Geomagnetism and Aeronomy

, Volume 50, Issue 2, pp 231–242 | Cite as

Verification of the concept of seismoionospheric coupling under quiet heliogeomagnetic conditions, using the Wenchuan (China) earthquake of May 12, 2008, as an example

  • S. A. Pulinets
  • V. G. Bondur
  • M. N. Tsidilina
  • M. V. Gaponova


The variability of the ionosphere during April–May, 2008, has been analyzed in detail in order to reveal anomalous variations related to seismic activity, initiated by the strongest Wenchuan earthquake (M = 7.9) in the Sichuan province on May 12, 2008. Information about the total electron content (TEC) from the network of GPS receivers in the earthquake region, the global IONEX TEC maps, and the reconstructed vertical profiles of electron density according to the data of GPS receivers were used as a data source. The spatial and time localization of the observed anomalies, their morphological features, and the absence of geomagnetic disturbances during the observation period undoubtedly demonstrate that the observed variations were caused by seismic activity.


Total Electron Content Main Shock Longmenshan Fault Geomagnetic Equator Total Electron Content Variation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. E. L. Afraimovich and E. I. Astafyeva, “TEC Anomalies — Local TEC Changes Prior to Earthquakes or TEC Response to Solar and Geomagnetic Activity Changes?,” Earth Planet. Space 60, 961–966 (2008).Google Scholar
  2. V. G. Bondur and V. M. Smirnov, “A Method of Earthquake Forecast Based on the Lineament Analysis of Satellite Images,” Dokl. Akad. Nauk 402(5), 675–679 (2005) [Dokl. Earth Sci. 402 (4), 561–568 (2005)].Google Scholar
  3. J. Bošková, J. Šmilauer, F. Jiříček, and P. Tříska, “Is the Ion Composition of Outer Ionosphere Related to Seismic Activity,” J. Atmos. Terr. Phys. 55, 1689–1695 (1993).CrossRefGoogle Scholar
  4. Y. J. Chuo, Y. I. Chen, J. Y. Liu, and S. A. Pulinets, “Ionospheric foF2 Variations Prior to Strong Earthquakes in Taiwan Area,” Adv. Space Res. 27, 1305–1310 (2001).CrossRefGoogle Scholar
  5. L. Ciraolo and P. Spalla, “Comparison of Ionospheric Total Electron Content from the Navy Navigation Satellite System and the GPS,” Radio Sci. 32, 1071–1080 (1997).CrossRefGoogle Scholar
  6. I. P. Dobrovl’skii, Theory of Tectonic Earthquake Preparation (Inst. Fiz. Zemli Akad. Nauk SSSR., Moscow, 1991) [in Russian].Google Scholar
  7. M. V. Klimenko, V. V. Klimenko, and V. V. Bruykhanov, “Numerical Simulation of the Electric Field and Zonal Current in the Earth’s Ionosphere: The Dynamo Field and Equatorial Electrojet,” Geomagn. Aeron. 46(4), 457–466 (2006) [Geomagn. Aeron. 46, 457 (2006)].CrossRefGoogle Scholar
  8. J. Y. Liu, Y. I. Chen, S. A. Pulinets, et al., “Seismo-Ionospheric Signatures Prior to M ≥ 6 Taiwan Earthquakes,” Geophys. Res. Lett. 27, 3113–3116 (2000).CrossRefGoogle Scholar
  9. J. Y. Liu, Y. I. Chen, Y. J. Chuo, and C. S. Chen, “A Statistical Investigation of Preearthquake Ionospheric Anomaly,” J. Geophys. Res. 111, A05304 (2006).CrossRefGoogle Scholar
  10. J. Y. Liu, Y. J. Chuo, S. J. Shan, et al., “Pre-Earthquake Ionospheric Anomalies Registered by Continuous GPS TEC Measurements,” Ann. Geophys. 22, 1585–1593 (2004).Google Scholar
  11. M. Mendillo, C.-L. Huang, X. Pi, H. Rishbeth, and R. Meier, “The Global Ionospheric Asymmetry in Total Electron Content,” J. Atmos. Solar-Terr. Phys. 67, 1377–1387 (2005).CrossRefGoogle Scholar
  12. A. A. Namgaladze, M. V. Klimenko, V. V. Klimenko, and I. E. Zakharenkova, “Physical Mechanism and Mathematical Modeling of Earthquake Ionospheric Precursors Registered in Total Electron Content,” Geomagn. Aeron. 49(2), 267–277 (2009) [Geomagn. Aeron. 49, 252–262 (2009)].CrossRefGoogle Scholar
  13. S. A. Pulinets and A. D. Legen’ka, “Dynamics of the Near-Equatorial Ionosphere Prior to Strong Earthquakes,” Geomagn. Aeron. 42(2) (2002) [Geomagn. Aeron. 42, 227–232 (2002)].Google Scholar
  14. S. A. Pulinets and A. D. Legen’ka, “Spatial-Time Characteristics of Large-Scale Electron Density Inhomogeneities, Observed in the Ionospheric F Region before Strong Earthquakes,” Kosm. Issled. 41(3), 221–229 (2003).Google Scholar
  15. S. A. Pulinets and K. A. Boyarchuk, Ionospheric Precursors of Earthquakes (Springer, Berlin, 2004).Google Scholar
  16. S. A. Pulinets, “Lithosphere-Atmosphere-Ionosphere Coupling (LAIC) Model,” in Electromagnetic Phenomena Associated with Earthquakes, Research Signpost, Japan, Chapter 9, 235–253 (2009a).Google Scholar
  17. S. A. Pulinets, “Physical Mechanism of the Vertical Electric Field Generation over Active Tectonic Faults,” Adv. Space Res. 44, 767–773 (2009b).CrossRefGoogle Scholar
  18. S. A. Pulinets, “Seismic Activity as a Source of the Ionospheric Variability,” Adv. Space Res. 22, 903–906 (1998).CrossRefGoogle Scholar
  19. S. A. Pulinets, A. D. Legen’ka, T. V. Gaivoronskaya, and V. K. Depuev, “Main Phenomenological Features of Ionospheric Precursors of Strong Earthquakes,” J. Atmos.-Solar Terr. Phys. 65, 1337–1347 (2003).CrossRefGoogle Scholar
  20. S. A. Pulinets, A. D. Legen’ka, and T. I. Zelenova, “Local-Time Dependence of Seismo-Ionospheric Variations at the F-Layer Maximum,” Geomagn. Aeron. 38(3), 188–193 (1998b) [Geomagn. Aeron. 38, 400–402 (1998b)].Google Scholar
  21. S. A. Pulinets, K. A. Boyarchuk, A. M. Lomonosov, et al., “Ionospheric Precursors to Earthquakes: A Preliminary Analysis of the foF2 Critical Frequencies at Chung-Li Ground-Based Station for Vertical Sounding of the Ionosphere (Taiwan),” Geomagn. Aeron. 42(4), (2002) [Geomagn. Aeron. 42, 508–513 (2002)].Google Scholar
  22. S. A. Pulinets, P. Biagi, V. Tramutoli, A. D. Legen’ka, and V. Kh. Depuev, “Irpinia Earthquake 23 November 1980 — Lesson from Nature Revealed by Joint Data Analysis,” Annals of Geophysics 50, 61–78 (2007).Google Scholar
  23. S. A. Pulinets, V. V. Khegai, K. A. Boyarchuk, and A. M. Lomonosov, “Atmospheric Electric Field as a Source of Ionospheric Variability,” Usp. Fiz. Nauk 41(5), 582–589 (1998a) [Physics-Uspekhi 41, 515–522 (1998a)].CrossRefGoogle Scholar
  24. I. E. Zakharenkova, A. Krankowski, and I. I. Shagimuratov, “Modification of the Low-Latitude Ionosphere before the 26 December 2004 Indonesian Earthquake,” Nat. Hazard Earth Syst. Sci. 6, 817–823 (2006).CrossRefGoogle Scholar

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© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • S. A. Pulinets
    • 1
    • 2
  • V. G. Bondur
    • 1
  • M. N. Tsidilina
    • 1
  • M. V. Gaponova
    • 1
  1. 1.“Aerocosmos” Scientific Center for Aerospace MonitoringMoscowRussia
  2. 2.Fiodorov Institute of Applied GeophysicsRoshydromet, MoscowRussia

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