Campi Flegrei, Campania, Italy. Solfatara volcano. The fumarole. in the Solfatara. Traces of rare red arsenic sulphur crystals called realgar can be found here. One of the most interesting phenomena of the Solfatara is the condensation of the water vapour when a small flame is brought near the fumaroles. The vapours gradually appear to be more intense as the minute solid particles produced by combustion and the ions in the atmospheric gases near the flame act as nuclei of condensation of the vapour.


Solfatara volcano, 1 km from Pozzuoli, is a part of Campi Flegrei, a nested caldera resulting from two large collapses related to past eruptions. At present, fumaroles and thermal springs occur in different sectors of the Campi Flegrei caldera. In particular, fumarolic activity occurs along the coast south of Pozzuoli and concentrates in the Solfatara area. Around 3 million people live in the Naples hinterland, that is why the Campi Flegrei is studied and monitored, being one of the most dangerous volcanic areas in the world.


Size: 3761px × 2491px
Location: Solfatare, Pozzuoli, Campania, Italy
Photo credit: © Ferdinando Piezzi / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: active, bradyseism, campania, campi, crater, fields, flegrei, fumarole, italy, naples, phlegraean, pozzuoli, puteoli, smoke-hole, solfatara, sulphurous, touring, tourism, travel, volcano