Volcanoes of the Tyrrhenian

archipelago

Procida (; ) is one of the Phlegraean Islands off the coast of Naples in southern Italy. The island is between Cape Miseno and the island of Ischia. With its tiny satellite island of Vivara, it is a (municipality) of the Metropolitan City of Naples, in the region of Campania.

Ischia ( , , ) is a volcanic island in the Tyrrhenian Sea. It lies at the northern end of the Gulf of Naples, about from the city of Naples. It is the largest of the Phlegrean Islands. Although inhabited since the Bronze Age, as a Greek emporium it was founded in the 8th or 9th century BCE, and known as Πιθηκοῦσαι, Pithekoūsai.

Ustica (; ) is a small Italian island in the Tyrrhenian Sea. It is about across and is situated north of Capo Gallo, Sicily. Roughly 1,300 people live in the comune (municipality) of the same name. There is a regular ferry service from the island to Palermo in Sicily.

thumb|View of the town of Lipari

island group

Marsili is a large undersea volcano in the Tyrrhenian Sea, about south of Naples. The seamount is about 3,000 m (9,800 feet) tall; its peak and crater are about 450 m below the sea surface. Though it has not erupted in recorded history, volcanologists believe that Marsili is a relatively fragile-walled structure, made of low-density and unstable rocks, fed by the underlying shallow magma chamber. Volcanologists with the Italian National Institute of Geophysics and Volcanology (INGV) announced on March 29, 2010, that Marsili could erupt at any time, and might experience a catastrophic collapse