Fig. 1: Outline of the main features of the Campi Flegrei caldera.
From: Magma chamber failure and dyke injection threshold for magma-driven unrest at Campi Flegrei caldera
a Simplified geological map of the Campi Flegrei caldera indicating caldera rims, volcano-tectonic faults, and lineaments58,95, and post-NYT vent location subdivided by Epochs. The top right inset shows a simplified chronostratigraphic scheme from Fernandez et al.11. b Plot showing the erupted volume of post-NYT eruptions (in log scale), yellow boxes indicate volcanic epochs13. Error bars indicate uncertainties on the erupted volume. c Schematic diagram summarizing the Campi Flegrei sub-volcanic plumbing system storage depth based on petrologic constraints20 and independent constraints such as geodetic inversion and seismic tomography. G: Geothermal system101; U: current volcanic unrest28; T: seismic tomography35,36; Petrologic constraints (Stock et al.20 and references therein), including P: Phase equilibria; MIs: Melt inclusions 1-2: Fondo Riccio; Minopoli 2; 3: Agnano-Monte Spina; 4: Averno 283; 5: Astroni 684; 6: Nisida32; M: Melts modeling on post-NYT eruptions92. E: Cooling and decompression experiments: Monte Nuovo24. Pressure estimates were converted to depths using a crustal density of 2600 kg m−3 (see “Methods” and Supplementary Fig. S1).
