest earthquakes occurred in the Uglegorsky district have been constructed in order to prove the change in seismicity character and reasons for the earthquake occurrence in the studied area. The mechanisms of seismic events of 2020 are classified as strike-slip faults, that is not character for the most earthquakes on the territory of Sakhalin Island. The authors made an attempt to determine the regularities of the parameters of the produced blasts and earthquakes through dynamic parameters of the seismic events foci by means of studying the frequency content of earthquakes and blasts in order to determine a corner frequency from the focal velocity spectrum.

show abstract

Potential triggers for large earthquakes in open‐pit mines: A case study from Kuzbass, Siberia

Kocharyan

Кишкина

et al. 2022

Deep Underground Science and Engineering

View full text Add to dashboard Cite

The extraction and movement of rock during mining operations is considered a possible trigger for slip along the fault. In this study, possible anthropogenic causes were analyzed for triggering the earthquake with the local magnitude of M L = 6.1 (at a depth of 4 km just beneath the quarry), in the vicinity of the large coal open-pit mine in Russia. This event was the largest earthquake associated with a quarry (an open pit). A sufficiently deep occurrence of the source testified that seismic vibrations were produced in a dynamic slip along a preexisting and prestressed tectonic fault. Analytical calculations were conducted of increments of normal and shear stresses at fault planes with several dip angles at depths corresponding to the probable location of the hypocenter of the Bachat earthquake. As the results show, long-term rock excavations bring a prestressed thrust fault closer to the ultimate Coulomb strength, and stress variations at those depths may suffice to initiate a movement along the fault. By measuring seismic vibrations at different quarries and mines in Russia, the dynamic effect at the supposed depth of the source occurrence could be reliably estimated. As is shown, the ultimate anticipated dynamic deformations are noticeably lower than corresponding values produced by seismic waves of distant earthquakes in the case when the effects of dynamic triggering were observed. Accordingly, the seismic effect of explosions cannot trigger a large earthquake with deep source occurrence. Operations in open-pit mines can only bring forward the moment of an earthquake at a potentially seismogenic fault. At the same time, the numerical calculations reveal that a branching network of underground tunnels located at several horizons can noticeably reduce the effective shear modulus of the host rock. This effect can even provoke a dynamic movement at a previously aseismic fault.

show abstract

The technogenic Bachat earthquake of June 18, 2013 (ML = 6.1) in the Kuznetsk Basin—the world’s strongest in the extraction of solid minerals

Cited by 20 publications

References 3 publications

On the genesis of the 2013 Bachat earthquake

On the genesis of the 2013 Bachat earthquake

Seismic activity in the focus of the Uglegorsk earthquakes, Sakhalin Island in relevance to intensive development of coal deposits

Potential triggers for large earthquakes in open‐pit mines: A case study from Kuzbass, Siberia

Contact Info

Product

Resources

About