Seismicity induced by mining: Ten years later

Gibowicz, S. J.; Lasocki, Stanisław

doi:10.1016/s0065-2687(00)80007-2

Cited by 93 publications

(50 citation statements)

References 150 publications

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“…First, this inconsistency was attributed to the presence of broadly defined types of mining events (e.g., Gibowicz and Kijko 1994): events directly related to the mining operations and events resulting from the release of residual tectonic stresses accumulated in the rock mass. These two types of events are characterized by extensively different properties and features.…”

Section: Discussionmentioning

confidence: 99%

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Time-dependent seismic hazard in Bobrek coal mine, Poland, assuming different magnitude distribution estimations

et al. 2017

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The purpose of this study is to evaluate seismic hazard parameters in connection with the evolution of mining operations and seismic activity. The time-dependent hazard parameters to be estimated are activity rate, Gutenberg-Richter b-value, mean return period and exceedance probability of a prescribed magnitude for selected time windows related with the advance of the mining front. Four magnitude distribution estimation methods are applied and the results obtained from each one are compared with each other. Those approaches are maximum likelihood using the unbounded and upper bounded Gutenberg-Richter law and the non-parametric unbounded and non-parametric upper-bounded kernel estimation of magnitude distribution. The method is applied for seismicity occurred in the longwall mining of panel 3 in coal seam 503 in Bobrek colliery in Upper Silesia Coal Basin, Poland, during 2009-2010. Applications are performed in the recently established Web-Platform for Anthropogenic Seismicity Research, available at https://tcs.ah-epos.eu/.

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Section: Discussionmentioning

confidence: 99%

“…Evidences for the existence of multimodal earthquake size distribution were presented in many papers (e.g., Gibowicz and Kijko 1994;Gibowicz and Lasocki 2001;Lasocki and Orlecka-Sikora 2008). Magnitude distribution may statistically significantly differ from the exponential distribution but the differences may be small (Urban et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Time-dependent seismic hazard in Bobrek coal mine, Poland, assuming different magnitude distribution estimations

et al. 2017

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“…The EDD location technique was originally proposed in order to include the specific demands of the mining seismic environment, such as event clustering (Gibowicz and Lasocki 2001;OrleckaSikora and Lasocki 2002) and continuous changing of the monitoring system (Mendecki and Sciocatti 1997;Rudzinski and Debski 2011), in the DD method. We expected the resulting algorithm to have a large enough spatial resolution to enable a detailed analysis of the structure of the spatial seismic clusters.…”

Section: Discussionmentioning

confidence: 99%

“…The main goal of seismic networks operating in mines is continuous monitoring of seismicity in the mining area (Gibowicz and Kijko 1994;Gibowicz and Lasocki 2001;Mendecki and Sciocatti 1997). This comprises detection of seismic events followed by location of hypocenters, energy and seismic moment estimation, and, possibly further, more advanced analysis.…”

Section: Introductionmentioning

confidence: 99%

“…Another factor, the velocity spatial distribution, is subject to many simplifications and is usually very poorly known (Lomax et al 2000). Moreover, in a mining environment, the velocity also changes with time due to the dynamic response of the rock mass to excavation, and the changes can reach up to 10-20 % of the background velocity (Gibowicz and Lasocki 2001). As a consequence, the velocity distribution is usually poorly known and actually is the most significant factor limiting location accuracy (Lomax et al 2000;Husen et al 1999;Debski et al 1997).…”

Section: Introductionmentioning

confidence: 99%

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Extending the double difference location technique—improving hypocenter depth determination

Rudziński

Dębski

2012

J Seismol

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Locating the seismic event hypocenter is the very first issue undertaken when studying any seismological problem. Thus, the accuracy of the obtained solution can significantly influence consecutive stages of an analysis, so there is a continuous demand for new, more efficient, and accurate location algorithms. It is well recognized that there exists no single universal location algorithm which performs equally well in all situations. Seismic activity and its spatial variability over time, seismic network geometry, and the controlled area's geological complexity are factors influencing the performance of location algorithms. For example, in the case of mining applications, the planarity of the seismic network usually operated at the exploitation level becomes an important issue limiting the accuracy of location of the hypocenter depths. In this paper, we push forward the discussion on the performance of the newly proposed location algorithm called the extended double difference (EDD), concentrating on the reliability of source depth estimation for L. Rudziński (B) · W. Dȩbski Institute of Geophysics Polish Academy of Sciences, ul. Ks. Janusza 64, 01-452 Warsaw, Poland e-mail: rudzin@igf.edu.pl W. Dȩbski e-mail: debski@igf.edu.pl mining-induced seismic events. We demonstrate that the EDD algorithm very efficiently uses information originating from the nonplanarity of the seismic network, improving the hypocenter depth estimates with respect to the classical double difference technique. Methodological considerations are illustrated by real data analysis of selected events from the Rudna copper mine (Poland).

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Physical mechanisms for vertical‐CLVD earthquakes at active volcanoes

2013

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[1] Many volcanic earthquakes large enough to be detected globally have anomalous focal mechanisms and frequency content. In a previous study, we examined the relationship between active volcanism and the occurrence of a specific type of shallow, non-double-couple earthquake. We identified 101 earthquakes with vertical compensated-linear-vector-dipole (vertical-CLVD) focal mechanisms that took place near active volcanoes between 1976 and 2009. The majority of these earthquakes, which have magnitudes 4.3 ≤ M W ≤ 5.8, are associated with documented episodes of volcanic unrest. Here we further characterize vertical-CLVD earthquakes and explore possible physical mechanisms. Through teleseismic body-wave analysis and examination of the frequency content of vertical-CLVD earthquakes, we demonstrate that these events have longer source durations than tectonic earthquakes of similar magnitude. We examine the covariance matrix for one of the best-recorded earthquakes and confirm that the isotropic and pure vertical-CLVD components of the moment tensor cannot be independently resolved using our long-period seismic data set. Allowing for this trade-off, we evaluate several physical mechanisms that may produce earthquakes with deviatoric vertical-CLVD moment tensors. We find that physical mechanisms related to fluid flow and volumetric changes are incompatible with seismological, geological, and geodetic observations of vertical-CLVD earthquakes. However, ring-faulting mechanisms explain many characteristics of vertical-CLVD earthquakes, including their seismic radiation patterns, source durations, association with volcanoes in specific geodynamic environments, and the timing of the earthquakes relative to volcanic activity.

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Seismicity induced by mining: Ten years later

Cited by 93 publications

References 150 publications

Time-dependent seismic hazard in Bobrek coal mine, Poland, assuming different magnitude distribution estimations

Time-dependent seismic hazard in Bobrek coal mine, Poland, assuming different magnitude distribution estimations

Extending the double difference location technique—improving hypocenter depth determination

Physical mechanisms for vertical‐CLVD earthquakes at active volcanoes

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