1996 | OriginalPaper | Buchkapitel
Space-time Interaction Amongst Clusters of Mining Induced Seismicity
verfasst von : A. Kijko, C. W. Funk
Erschienen in: Induced Seismic Events
Verlag: Birkhäuser Basel
Enthalten in: Professional Book Archive
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Elementary cluster analysis of induced seismicity in a South African gold mine has shown that there is a clear interaction amongst the clusters: and that the level of the interaction is a function of the distance. The clustering algorithm used is an adaptation of the single-link cluster analysis which considers both three-dimensional space and time. A high level of interaction between the clusters is demonstrated from the cross-correlation analysis of seismic activity rates and radiated energy A distinct decrease in the value of correlation coefficients was detectable as distance increased. This was somewhat surprising, considering the simplicity of the technique used. Since no attempt is made to study the physical mechanisms of interaction, these results are very preliminary, but interesting from an observational point of view.