Volume 128, Number 4, November 2019
|Number of page(s)||7|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||20 January 2020|
Identifying the occurrence time of an impending major earthquake by means of the fluctuations of the entropy change under time reversal
1 Section of Solid State Physics, Physics Department, National and Kapodistrian University of Athens Panepistimiopolis, Zografos 157 84, Athens, Greece, EU
2 Solid Earth Physics Institute, Physics Department, National and Kapodistrian University of Athens Panepistimiopolis, Zografos 157 84, Athens, Greece, EU
Received: 17 September 2019
Accepted: 26 November 2019
In natural time analysis, the complexity measure that quantifies the fluctuations of the entropy change under time reversal plays a key role in identifying when a system approaches a critical point (dynamic phase transition). Here, a new procedure is presented through which this complexity measure can be used for the identification of the occurrence time of a major earthquake. As an example, we apply this procedure to the case of the Tohoku mega-earthquake that occurred on 11 March 2011 in Japan with magnitude 9.0, which is the largest magnitude event recorded in Japan.
PACS: 91.30.Ab – Theory and modeling, computational seismology / 89.75.Da – Systems obeying scaling laws / 95.75.Wx – Time series analysis, time variability
© EPLA, 2020
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