Volume 85, Number 3, February 2009
Article Number 39001
Number of page(s) 6
Section Geophysics, Astronomy and Astrophysics
Published online 02 February 2009
EPL, 85 (2009) 39001
DOI: 10.1209/0295-5075/85/39001

Scaling dynamics of seismic activity fluctuations

A. S. Balankin1, D. Morales Matamoros2, J. Patiño Ortiz1, M. Patiño Ortiz1, E. Pineda León1 and D. Samayoa Ochoa1

1   Grupo Mecánica Fractal, Instituto Politécnico Nacional - México D.F., Mexico
2   Instituto Mexicano de Petróleo, Eje Lázaro Cárdenas Norte - México D.F., Mexico

received 17 November 2008; accepted in final form 7 January 2009; published February 2009
published online 2 February 2009

We study the dynamics of the seismic activity in Mexico within a framework of dynamic scaling approach to time series fluctuations, recently suggested by Balankin (Phys. Rev. E, 76 (2007) 056120). We found that the relative seismic activity and the long-sampled fluctuations of seismic activity both display a self-affine invariance within a wide range of consecutive seismic evens. Furthermore, we found that the long-sampled fluctuations of seismic activity obey the dynamic scaling ansatz analogous to the Family-Vicsek dynamic scaling ansatz in the theory of kinetic roughening of moving interfaces. These findings imply that the records of recurrent seismic events possess hidden, long-term correlations associated with the scaling dynamics of seismic activity fluctuations.

91.30.Ab - Theory and modeling, computational seismology.
89.75.Da - Systems obeying scaling laws.
95.75.Wx - Time series analysis, time variability.

© EPLA 2009