Seismo-ionosphere detection by underground SQUID in low-noise environment in LSBB-Rustrel, France
Résumé
The permanent operation of a 3 axes magnetometer in the LSBB below 550 m of calcite rock is a unique system of magnetic observation: a rejection rate better than 3 fT/Hz over 40 Hz. The observation of magneto-ionosphere responses to 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.
Domaines
Géophysique [physics.geo-ph]| Origine | Fichiers produits par l'(les) auteur(s) |
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