Phlegraean Fields


Phlegraean Fields

(flĭgrē`ən), Ital. Campi Flegrei, fertile volcanic region, Campania, S Italy, along the Tyrrhenian Sea between Pozzuoli and Naples. It is named for ancient Phlegra, in Macedonia, where in mythology the battle between the giants and the gods took place. In Roman times, the cities of Cumae (Cuma), Baiae (Baia), and Puteoli (Pozzuoli) were fashionable watering places.

The region lies mostly along the northern side of an 8-mi-wide (13-km) volcanic caldera of the same name; most of the caldera is beneath the Gulf of Pozzuoli. The caldera was created by two large explosive eruptions, the first and more massive occurring about 36,000 years ago and the second about 15,000 years ago; both eruptions were far more destructive, with more wide-reaching effects, than those of VesuviusVesuvius
, Ital. Vesuvio, active volcano, S Italy, on the eastern shore of the Bay of Naples, SE of Naples. The only other active volcano on the European mainland is the Campi Flegrei (se Phlegraean Fields) caldera on the Gulf of Pozzuoli to the east.
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 to the west. A large number of eruptions subsequently occurred in three periods, with the last eruption occurring c.1650 B.C. More recent eruptions were at Solfatara (A.D. 1158) and Monte Nuovo (1538). Some of the region's many craters, cinder cones, and other volcanic features emit sulfurous vapors and mineral waters.

Phlegraean Fields

 

(Italian, Campi Flegrei), a volcanic region in Italy, northwest of Naples. The Phlegraean Fields are a hilly plain, with elevations of up to 458 m, formed as the result of the fusion of volcanic domes, craters, and ring structures. There are solfataras, mofettes, and thermal springs in the fields.