Comments on the entropy of seismic electric signals under time reversal

P. A Varotsos; N. V. Sarlis; E. S. Skordas; M. S. Lazaridou

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Comments on the entropy of seismic electric signals under time reversal

P. A Varotsos·N. V. Sarlis·E. S. Skordas·M. S. Lazaridou

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Abstract

We present recent data of electric signals detected at the Earth's surface, which confirm the earlier finding [Phys. Rev. E 73, 031114 (2006)] that the value of the entropy in natural time as well as its value under time reversal are smaller than that of the entropy of a ``uniform'' distribution. Furthermore, we show that the scale dependence of the fluctuations of the natural time itself under time reversal provides a useful tool for the discrimination of seismic electric signals (critical dynamics) from noises emitted from manmade sources as well as for the determination of the scaling exponent.

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P. A Varotsos, N. V. Sarlis, E. S. Skordas, M. S. Lazaridou. 2006-11-16. Comments on the entropy of seismic electric signals under time reversal. https://arxiv.org/abs/cond-mat/0611437

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