Monitoring of seismic activity near the Kaltan open pit and Alardinskaya mine (Kuzbass)

A.A. Emanov1,2, A.F. Emanov1, A.V. Fateev1,2

1 Altay-Sayan Branch of Federal Research Center “United Geophysical Service of Russian Academy of Sciences”, Novosibirsk, Russia

2 Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia

Corresponding author: A.F. Emanov, e-mail: emanov@gs.nsc.ru

Abstract. According to the results of monitoring with a temporary network of seismological stations in the south of Kuzbass in the area of seismic activation of technogenic nature, formed under the simultaneous impact of open and underground coal mining, the spatial structure of activation, its development in time and connection with tectonic disturbances are studied in detail. Seismic activation near underground workings differs locally in area, with a large number of earthquakes with magnitudes ML ≤ 2. For three closely located coal mines there is a general seismic activity, inside of which, as a local zone, there is activation of underground workings, characterized by the strongest earthquakes with ML in the range of 3 ÷ 4. Depths of foci have a two-modal distribution with maxima in the range of 1–1.5 km and in the range of 2–3 km. Both in the area of mines and in the area of open mine workings, the subsurface is much more deeply seismically activated than the workings. The seismic process in time is not stationary and pulsating.

Keywords: induced seismicity, Kuzbass, earthquakes, industrial explosions

About the authors:

EMANOV Aleksey Alexandrovich – Candidate of Geological and Mineralogical Sciences, Deputy Director for Research, Altay-Sayan Branch of Federal Research Center “United Geophysical Service of Russian Academy of Sciences”. Russia, 630090, Novosibirsk, prosp. Ac. Koptyuga, 3; Senior Researcher, Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch of Russian Academy of Sciences. Russia, 630090, Novosibirsk, prosp. Ac. Koptyuga, 3. E-mail: alex@gs.nsc.ru

EMANOV Alexander Fedorovich – Doctor of Technical Sciences, Branch Director, Altay-Sayan Branch of Federal Research Center “United Geophysical Service of Russian Academy of Sciences”. Russia, 630090, Novosibirsk, prosp. Ac. Koptyuga, 3. E-mail: emanov@gs.nsc.ru

FATEEV Alexander Vladimirovich – Senior Researcher, Altay-Sayan Branch of Federal Research Center “United Geophysical Service of Russian Academy of Sciences”. Russia, 630090, Novosibirsk, prosp. Ac. Koptyuga, 3; Leading Engineer, Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch of Russian Academy of Sciences. Russia, 630090, Novosibirsk, prosp. Ac. Koptyuga, 3. E-mail: fateev@gs.nsc.ru

Cite this article as: Emanov A.A., Emanov A.F., Fateev A.V. Monitoring of seismic activity near the Kaltan open pit and Alardinskaya mine (Kuzbass), Voprosy Inzhenernoi Seismologii (Problems of Engineering Seismology). 2019. V. 46, No. 3. P. 5–15. [in Russian]. https://doi.org/10.21455/VIS2019.3-1

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990