Campi Flegrei del Mar di Sicilia is a field of submarine volcanoes located south-west of Sicily.
It includes the vent of Ferdinandea, otherwise known as Graham Island, which erupted and emerged above sea level in 1831, and encompasses a larger volcano known as Empedocles.
The last recorded eruption was in 1867, from a vent named Pinne.
There was mild seismic unrest at Ferdinandea in 2000–2002.
At its highest, Campi Flegrei comes to 8 meters (26 feet) below sea level.