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Ionospheric Plasma Variations Afore The East Of Kuril Islands Earthquake Of 13th January, 2007

Author

Listed:
  • Thomas, J. E

    (Geophysics Research Group, Department of Physics, Akwa Ibom State University, Nigeria)

  • George, N. J

    (Geophysics Research Group, Department of Physics, Akwa Ibom State University, Nigeria)

  • Ekanem, A. M

    (Geophysics Research Group, Department of Physics, Akwa Ibom State University, Nigeria)

  • Akpan, A. E

    (Department of Physics, Geophysics Programme, University of Calabar, Cross River State, Nigeria)

Abstract

Plasma Analyzer (IAP) and Langmuir Probe (ISL) experiments of the DEMETER microsatellite were used to check the state of the ionosphere in the region of the M8.1 East of Kuril Islands earthquake of 13th January, 2007,30 days afore and 10 days after the event using statistical approach. The study strongly revealed that all three investigated ionospheric parameters of electron density, total ion density and electron temperature displayed unfamiliar ionospheric variations eight days before the earthquake in the daytime time half orbit measurement. To this, the electron density, total ion density and electron temperature recorded a variation of 4.09, 5.73 and -2.03 respectively. These irregularities were vetted for untrue signals using the geomagnetic indices of Kp and Dst. It was however realized that the state of the ionosphere was geomagnetically quiet during this day, hence the observed variations were seismogenic.

Suggested Citation

  • Thomas, J. E & George, N. J & Ekanem, A. M & Akpan, A. E, 2020. "Ionospheric Plasma Variations Afore The East Of Kuril Islands Earthquake Of 13th January, 2007," Geological Behavior (GBR), Zibeline International Publishing, vol. 4(1), pages 42-46, August.
    • Handle: RePEc:zib:zbngbr:v:4:y:2020:i:1:p:42-46
    DOI: 10.26480/gbr.01.2020.42.46
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