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ANGEO | Articles | Volume 36, issue 5
Ann. Geophys., 36, 1483–1493, 2018
https://doi.org/10.5194/angeo-36-1483-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Dynamics and interaction of processes in the Earth and its...

Ann. Geophys., 36, 1483–1493, 2018
https://doi.org/10.5194/angeo-36-1483-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 29 Oct 2018

Regular paper | 29 Oct 2018

Electromagnetic field observations by the DEMETER satellite in connection with the 2009 L'Aquila earthquake

Igor Bertello et al.
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Akasofu, S. I.: Auroral substorms: search for processes causing the expansion phase in terms of the electric current approach, Space Sci. Rev., 212, 1–41, https://doi.org/10.1007/s11214-017-0363-7, 2017. 
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Barr, R., Llanwyn Jones, D., and Rodger, C. J.: ELF and VLF radio waves, J. Atmos. Sol.-Terr. Phy., 62, 1689–1718, https://doi.org/10.1016/S1364-6826(00)00121-8, 2000. 
Bell, P. M.: High electrical conductivity in upper mantle, EOS, 63, 769–769, https://doi.org/10.1029/EO063i036p00769-01, 1982. 
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This paper presents a completely new method based on a new data analysis technique (ALIF) to determine both the environmental and instrumental backgrounds applied to all the DEMETER satellite electric and magnetic field data over L'Aquila's seismic region. Interestingly, on 4 April 2009, when DEMETER flew exactly over L'Aquila at 20:29 UT, an anomalous signal was observed at 333 Hz on both the electric and magnetic field data, whose characteristics seem to be related to pre-seismic activity.
This paper presents a completely new method based on a new data analysis technique (ALIF) to...
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