Fig. 5: Geodetic modeling of Campi Flegrei magmatic source.
From: Magma chamber failure and dyke injection threshold for magma-driven unrest at Campi Flegrei caldera
a 3D plot showing the tradeoff between the source depth and magmatic excess pressure of a sill-like source in producing a spectrum of uplift values at the deformation center. The source radius is fixed at 4.5 km. b Plot showing the comparison between normalized vertical displacement of a Mogi point source and a Fialko sill-like source displaying a bell-shaped pattern as computed for different source depths with a fixed radius of 4.5 km. Blue circles are 1980–1983 vertical levelling data71; Green and cyan circles are the vertical and horizontal components of the 2010–2021 GNSS data72; Red circles are geoarchaeological data of ground deformation preceding the Monte Nuovo eruption in 1538 CE18. Dashed and dotted colored lines show the vertical and horizontal components modeled with a Mogi source fitting the current deformation. Dashed shaded-red lines show the vertical component modeled with the Fialko model of a sill-like source fitting the geoarchaeological data18,19.
