Nonextensivity in Geological Faults?
G. S. França, C. S. Vilar, R. Silva, J. S. Alcaniz
Abstract
Geological fault systems, as the San Andreas fault (SAF) in USA, constitute typical examples of self-organizing systems in nature. In this paper, we have considered some geophysical properties of the SAF system to test the viability of the nonextensive models for earthquakes developed in [Phys. Rev. E 73, 026102, 2006]. To this end, we have used 6188 earthquakes events ranging in the magnitude interval 2 < m < 8 that were taken from the Network Earthquake International Center catalogs (NEIC, 2004-2006) and the Bulletin of the International Seismological Centre (ISC, 1964-2003). For values of the Tsallis nonextensive parameter q 1.68, it is shown that the energy distribution function deduced in above reference provides an excellent fit to the NEIC and ISC SAF data.
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