We show the results of the gravimetric and magnetometric surveys of the Island of Panerea and its archipelago. These geophysical surveys belong to a major multiparametric project for the evaluation of the volcanic and seismic hazard of the island. Panarea is considered a volcanic active area as dimostrated by gas eruption of November 2002 ....

Caratori Tontini, F.

Carmisciano, C.

Cocchi, L.

Embriaco, D.

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Magnetic and Gravimetric model of Panarea (Aeolian islands ) 
 
 
 
Luca Cocchi1,2, Fabio Caratori Tontini2, Cosmo Carmisciano2, Davide Embriaco2,3 
 
 
 
1 Università di Bologna, Dipartimento Scienze della Terra, Geologico-Ambientali, P.zza Porta S. Donato 1, 
Bologna; 
2 Istituto Nazionale di Geofisica e Vulcanologia, Sede di Portovenere, Via Pezzino Basso, 2 19020 (Sp) 
3 Consiglio Nazionale delle Ricerche 
 
 
 
We show  the results of the gravimetric and magnetometric surveys of the Island of  Panerea and its 
archipelago. These geophysical surveys belong to a major  multiparametric project for the evaluation of the 
volcanic and seismic  hazard of the island. Panarea is considered a volcanic active area as dimostrated by gas 
eruption of November 2002.  
 In May 2006 we have performed the gravimetric and magnetometric survey of the volcanic cone  
and  its islets (Basiluzzo, Bottaro and Lisca Bianca). We have evaluated the magnetic anomaly field  of the 
offshore portion of Panarea by marine survey (magnetometer Geometrics G880), covering a 4x4 km area 
located a east of the island.  The marine magnetometric survey has been integrated to the onland one for a 
complete magnetic cover of the study area. The gravimetric campaign has been performed by using a pair of 
micro-gravitymeters (LaCoste & Romberg D model).  The island cone has been sampled every 250 meter 
along the local paths.  The gravimetric dataset has been processed by using the standard method. The 
complete Bouguer reduction has been performed by  the Parker method after the evaluation of the optimal 
bouguer density using a cross-plot bouguer anomaly vs topography data. 
Starting from the Bouguer anomaly, we have obtained a density map of the Island by a 2D inversion using a 
Tikonov regularization. The magnetic data of the global study area have been inverted performed a 
bidimensional map of the magnetic susceptibility. The recovered model has been superimposed to the 
geological features of the area evaluating the possible sources of the anomalous magnetic field.  


Magnetic and Gravimetric model of Panarea (Aeolian islands )

http://www.earth-prints.org/bitstream/2122/4946/1/MGMEESV_Cocchi_2006.pdf

Magnetic and Gravimetric model of Panarea (Aeolian islands )

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