Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 36, issue 5
Articles | Volume 36, issue 5
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:
https://doi.org/10.5194/angeo-36-1483-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 5
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, Mirko Piersanti, Maurizio Candidi, Piero Diego, and Pietro Ubertini

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Short summary
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.
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Dynamics and interaction of processes in the Earth and its...