Hydraulic fracturing assessment on seismic hazard by Tsallis statistics

Erick Barra, Pedro Vega-Jorquera (), Sérgio Luiz E. F. Silva and Héctor Torres
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Erick Barra: University of La Serena
Pedro Vega-Jorquera: University of La Serena
Sérgio Luiz E. F. Silva: Politecnico di Torino
Héctor Torres: University of La Serena

The European Physical Journal B: Condensed Matter and Complex Systems, 2022, vol. 95, issue 6, 1-13

Abstract: Abstract Nowadays, because of the intensive use of hydraulic fracturing (HF) in mining, the study of its impact on mining extraction becomes crucial. Here we use the Sotolongo-Costa–Posadas (SCP) model, which is based on Tsallis formalism, to assess the impact of HF on the microearthquakes’ magnitudes and interevent times in a Chilean underground mine. In this regard, we analyse the seismic hazard at regions with HF and HF-free, which is an important issue for workers’ safety and continuity of the mining operations. The results reveal that the HF diminishes the value of the q entropic index associated with the SCP model, which implies that the magnitude and the autocorrelation of the microearthquakes decrease. Graphical Abstract “Hydraulic fracturing assessment on seismic hazard by Tsallis statistics” Erick de la Barra, Pedro Vega-Jorquera, Sérgio Luiz E. F. da Silva and Héctor Torres.

Date: 2022
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DOI: 10.1140/epjb/s10051-022-00361-6

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