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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9551

Authors: Di Maio, R.
Cecere, G.*
De Martino, P.*
Piegari, E.*
Title: Electric effects induced by artificial seismic sources at Somma-Vesuvius volcano
Title of journal: Annals of geophysics
Series/Report no.: 4/56 (2013)
Issue Date: 2013
DOI: 10.4401/ag-6451
URL: http://www.annalsofgeophysics.eu/index.php/annals/article/view/6451
Keywords: Seismo-electric effects; Controlled seismic sources; Self-potential monitoring; Somma-Vesuvius volcano
Abstract: In this paper, we present a series of self-potential measurements at Somma-Vesuvius volcanic area acquired in conjunction with an active seismic tomography survey. The aim of our study is both to provide further confirmation to the occurrence of seismo-electric coupling and to identify sites suitable for self-potential signal monitoring at Somma-Vesuvius district. The data, which were collected along two perpendicular dipoles, show significant changes on the natural electric field pattern. These variations, attributable to electrokinetic processes triggered by the artificial seismic waves, were observed after explosions occurred at a distance less than 5 km from the SP dipole arrays. In particular, we found that the NW-SE component of the natural electric field was more sensible to the shots than the NE-SW one, and the major effects did not correspond to the nearest shots. Such evidences were interpreted considering the underground electrical properties as deduced by previous detailed resistivity and self-potential surveys performed in the study area.
Appears in Collections:04.08.06. Volcano monitoring
Papers Published / Papers in press

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