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| Identifying the occurrence time of an impending mainshock: a very recent case |
| Panayiotis A Varotsos, Nicholas V Sarlis, Efthimios S Skordas, Stavros-Richard G Christopoulos, Mary S Lazaridou-Varotsos |
| Department of Solid State Physics and Solid Earth Physics Institute, Faculty of Physics, School of Science, National and Kapodistrian University of Athens, Panepistimiopolis, Zografos, 157 84 Athens, Greece |
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Abstract The procedure by means of which the occurrence time of an impending mainshock can be identified by analyzing in natural time the seismicity in the candidate area subsequent to the recording of a precursory seismic electric signals (SES) activity is reviewed. Here, we report the application of this procedure to an MW 5.4 mainshock that occurred in Greece on 17 November 2014. This mainshock (which is pretty rare since it is the strongest in that area for more than half a century) was preceded by an SES activity recorded on 27 July 2014, and the results of the natural time analysis reveal that the system approached the critical point (mainshock occurrence) early in the morning on 15 November 2014.
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Yongge Wan, Zheng-kang Shen, Min Wang, Yuehua Zeng, Jichao Huang, Xiang Li, Huawei Cui, Xiwei Gao. Co-seismic fault geometry and slip distribution of the 26 December 2004, giant Sumatra–Andaman earthquake constrained by GPS, coral reef, and remote sensing data[J]. Earthquake Science, 2015, 28(3): 187-195. |
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