Phlegraean Fields

The Phlegraean Fields (Italian: Campi Flegrei [ˈkampi fleˈɡrɛi]; Neapolitan: Campe Flegree, from Greek φλέγω phlego, "to burn")[2][citation needed] is a large volcano situated to the west of Naples, Italy. It was declared a regional park in 2003. The area of the caldera consists of 24 craters and volcanic edifices; most of them lie under water. Hydrothermal activity can be observed at Lucrino, Agnano and the town of Pozzuoli. There are also effusive gaseous manifestations in the Solfatara crater, the mythological home of the Roman god of fire, Vulcan. This area is monitored by the Vesuvius Observatory.[3]

Phlegraean Fields
Phlegraean Fields view from Naples
Highest point
Elevation458 m (1,503 ft)[1]
Coordinates40.827°N 14.139°E / 40.827; 14.139[1]
Native nameCampi Flegrei  (Italian)
Age of rock40,000 years
Mountain typeCaldera[1]
Volcanic arc/beltCampanian volcanic arc
Last eruptionSeptember to October 1538[1]
Sulfur at the Solfatara crater
1911 map of the area
Topographic relief map

The area also features bradyseismic phenomena, which are most evident at the Macellum of Pozzuoli (misidentified as a temple of Serapis): bands of boreholes left by marine molluscs on marble columns show that the level of the site in relation to sea level has varied.

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