Volume 109, Number 4, February 2015
|Number of page(s)||4|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||24 February 2015|
Analysis of four Brazilian seismic areas using a nonextensive approach
1 Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq - SHIS QI 01, Conj. B, Bl. A-D, Edifício Santos Dumont, Lago Sul, 71.605-001, Brasília, DF, Brazil
2 Observatório Sismológico-IG/UnB, Campus Universitário Darcy Ribeiro - SG 13 Asa Norte, 70.910-900 Brasília, DF, Brazil
3 Departamento de Física, Universidade Federal do Rio Grande do Norte - 59072-970 Natal, RN, Brazil
4 Instituto de Física, Universidade Federal da Bahia, Campus Universitário de Ondina 40210-340 Salvador, BA, Brazil
Received: 21 November 2014
Accepted: 2 February 2015
We analyse four seismic areas in Brazil using a nonextensive model and the data from the Brazilian Seismic Bulletin between 1720 and 2013. Two of those regions are contrasting zones, while the other two are dominated by seismic active faults. We notice that intraplate seismic zones present q-values similar to others fault zones, but the adjustment in contrast areas results in higher values for this parameter. The results reveal the nonextensive approach adjusts robustly also in case of intraplate earthquakes, showing that the Tsallis formalism is unquestionably a powerful tool to the analysis of this phenomenon.
PACS: 91.30.Px – Earthquakes / 05.90.+m – Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems (restricted to new topics in section 05)
© EPLA, 2015
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