Available Weekly Reports
There are no activity reports for Campi Flegrei.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1538 Sep 29||1538 Oct 6||Confirmed||3||Historical||Monte Nuovo|
|1650 BCE (?)||Unknown||Confirmed||4||Tephrochronology||Fossa Lupara (Monte Senga)|
|1870 BCE ± 50 years||Unknown||Confirmed||4||Radiocarbon (uncorrected)||Astroni|
|2000 BCE ± 150 years||Unknown||Confirmed||4||Tephrochronology||Averno|
|2040 BCE (?)||Unknown||Confirmed||3||Tephrochronology||Solfatara|
|2080 BCE ± 75 years||Unknown||Confirmed||2||Tephrochronology||Monte Olibano-Accademia|
|2150 BCE ± 500 years||Unknown||Confirmed||5||Radiocarbon (uncorrected)||Agnano Monte Spina|
|2220 BCE ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)||Eastern NYT caldera, Paleoastroni 2 tephra|
|2330 BCE ± 150 years||Unknown||Confirmed||3||Tephrochronology||Paleoastroni 1 tephra|
|2440 BCE (?)||Unknown||Confirmed||Radiocarbon (uncorrected)||Agnano-Monte Sant'Angelo|
|2500 BCE (?)||Unknown||Confirmed||4||Tephrochronology||Cigliano|
|2580 BCE ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)||Averno 1, Agnano 2 tephras|
|2890 BCE||Unknown||Confirmed||Radiocarbon (uncorrected)||East part of NYT caldera, Agnano 1 tephra|
|6300 BCE ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)||N part of NYT caldera (San Martino)|
|6490 BCE (?)||Unknown||Confirmed||3||Tephrochronology||Eastern part of NYT caldera|
|6650 BCE ± 100 years||Unknown||Confirmed||4||Radiocarbon (uncorrected)||Fondi di Baia, Sartania|
|7590 BCE ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)||NE part of NYT caldera, Pisani 3 tephra|
|7980 BCE ± 500 years||Unknown||Confirmed||3||Tephrochronology||Soccavo, Minapoli, Pisani & other vents|
|8480 BCE ± 100 years||Unknown||Confirmed||4||Radiocarbon (corrected)||Agnano Pomici Principali tephra|
Campi Flegrei is a large 13-km-wide caldera on the outskirts of Naples that contains numerous phreatic tuff rings and pyroclastic cones. The caldera margins are poorly defined and on the south lie beneath the Gulf of Pozzuoli. Episodes of dramatic uplift and subsidence within the dominantly trachytic caldera have occurred since Roman times. The earliest known eruptive products are dated 47,000 years before present (BP). The Campi Flegrei caldera formed following two large explosive eruptions, the massive Campanian ignimbrite about 36,000 years BP, and the >40 cu km Neapolitan Yellow Tuff (NYT) about 15,000 years BP. Following eruption of the NYT a large number of eruptions have taken place from widely scattered subaerial and submarine vents. Most activity occurred during three intervals: 15,000-9500, 8600-8200, and 4800-3800 years BP. Two eruptions have occurred in historical time, one in 1158 at Solfatara and the other in 1538 that formed the Monte Nuovo cinder cone.