Ionospheric induced plasma disturbances afore the m7.9 eastern Sichuan china earthquake of 12th may, 2008

  • Authors

    • Jewel E. Thomas Akwa Ibom State University, Nigeria
    • Nyakno J. George Akwa Ibom State University, Nigeria
    • Aniekan M. Ekanem Akwa Ibom State University,Nigeria
    • Nsikak E. Ekpenyong Akwa Ibom State University,Nigeria
    2019-12-15
    https://doi.org/10.14419/ijag.v7i2.29980
  • Ionosphere, DEMETER, GPS, Anomalies, Precursors.

  • Abstract

    A great number of earthquakes occur yearly in different areas and almost 100 -120 of them have a magnitude above 5. These seismic activities are very harmful for the inhabitants. Findings reveal that this seismo-electro-magnetic abnormality is a mirror image of some processes, which originated a few weeks before the main event and stay until few days after it. Plasma ion analyser (IAP) and Instrument Sonde de Langmuir (ISL) sensors) experiments available on Detection of Electromagnetic Emissions Transmitted from Earthquake Regions (DEMETER) and Total Electron Content (TEC) from Global Positioning System (GPS) satellites, were employed to study the variations of electron and ion density for ionospheric disturbances before the M7.9 Eastern Sichuan China earthquake of 12th May, 2008. The study revealed seismo-ionospheric induced perturbations exactly three weeks afore the earthquake in all four investigated parameters. Electron density recorded 16.94 cm-3, electron temperature revealed - 2.25 o C while total ion density displayed 6.57 cm-1. The total electron content ranged from 4.28 to 3.6. The disturbance storm time (Dst) and planetary 3-hourly range (Kp) indices were used to classify pre-earthquake anomalies from the other anomalies associated with geomagnetic activities and was seen that this day (-21days relative to the earthquake) was devoid of geomagnetic storm, thus the observed perturbations were seismo-induced but not geomagnetic induced.

     

     

     


  • References

    1. [1] Akpan, A. E., Ibanga, J. I., George N. J. & A. M. Ekanem (2019): Assessing seismo-ionospheric disturbances using Vanuatu and Honshu earthquakes of March 25, 2007, employing DEMETER and GPS data, International Journal of Science and Technology, 16, 16 (11) 7187–7196, https://doi.org/10.1007/s13762-019-02339-x.

      [2] Akhoondzadeh, M. and Saradjian, M.R. (2011): TEC variations analysis concerning Haiti (January 12, 2010) and Samoa (September 29, 2009) Earthquakes. Advances in Space Research, 47, 94-104. https://doi.org/10.1016/j.asr.2010.07.024.

      [3] Berthelier, J. J., Godefroy, M., Leblanc, F., Seran, E., Peschard, D.,Gilbert, P. and Artru, J. (2006): IAP, the thermal plasma analyzer on DEMETER. Planetary and Space Science, 54, 487–501. https://doi.org/10.1016/j.pss.2005.10.018.

      [4] Biqiang Zhao, Min Wang, Tao Yu, Weixing Wan, Jiuhou Lei, Libo Liu and Baiqi Ning. (2008): Is an unusual large enhancement of ionospheric electron density linked with the 2008 great Wenchuan earthquake? Journal of Geophysical Research, vol. 113, A11304. https://doi.org/10.1029/2008JA013613.

      [5] Brien, M. O. and Cornely, P. R. (2015): Analyzing Anomalies in the Ionosphere above Haiti Surrounding the 2010 Earthquake. Journal of Young Investigators, 29(5), 36 – 40.

      [6] Calais, E. and Minster, J. B. (1995): GPS detection of ionospheric perturbations following the January 17, 1994, Northridge earthquake. Geophysical Research Letters, 22, 1045–1048. https://doi.org/10.1029/95GL00168.

      [7] Chmyrev, V., Smith, A., Kataria, D., Nestor, B. and Owen, C. (2013): Detection and monitoring of earthquake precursor. Twinsat, A Russia – UK satellite project. Advances in Space Research, 52 (6), 1135 – 1145. Akpan , A. E., Ibanga, J. I., George N. J. & A. M. Ekanem Assessing seismo-ionospheric disturbances using Vanuatu and Honshu earthquakes of March 25, 2007, employing DEMETER and GPS data, International Journal of Science and Technology, 16, 16 (11) 7187–7196, https://doi.org/10.1007/s13762-019-02339-x.

      [8] Cussac, T., Clair,M., Ultre´-Guerard, P., Buisson, F., Lassalle-Balier, G., Ledu, M., Elisabelar, C., Passot, X. and Rey, N. (2006): The Demeter microsatellite and ground segment. Planetary and Space Science, 54, 413–427. https://doi.org/10.1016/j.pss.2005.10.013.

      [9] Dobrovolsky, I. R., Zubkov, S. I. and Myachkin, V. I. (1979): Estimation of the size of earthquake preparation zones. Pure Applied Geophysics, 117, 1025–1044. https://doi.org/10.1029/2008JA013613.

      [10] Hayakawa, M. (2016): Earthquake Prediction with Radio Techniques. Google Books Results 265. https://doi.org/10.1002/9781118770368.

      [11] Ibanga, J. I., Akpan, A. E, George N. J., Ekanem, A.M. and George, A.M. ((2017), Unusual ionospheric variations before the strong Auckland Islands, New Zealand earthquake of 30th September 2007. NRIAG Journal of Astronomy and Geophysics https://doi.org/10.1016/j.nrjag.2017.12.007.

      [12] Kintner, P. M., Coster, A. J., and Rowell, T. F., Mannucci, A.J., Mendillo, M. and Heelis, R. (2013): Mid latitude Ionospheric Dynamics and Disturbances. America: American Geophysical Union.

      [13] Klimenko, M., Klimenko, V., Zakharenkova, I., Pulinets, S., Zhao, B., and Tsidilina, M. (2011), Formation mechanism of great positive TEC disturbances prior to Wenchuan earthquake on May 12, 2008, Adv. Space Res., 48, 488–499. https://doi.org/10.1016/j.asr.2011.03.040.

      [14] Mayaud, P. N. (1980): Derivation, Meaning and use of geomagnetic indices, Geophysical Monograph 22, American Geological Union, Washington DC. https://doi.org/10.1029/GM022.

      [15] Ondoh, T. (2008): Investigation of precursory phenomena in the ionosphere, atmosphere and groundwater before large earthquakes of M >6.5. Advance Space Research, 43, 214–223. https://doi.org/10.1016/j.asr.2008.04.003.

      [16] Oraevsky V. N., Ruzhin Yu. Ya. Depueva A. Kh (1995). Anomalous global plasma structures as seismo ionospheric precursors // Adv. Space Res. V. 15. No. 11. P. (11)127– (11) 130. https://doi.org/10.1016/0273-1177(95)00084-R.

      [17] Oreskes N ed. (2003) Plate Tectonics, Perseus Publishing, 424

      [18] Parrot, M. (2012): Statistical analysis of automatically detected ion density variations recorded by DEMETER and their relation to seismic activity. Annals of Geophysics.55 (1), 149-155.

      [19] Pulinets, S. A. and Boyarchuk, K. A. (2004): Ionospheric Precursors of Earthquakes. Berlin:Springer, Verlag Publishers. Germany.

      [20] Pulinets, S. A., Legen, A. D., Gaivoronskaya, T. V., and Depuev, V.K. (2003): Main phenomenological features of ionospheric precursors of strong earthquakes, Journal of Atmospheric Solar and Terrestrial Physics, 65, 1337–1347. https://doi.org/10.1016/j.jastp.2003.07.011.

      [21] Ruzhin, Yu.Ya. and Depueva, A.Kh. (1996), Seismo-precursors in space as plasma and wave anomalies, Journal of Atmospheric Electricity, vol. 16, no. 3, pp. 271-288.

      [22] Sunil, A. S., Bagiya, M. S., Reddy, C. D., Kumar, M. and Durbha Sai Ramesh, D. S. (2015): Post-seismic ionospheric response to the 11 April 2012 East Indian Ocean doublet earthquake. Earth, Planets and Space, 67: 37. https://doi.org/10.1186/s40623-015-0200-8.

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  • How to Cite

    E. Thomas, J., J. George, N., M. Ekanem, A., & E. Ekpenyong, N. (2019). Ionospheric induced plasma disturbances afore the m7.9 eastern Sichuan china earthquake of 12th may, 2008. International Journal of Advanced Geosciences, 7(2), 194-197. https://doi.org/10.14419/ijag.v7i2.29980

    Received date: 2019-10-16

    Accepted date: 2019-11-30

    Published date: 2019-12-15