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Seismo-ionosphere detection by underground SQUID in low-noise environment in LSBB-Rustrel, France

Published online by Cambridge University Press:  17 February 2009

G. Waysand ,
P. Barroy ,
R. Blancon ,
S. Gaffet ,
C. Guilpin ,
J. Marfaing ,
E. Pozzo Di Borgo ,
M. Pyée ,
M. Auguste  and
D. Boyer
...Show all authors
G. Waysand*
Affiliation:
Université de Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, Laboratoire Souterrain Bas Bruit de Rustrel-Pays d'Apt (LSBB), La Grande Combe, 84400 Rustrel, France
P. Barroy
Affiliation:
Université Paris XIII, LPMTM, Institut Galilée, 93430 Villetaneuse, France
R. Blancon
Affiliation:
Université d'Avignon et des Pays de Vaucluse, Département de Physique, Rue Louis Pasteur, 84000 Avignon, France
S. Gaffet
Affiliation:
Université de Nice Sophia-Antipolis, GéoSciences-Azur, 250 rue Albert Einstein, 06500 Sophia-Antipolis, France
C. Guilpin
Affiliation:
Université Paris7-Denis Diderot, 2 Place Jussieu, 75005 Paris, France
J. Marfaing
Affiliation:
Université Aix-Marseille IM2NP, UMR 6242 CNRS, Faculté des Sciences et Techniques, Avenue Normandie Niemen, 13397 Marseille Cedex 20, France
E. Pozzo Di Borgo
Affiliation:
Université d'Avignon et des Pays de Vaucluse, Département de Physique, Rue Louis Pasteur, 84000 Avignon, France
M. Pyée
Affiliation:
Université d'Orléans, LPCE CNRS, 3A av. de la Recherche Scientifique, 45071 Orléans, France
M. Auguste
Affiliation:
Université de Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, Laboratoire Souterrain Bas Bruit de Rustrel-Pays d'Apt (LSBB), La Grande Combe, 84400 Rustrel, France
D. Boyer
Affiliation:
Université de Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, Laboratoire Souterrain Bas Bruit de Rustrel-Pays d'Apt (LSBB), La Grande Combe, 84400 Rustrel, France
A. Cavaillou
Affiliation:
Université de Nice Sophia-Antipolis, Observatoire de la Côte d'Azur, Laboratoire Souterrain Bas Bruit de Rustrel-Pays d'Apt (LSBB), La Grande Combe, 84400 Rustrel, France
*
georges.waysand@oca.eu
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Abstract

The permanent operation of a 3 axes SQUID magnetometer in the LSBB below 550 m of calcite rock is a unique system of magnetic observation: a rejection rate better than 3 fT/$\surd $Hz over 40 Hz. The observation of magneto-ionosphere responses to P wave emissions both at the epicentre and at their arrival at LSBB for earthquakes of magnitude larger than 3 is reported. A simple model predicts the starting time of these events. These results are compared with those provided by Doppler sounders for ionosphere responses to Rayleigh waves.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 47 , Issue 1: 4th Colloquium Interdisciplinary in Instrumentation (C2I 2007) , July 2009 , 12705
Copyright
© EDP Sciences, 2009

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References

Waysand, G., Bloyet, D., Bongiraud, J.P., Collar, J.I., Dolabdjian, C., Le Tiec, P., Nucl. Instrum. Meth. A 444, 336 (2000) CrossRef
Gaffet, S., Guglielmi, Y., Virieux, J., Waysand, G., Chwala, A., Stolz, R., Emblanch, C., Auguste, M., Boyer, D., Cavaillou, A., Geophys. J. Int. 155, 981 (2003) CrossRef
Lognonné, P., Garcia, R., Crespon, F., Occhipinti, G., Kherani, A., Artru-Lambin, J., Europhys. News 37, 11 (2007) CrossRef