Studies of short and long memory in mining-induced seismic processes

Weglarczyk, Stanislaw and Lasocki, Stanislaw (2009) Studies of short and long memory in mining-induced seismic processes. Acta Geophysica, 57 (3). DOI: https://doi.org/10.2478/s11600-009-0021-x

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Official URL: http://dx.doi.org/10.2478/s11600-009-0021-x

Abstract

Memory of a stochastic process implies its predictability, understood as a possibility to gain information on the future above the random guess level. Here we search for memory in the mining-induced seismic process (MIS), that is, a process induced or triggered by mining operations. Long memory is investigated by means of the Hurst rescaled range analysis, and the autocorrelation function estimate is used to test for short memory. Both methods are complemented with result uncertainty analyses based on different resampling techniques. The analyzed data comprise event series from Rudna copper mine in Poland. The studies show that the interevent time and interevent distance processes have both long and short memory. MIS occurrences and locations are internally interrelated. Internal relations among the sizes of MIS events are apparently weaker than those of other two studied parameterizations and are limited to long term interactions.

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Item Type: Article
Uncontrolled Keywords: process memory, induced seismicity, rescaled range, autocorrelation
Subjects: Methodology > Method and procesing > Collective properties of seismicity > Stationarity testing
Region > Poland > Legnica-Glogow Copper District
Inducing technology > Underground mining
Project: IS-EPOS project > LGCD: Regional seismicity and ground motion associating underground hard rock mining