Figure 1: Morphological and structural sketch map of the Campi Flegrei caldera.
From: Magma transfer at Campi Flegrei caldera (Italy) before the 1538 AD eruption
Circles: vents of the I epoch (15-9.5 ka BP; shaded), II epoch (8.6-8.2 ka BP; densely shaded) and III epoch (4.8-3.8 ka BP; green) of volcanic activity. Red: main faults and fractures; black line: Neapolitan Yellow Tuff caldera; yellow ellipse and cross: maximum uplifted sector and caldera centre in the last 5 ka; green ellipse: projection of the quasi-horizontal source (pressurized triaxial ellipsoid ~4000 m deep) of recent ground deformation12. Black squares: selected benchmarks and relative number (names in Supplementary Table S1). Thick blue line: cliff of the La Starza uplifted marine terrace. Thinner blue line: 10 m bsl isobath. Inset: distance of the eruptive vents active in the last 5 ka from the centre of the maximum uplifted zone in the same period. Digital Terrain Model by INGV-Osservatorio Vesuviano.
