Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8141623 | NRIAG Journal of Astronomy and Geophysics | 2018 | 6 Pages |
Abstract
Using the IAP experiment on board, the DEMETER and TEC from GPS data, unusual ionospheric variations have been observed some days before the 7.4 magnitude New Zealand earthquake. Both sets of data recorded perturbations 10â¯days before the earthquake at about the same time. The total ion density per centimeter cube (cmâ3), recorded a variation of 6.94 while the differential total electron content (DTEC) in total electron content unit 1016 electron per metre square gave a value of 2.93TECU. The observed anomalies were screened for false alarm using the geomagnetic indices of Kernnifzer digit (Kp) and disturbance storm time (Dst.) It was however seen that the state of the ionosphere was geomagnetically quiet during this period; hence the observed variations were seismogenic.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
J.I. Ibanga, A.E. Akpan, N.J. George, A.M. Ekanem, A.M. George,