description Ferdinandea (Graham Island) Overview
Ferdinandea, also called Graham Island, is a submerged volcanic feature in the Strait of Sicily between Sicily and Tunisia. An eruption in 1831 built a temporary island of loose volcanic material above sea level, prompting competing names and territorial claims before waves rapidly eroded it beneath the surface. It belongs to the submarine volcanic area known as Campi Flegrei del Mar di Sicilia and has reappeared during earlier eruptions.
help Ferdinandea (Graham Island) FAQ
Why did Graham Island disappear after appearing in 1831?
The island consisted largely of loose volcanic ash and other fragmental material produced by a shallow submarine eruption. Mediterranean waves rapidly eroded the new tuff cone, and it had submerged again by the end of 1831.
Why does Ferdinandea have so many different names?
The Kingdom of the Two Sicilies called it Ferdinandea, Britain used Graham Island, and France used names including Île Julia. The competing names reflect the international attention and territorial claims triggered by its sudden appearance.
Where is the former island of Ferdinandea now?
Its submerged summit lies in the Mediterranean between Sicily and Tunisia, roughly 30 kilometers south of Sicily. It forms part of the submarine volcanic area now associated with Empedocles.
Could Ferdinandea rise above sea level again?
Another eruption could build enough material to create a temporary island, as happened in 1831. Whether it would persist would depend on how much resistant lava formed compared with easily eroded tuff.
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
