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Pre-seismic Electromagnetic Perturbations in Two Earthquakes in Northern Greece

  • K. Florios
  • I. Contopoulos
  • V. Christofilakis
  • G. Tatsis
  • S. Chronopoulos
  • C. Repapis
  • V. TritakisEmail author
Article

Abstract

Two medium-magnitude earthquakes separated by a distance of 230 km occurred within 34 days from each other in Northern Greece. A few hours before the manifestation of seismic activity, significant extra-low-frequency (ELF) perturbations were detected in a nearby Schumann resonance observation site. The typical spectrum of ELF measurements was deformed with the appearance of an enhanced spectral feature in the frequency range 20–25 Hz. A logit regression model was applied to the data to examine whether ELF perturbations could be considered as precursors of seismic activity. In general, two earthquakes so close to each other (in space, time, and magnitude) form a unique opportunity for the study of characteristic features of pre-seismic ultra-low-frequency (ULF)/ELF perturbations. Quantitative results from a simple nonlinear statistical model support the idea that there is some kind of physical interaction between seismic and atmospheric ELF activities, and that ELF measurements could potentially be used as a useful tool in the forecasting of seismic activity.

Keywords

Schumann resonances earthquakes preseismic signals 

Notes

Acknowledgements

The authors express their gratitude to the Mariolopoulos-Kanaginis Foundation for the Environmental Sciences (grants nos. 119/20.04.2012 and 121/20.04.2016), and to the Empirikion Foundation for their generous support offered for the realization of this project. Warm thanks are also due to Mr. G. Skordos, ex-director of the high school at Doliana town, and the ecclesiastical committee of the same town for providing accommodation for personnel and equipment.

References

  1. Bertello, I., Piersanti, M., Candidi, M., Diego, P., & Ubertini, P. (2018). Electromagnetic field observations by the DEMETER satellite in connection with the 2009 L’Aquilla earthquake. Annales Geophysicae,36, 1483–1493.  https://doi.org/10.5194/angeo-36-1483.CrossRefGoogle Scholar
  2. Breiman, L. (2001). Random forests. In R. Schaphire (Ed.), Machine learning (Vol. 45, pp. 5–32). Dordrecht: Kluwer Academic Publishers.Google Scholar
  3. Greene, W. H. (2003). Econometric analysis (5th ed.). New Jersey: Prentice Hall.Google Scholar
  4. Hayakawa, M., & Molchanov, O. A. (2007). Seismo-electromagnetics as a new field of radiophysics: Electromagnetic phenomena associated with earthquakes. U.R.S.I. Radio Science Bulletin, No. 320, pp. 8–17.Google Scholar
  5. Hayakawa, M., Nickolaenko, A. P., Sekiguchi, M., Yamashita, K., Ida, Y., & Yano, M. (2008). Anomalous ELF phenomena in the Schumann resonance band as observed at Moshiri (Japan) in possible association with an earthquake in Taiwan. Natural Hazards and Earth System Sciences,8, 1309–1316.CrossRefGoogle Scholar
  6. Hayakawa, M., Ohta, K., Nickolaenko, A. P., & Ando, Y. (2005). Anomalous effect in Schumann resonance phenomena observed in Japan, possibly associated with the Chi-chi earthquake in Taiwan. Annales Geophysicae,23, 1335–1346.CrossRefGoogle Scholar
  7. Hayakawa, M., Ohta, K., Sorokin, V. M., Yaschenko, A. K., Izutsu, J., Hobara, Y., et al. (2010). Interpretation in terms of gyrotropic waves of Schumann-resonance-like line emissions observed at Nakatsugawa in possible association with nearby Japanese earthquakes. Journal of Atmospheric and Solar-Terrestrial Physics,72, 1292–1298.CrossRefGoogle Scholar
  8. Nickolaenko, A., & Hayakawa, M. (2002). Resonance in the earth-ionosphere cavity. Dordrecht: Kluwer Academic Publishers.Google Scholar
  9. Nickolaenko, A., & Hayakawa, M. (2014). Localized ionospheric disturbance over the earthquake epicenter and modifications of Schumann resonance electromagnetic fields. Geomatics, Natural Hazards and Risk,5(3), 271–283.CrossRefGoogle Scholar
  10. Nickolaenko, A. P., & Hayakawa, M. (2015). Disturbances of lower ionosphere above the center of earthquake and anomaly in the global electromagnetic resonance signal. Part 2. Anomalies in the power spectra. Telecommunications and Radio Engineering,74(12), 1109–1122.CrossRefGoogle Scholar
  11. Nickolaenko, A. P., Usikov, O. Y., & Hayakawa, M. (2015). Disturbances of lower ionosphere above center of earthquake and anomaly in the global electro-magnetic resonance signal—part 1: Models of ionosphere. Telecommunications and Radio Engineering,74, 1025–1038.CrossRefGoogle Scholar
  12. Petraki, E., Nikolopoulos, D., Nomicos, C., Stonham, J., Cantzos, D., Yannakopoulos, P., et al. (2015). Electromagnetic pre-earthquake precursors: Mechanisms, data and models. Journal of Earth Science & Climatic Change,6, 1.  https://doi.org/10.4172/2157-7617.1000250.CrossRefGoogle Scholar
  13. Piersanti, M., Materassi, M., Cicone, A., Spogli, L., Zhou, H., & Ezquer, R. G. (2018). Adaptive local iterative filtering: A promising technique for the analysis of nonstationary signals. JGR: Space Physics.  https://doi.org/10.1002/2017ja024153.CrossRefGoogle Scholar
  14. Schumann, W. O. (1952). On the free oscillations of a conducting sphere which is surrounded by an air layer and an ionosphere shell. Z. Naturforschaftung,7, 149–154. (in German).CrossRefGoogle Scholar
  15. Sorokin, V. M., & Hayakawa, M. (2008). On the generation of narrow-banded ULF/ELF pulsations in the lower ionospheric conducting layer. Journal of Geophysical Research,113, A066306.  https://doi.org/10.1029/2008JA013094.CrossRefGoogle Scholar
  16. Sorokin, V. M., & Pokhotelov, O. A. (2005). Gyrotropic waves in the mid-latitude ionosphere Low-latitude gyrotropic waves in a finite thickness ionospheric conducting layer. Journal of Atmospheric and Solar-Terrestrial Physics,67, 921–930.CrossRefGoogle Scholar
  17. Tatsis, G., Votis, G., Christofilakis, V., Kostarakis, P., Tritakis, V., & Repapis, C. (2015). A prototype data acquisition and processing system for Schumann resonance measurements. Journal of Atmospheric and Solar-Terrestrial Physics,135, 152–160.CrossRefGoogle Scholar
  18. Tatsis, G., Votis, C., Christofilakis, V., Kostarakis, P., Tritakis, V., Repapis, C., et al. (2016). Preliminary measurements of Schumann’s resonances (SR) in the Greek Area. Journal of Engineering Science and Technology Review,9(4), 61–64.CrossRefGoogle Scholar
  19. Uritsky, V., Smirnova, N., Troyan, V., & Vallianatos, F. (2004). Critical dynamics of fractal fault systems and its role in the generation of pre-seismic electromagnetic emissions. Physics and Chemistry of the Earth, Parts A/B/C,29(4–9), 473–480.CrossRefGoogle Scholar
  20. Vallianatos, F., Triantis, D., Tzanis, A., Anastasiadis, C., & Stavrakas, I. (2004). Electric earthquake precursors: From laboratory results to field observations. Physics and Chemistry of the Earth,29, 339–351.CrossRefGoogle Scholar
  21. Vallianatos, F., & Tzanis, A. (1998). Electric current generation associated with the deformation rate of a solid: Preseismic and coseismic signals. Physics and Chemistry of the Earth,23(9–10), 933–938.CrossRefGoogle Scholar
  22. Vallianatos, F., & Tzanis, A. (1999a). A model for the generation of precursory electric and magnetic fields associated with the deformation rate of the earthquake focus. In M. Hayakawa (Ed.), Seismic atmospheric and ionospheric electromagnetic phenomena associated with earthquakes (pp. 287–305). Tokyo: Terra Publishing Company.Google Scholar
  23. Vallianatos, F., & Tzanis, A. (1999b). On possible scaling laws between electric earthquake precursors (EEP) and earthquake magnitude. Geophysical Research Letters,26(13), 2013–2016.CrossRefGoogle Scholar
  24. Vallianatos, F., & Tzanis, A. (2003). On the nature, scaling and spectral properties of pre-seismic ULF signals. Natural Hazards and Earth System Sciences,3, 237–242.CrossRefGoogle Scholar
  25. Venegas-Aravena, P., Cordaro, E., & Laroze, D. (2019). A review and upgrade of the lithospheric dynamics in context of the seismo-electromagnetic theory. Natural Hazards and Earth Systems Sciences,19, 1639–1651.  https://doi.org/10.5194/nhess-19-1639-2019.CrossRefGoogle Scholar
  26. Votis, C., Tatsis, G., Christofilakis, V., Chronopoulos, S., Kostarakis, P., Tritakis, V. C., et al. (2018). A new portable ELF Schumann resonance receiver: Design and detailed analysis of the antenna and the analog front-end. EURASIP Journal on Wireless Communications and Networking.  https://doi.org/10.1186/s13638-018-1157-7.CrossRefGoogle Scholar
  27. Xinyang, O., Xuemin, Z., Nickolaenko, A. P., Hayakawa, M., Xuhui, S., & Yuanqin, M. (2013). Schumann resonance observation in China and anomalous disturbance possibly associated with Tohoku M9.0 earthquake. Earth Sciences,26(2), 137–145.Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Research Center for Astronomy and Applied MathematicsAcademy of AthensAthensGreece
  2. 2.Mariolopoulos-Kanaginis Foundation for the Environmental SciencesAthensGreece
  3. 3.Department of MathematicsUniversity of AthensAthensGreece
  4. 4.Electronics-Telecommunications and Applications Lab, Physics DepartmentUniversity of IoanninaIoanninaGreece

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