Campi Flegrei, Campania, Italy. Solfatara fumarola (Biggest fumarole) is the name of the main fumarole of the Solfatara with water vapor temperatures reaching approx. 160° C. Within the mouth are certain salts contained in the vapor condense, among which realgar (As S), cinabro (Hg S) and arsenic trisulphide (As2 S3) which give a yellow-reddish colour to the surrounding rocks; solfridric acid (H2S) is also present, by the distinguishing "rotten egg" smell. The area of the Bocca Grande (Large Mouth) was called by the Ancients “Forum Vulcani” that is the dwelling of the god of Fire.


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: 4172px × 2792px
Location: Solfatare, Pozzuoli, Campania, Italy
Photo credit: © Ferdinando Piezzi / Alamy / Afripics
License: Licensed
Model Released: No

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