History of Herculaneum Excavations - Eruption, Rediscovery, and Major Finds

Herculaneum is often described in one sentence: a Roman town destroyed by Vesuvius in 79 AD. But the real story is longer, stranger, and more human. It is a story of sudden burial, centuries of silence, accidental rediscovery, and generations of archaeologists trying to recover not just walls and objects, but lives.

If Pompeii feels vast and theatrical, Ercolano often feels intimate. Streets are narrower, houses seem closer to daily life, and the preservation can feel almost unsettlingly personal: wood, thresholds, shelving traces, domestic rhythms suspended.

This is the long arc of how the city disappeared, how it re-emerged, and why its excavation history still matters.

The city before disaster

Ancient Herculaneum stood along the Bay of Naples, on the lower slopes of Vesuvius. In Roman times it was smaller than Pompeii, but highly desirable: sea-facing, temperate, and attractive to wealthy families who built elegant residences there.

Tradition connected the city to Hercules, while later Roman development gave it infrastructure, baths, commercial streets, sanctuaries, and refined houses. Under figures such as Marcus Nonius Balbus, urban embellishment and civic prestige increased. By the first century AD, Herculaneum was not a marginal settlement but an active coastal town with status.

79 AD: destruction in phases

The eruption did not hit every Vesuvian settlement in exactly the same way or at the same moment.

While Pompeii was heavily affected early by ash and lapilli fallout, Herculaneum’s fatal blow came with pyroclastic surges and flows: superheated clouds and dense currents of volcanic material that moved with devastating speed.

In practical terms, the sequence meant:

1. Escalating volcanic crisis in the region.
2. Atmospheric collapse columns and surges.
3. Extreme thermal impact at Herculaneum.
4. Deep burial beneath volcanic deposits.

The city ended up entombed under many meters of material. Architecture vanished from sight. Streets were erased from memory. Over time, a new urban layer formed above the ancient one.

Seventeen centuries of silence

For roughly 1,700 years, Herculaneum remained buried. Unlike freestanding ruins visible from afar, much of the ancient city stayed hidden under later settlement. That invisibility shaped its modern history: rediscovery came not through planned archaeology, but through chance.

In 1709, a local farmer, Ambrogio Nocerino, reportedly encountered valuable marble elements while digging a well. That accidental encounter became a turning point. At first, finds were isolated and exploratory rather than systematic. But the possibility was now clear: an ancient city survived below.

Bourbon-era excavations and the tunnel phase

In 1738, under Charles of Bourbon, more organized excavations began. Roque Joaquín de Alcubierre played a key role in early operations and mapping efforts.

The method of the time often relied on underground tunneling (burrows) rather than open-area excavation. This approach could reach valuable spaces, statues, and inscriptions, but it also had severe limits:

• Narrow access and dangerous working conditions.
• Fragmentary understanding of urban context.
• Significant risk of damaging structures and finds.

Even so, these campaigns brought Herculaneum into European consciousness and fed intense scholarly and courtly interest in classical antiquity.

The Villa of the Papyri and a unique archive

Around the mid-18th century, one of the most extraordinary discoveries in Mediterranean archaeology emerged: the Villa of the Papyri.

Karl Weber, a Swiss engineer working within the Bourbon excavation framework, produced influential plans and pushed for more rational documentation. In 1750s–1760s work, excavators uncovered sculptures and, most famously, a library of carbonized papyrus scrolls.

More than 2,000 charred papyri were eventually identified. Their survival was paradoxical: destroyed as usable books, preserved as archaeological objects. They offered direct access to ancient textual culture in a way almost no other site could.

The villa discoveries transformed Herculaneum from a source of beautiful artifacts into a site central to intellectual history.

From extraction to archaeology

A crucial historical shift followed: the gradual move from treasure-oriented extraction toward contextual archaeology.

Weber and others recognized that tunneling was destructive and limited. Open excavation methods, though slower and more complex, allowed scholars to understand streets, buildings, and relationships between finds. This transition took time and was repeatedly interrupted by politics, funding constraints, and changing priorities.

In the 19th century, campaigns continued with alternating momentum. The modern scientific identity of the site did not arrive all at once; it emerged through cumulative corrections across generations.

The Maiuri era and the city we see today

In 1924, Amedeo Maiuri became superintendent and launched a major excavation phase. His work, including expropriation measures and broad urban exposure, dramatically shaped what visitors recognize in Herculaneum now.

Maiuri’s campaigns expanded visibility of:

• Street networks and house plans.
• Public buildings and baths.
• Commercial and service spaces.
• The layered relationship between ancient and modern urban fabric.

His interventions were products of their time, and later scholarship has refined or challenged parts of earlier interpretation. Still, the scale of his contribution to site exposure was decisive.

1981: the shoreline dead and the human shock

One of the most moving moments in modern Herculaneum archaeology came in 1981, with the discovery of large groups of victims in ancient shoreline arches (fornici), alongside a carbonized boat.

For years, assumptions had circulated that many inhabitants escaped. The shoreline evidence forced a more complex, painful reading: numerous people had gathered in boat shelters, likely waiting for evacuation by sea that never came.

Archaeology here was not abstract chronology. It was intimate evidence of final decisions under impossible conditions.

Why Herculaneum preserves so much

Herculaneum’s burial conditions differed from Pompeii in ways that helped preserve organic materials in exceptional cases. This includes carbonized wood elements and other fragile traces rarely surviving elsewhere.

That preservation is both a gift and a responsibility. Materials are vulnerable to:

• Water and salt cycles.
• Thermal stress.
• Biological growth.
• Visitor pressure.

Conservation is therefore ongoing, not finished. Every closure, scaffold, and restricted area is part of the site’s survival strategy.

Visiting with historical depth

A meaningful visit to Ercolano is not only a checklist of famous domus. It is a layered walk through:

1. A Roman coastal town at its height.
2. A volcanic catastrophe.
3. Centuries of burial.
4. Royal-era tunneling and early collecting.
5. Modern archaeology and conservation ethics.

If possible, consider visiting with an expert guide or with a clear thematic plan (urban life, architecture, eruption history, or conservation). The site rewards slow attention far more than speed.

Key timeline at a glance

Bottom line

The history of Herculaneum excavations is not just about uncovering ruins. It is about changing how we look at the past: from collecting objects to reconstructing lives, from spectacle to context, from discovery to long-term care.

Ercolano endures because each generation has had to decide, again, how to reveal it without losing it.