Ionospheric disturbances during a strong earthquake (M=5.5) event

Wednesday, 17 December 2014
Malini Aggarwal1, Ananna Bardhan2 and D. K. Sharma2, (1)Indian Institute of Geomagnetism, Mumbai, India, (2)Department of Physics, Manav Rachna College of Engineering, Faridabad, India
The recent studies of lithosphere-ionosphere coupling shows the co-seismic disturbances produced in the earth's ionosphere. Several recent reports have shown examples from different regions of the world of possible electromagnetic changes during earthquakes. Here we present the observations of the investigated disturbances produced in the ionospheric behaviour during an earthquake event of magnitude=5.5 which occurred in the Indian region as also listed on the USGS website. For this study, we examined the changes in the various ionospheric parameters like total electron content (TEC), NmF2, electron/ion densities using various satellites like GPS, COSMIC, CHAMP, DEMETER as well as ground based measurements. The result indicates changes in these parameters from the quite time behaviour. The preliminary results would be presented and discussed.