A New Approach to Hazard Control of Human-Triggered Earthquakes near Mining Facilities

IF 0.7 4区地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY Doklady Earth Sciences Pub Date : 2024-09-04 DOI:10.1134/s1028334x24603213

V. V. Adushkin, A. N. Besedina, G. G. Kocharyan, I. E. Semenova, S. A. Zhukova, O. G. Zhuravleva

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Abstract

It is proposed in this paper to use the focal characteristics of small seismic events, in particular, the scaled energy and the rupture propagation velocity, as indicators of possible dynamic movements along a fault. The two sites selected for analysis underwent microseismic events induced by mining operations. The first site, the Korobkovskoe iron ore deposit of the Kursk Magnetic Anomaly, is located in the aseismic region. The second site, the apatite–nepheline deposit of the Khibiny massif, is characterized by relatively intensive natural and human-triggered seismicity. Based on the results of the analysis, the values of the scaled seismic energy and the rupture propagation velocity are drastically different at the deposits under consideration. At the apatite–nepheline ore deposit, the parameter values are close to the range of values characteristic for “normal” earthquakes. At the KMA deposit, the obtained anomalously low values of the scaled energy and the rupture propagation velocity correspond to “slow” earthquakes. The results obtained are indicative of the prospects for using the selected parameters as indicators of possible large dynamic events at the studied site of the fault zone.

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采矿设施附近人为引发地震的危害控制新方法

摘要本文提出利用小地震事件的焦点特征，特别是能量标度和破裂传播速度，作为断层可能发生的动力运动的指标。为进行分析而选择的两个地点都发生了由采矿作业引发的微震事件。第一个地点是库尔斯克磁异常区的 Korobkovskoe 铁矿，位于无地震区。第二个地点是 Khibiny 丘陵的磷灰石-霞石矿床，其特点是自然和人为触发的地震相对密集。根据分析结果，在所考虑的矿床中，地震能量和断裂传播速度的比例值有很大不同。在磷灰石-霞石矿床，参数值接近 "正常 "地震的特征值范围。在 KMA 矿床，所获得的标度能量和断裂传播速度的异常低值与 "慢速 "地震相对应。所获得的结果表明，将所选参数作为断层带研究地点可能发生的大型动力事件的指标是有前景的。

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来源期刊

Doklady Earth Sciences 地学-地球科学综合

CiteScore

1.40

自引率

22.20%

发文量

138

审稿时长

3-6 weeks

期刊介绍： Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.