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Fig. 3 | Journal of Applied Volcanology

Fig. 3

From: Multiple natural hazards at volcanic islands: a review for the Ischia volcano (Italy)

Fig. 3

Review of the geophysical knowledge, reporting: a Slices of 3D P-wave velocity model in the depth interval 1–4 km b.s.l. High-velocity value along the coast indicates the presence of caldera rim. b Slices of 3D density contrast model in the depth interval 0.3 km a.s.l–1.8 km b.s.l. High density contrasts are visible along the coast and in correspondence of Monte Epomeo (modified from Capuano et al. 2015). c Magnetic field of Ischia island obtained after pole-reduction and filtering; d Self Potential anomaly map of Ischia Island (modified from Paoletti et al. 2009). e S-N resistivity profile obtained from the inversion of the MTsurvey. Dotted lines are the faults associated with the caldera boundary and to the dislocation of the resurgent block; f WSWENE resistivity profile obtained from the inversion of the MT survey. The resistivity anomalies (marked as E, E1, and E2) are coincident with a thermal plume (modified from Di Giuseppe et al. 2017); g 3D thermal model by exploiting the thermal measurements available in literature; h 3D rheological model. The grey wireframe isosurface represents the B/D transition (modified from Castaldo et al. 2017)

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