Alessandro d'Anna and the 1779 Vesuvius Eruption: The Grand Tour and the Enlightenment Sublime

On the night of 8 August 1779, the residents of Naples and the foreign travelers gathered on its shores witnessed one of the most spectacular natural events of the 18th century. Mount Vesuvius — the volcano that had destroyed Pompeii and Herculaneum in 79 AD and had been erupting intermittently ever since — produced an eruption of extraordinary visual drama: a towering column of incandescent material rising high above the crater, volcanic lightning cutting through the ash cloud in luminous streaks, and the Bay of Naples illuminated by the reflected glow of the lava. Among those who witnessed the event was Alessandro d'Anna (1746–1810), the celebrated Neapolitan painter and decorator, who transformed what he saw into a series of colored aquatints that would become some of the most iconic images of the Enlightenment's fascination with the natural sublime.

Alessandro d'Anna and the Neapolitan Artistic Tradition

Alessandro d'Anna was born in Palermo in 1746 and trained as a painter in the tradition of the Neapolitan school, which had been one of the most vital and innovative artistic traditions in Europe since the 17th century. He established himself in Naples as a painter of decorative interiors and theatrical scenery — a tradition that gave him an exceptional command of large-scale composition, dramatic lighting, and the representation of atmospheric effects. His work for the royal court of Naples and for the great aristocratic palaces of the city brought him into contact with the international community of artists, scientists, and travelers who made Naples one of the essential destinations of the Grand Tour, and it was through this community that his Vesuvius aquatints found their audience across Europe.

D'Anna's Vesuvius images were produced in collaboration with two of the finest engravers of the period: Friedrich Weber, a German engraver working in Naples, and Jean-Baptiste Chapuy, a French engraver whose work was widely distributed across Europe. The aquatint technique — a form of intaglio printmaking that uses acid to create tonal areas on a copper plate, producing images of extraordinary richness and depth — was ideally suited to the representation of volcanic eruptions: it could capture the gradations of light and shadow in the ash cloud, the luminosity of the lava, and the atmospheric effects of smoke and fire with a fidelity that line engraving could not achieve.

The 1779 Eruption and the Science of Volcanoes

The 1779 eruption of Vesuvius was one of the most intensively documented volcanic events of the 18th century, and it occurred at a moment when the scientific study of volcanoes was undergoing a fundamental transformation. For most of European history, volcanic eruptions had been understood primarily in theological terms — as divine punishment, as manifestations of the fires of hell, as signs of God's power and wrath. The Enlightenment transformed this understanding: volcanoes became objects of scientific inquiry, their eruptions to be observed, measured, and explained in terms of natural causes.

The central figure in this transformation was Sir William Hamilton (1730–1803), the British envoy to the court of Naples and one of the most important volcanologists of the 18th century. Hamilton had been observing Vesuvius since his arrival in Naples in 1764, and his Campi Phlegraei (1776–1779) — a lavishly illustrated account of the volcanic fields around Naples, with hand-colored aquatint plates by Pietro Fabris — had established the scientific and aesthetic framework within which the 1779 eruption would be understood and represented. Hamilton was present at the 1779 eruption and described it in detail in his correspondence with the Royal Society of London, noting in particular the phenomenon of volcanic lightning — the electrical discharges produced by the collision of ash particles in the eruption column — that d'Anna would capture so memorably in his aquatints.

D'Anna's depiction of the volcanic lightning — the so-called fuoco di Sant'Elmo, rendered as luminous yellow streaks cutting through the ash cloud — was not merely an artistic effect but a scientific observation. The phenomenon had been noted by earlier observers of Vesuvius, but d'Anna's aquatints gave it its most vivid and widely distributed visual representation, and they contributed to the growing scientific understanding of the electrical properties of volcanic eruptions that would eventually lead to the modern study of volcanic lightning.

The Grand Tour and the Cult of Vesuvius

By the time of the 1779 eruption, Vesuvius had become the most celebrated natural spectacle in Europe — an essential destination for the educated travelers who undertook the Grand Tour, the extended journey through France, Italy, and sometimes Greece and the Levant that was considered the culmination of an aristocratic or upper-bourgeois education. The discovery of Pompeii and Herculaneum in the 1730s and 1740s had transformed Naples from a pleasant stop on the Italian journey into one of its most important destinations, and the proximity of the excavations to the still-active volcano that had destroyed them gave the city a unique combination of historical and natural drama that no other destination in Europe could match.

For Grand Tour travelers, witnessing an eruption of Vesuvius was the ultimate experience of the natural sublime — the aesthetic category, defined by Edmund Burke in his Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful (1757), that described the experience of terror transformed into aesthetic wonder. Burke had argued that the sublime was produced by objects and experiences that threatened the observer with destruction — vast mountains, raging seas, violent storms — but from a position of safety that allowed the terror to be experienced as pleasure. Vesuvius in eruption was the perfect Burkean sublime: a spectacle of overwhelming power and beauty, observed from the safety of the Bay of Naples or the slopes of the mountain itself, that combined the terror of volcanic destruction with the aesthetic pleasure of one of the most visually extraordinary natural events in the world.

D'Anna's aquatints captured this experience with extraordinary fidelity. The Weber plate — with its emphasis on the scientific observation of the eruption column, the volcanic lightning, and the geographical precision of the Bay of Naples — addressed the Enlightenment naturalist in the Grand Tour traveler. The Chapuy plate — with its figures in the foreground observing the spectacle with expressions of awe and reverence — addressed the philosopher of the sublime, placing the human observer in the landscape and making visible the emotional experience that Burke had described in words.

The Aquatint and the Art of Volcanic Representation

The colored aquatint technique that d'Anna and his engravers used to document the 1779 eruption was, by the late 18th century, the most sophisticated medium available for the reproduction of colored images. Developed in France in the 1760s and rapidly adopted across Europe, aquatint combined the tonal richness of mezzotint with the linear precision of etching, and the addition of hand-coloring — applied by skilled colorists working from the artist's original — gave the finished prints a chromatic intensity that rivaled watercolor. For the representation of volcanic eruptions — with their dramatic contrasts of light and shadow, their luminous lava flows, and their atmospheric effects of smoke and ash — the technique was ideally suited, and d'Anna's Vesuvius aquatints are among the finest examples of the medium applied to the documentation of natural phenomena.

The prints were widely distributed across Europe through the networks of the print trade, and they became essential souvenirs of the Grand Tour — images that allowed those who had witnessed the eruption to relive the experience, and those who had not to imagine it. They were collected by scientists, aristocrats, and educated travelers across Britain, France, Germany, and the Netherlands, and they contributed to the formation of the visual culture of the Enlightenment's engagement with the natural world.

If the wonder of the Enlightenment sublime inspires you, our Vesuvius Journal — D'Anna 1779 Aquatint Naples brings d'Anna's aquatints to the cover of a hardcover journal.

References

• Hamilton, W. Campi Phlegraei: Observations on the Volcanos of the Two Sicilies. Naples, 1776–1779.
• Burke, E. A Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful. London, 1757.
• Leppmann, W. Pompeii in Fact and Fiction. Elek, 1968.
• Coltman, V. Classical Sculpture and the Culture of Collecting in Britain since 1760. Oxford University Press, 2009.
• Sigurdsson, H. (ed.). Encyclopedia of Volcanoes. Academic Press, 2000.