Two Cities, One Catastrophe
On 24 August 79 CE, Mount Vesuvius erupted with a force 100,000 times more powerful than the Hiroshima bomb. Two Roman cities — Pompeii and Herculaneum — were obliterated in different ways, and both preserved their dead in uniquely haunting forms.
Pompeii was buried under six metres of ash and pumice. The bodies decomposed, leaving hollow moulds in the hardened ash. When Giuseppe Fiorelli poured plaster into those voids in 1863, the dead came back — frozen in their last posture, their last expression, their last second of life.
Herculaneum was hit differently. A pyroclastic surge — a superheated cloud of gas and rock at 500°C — killed everyone in an instant. In the boat sheds along the beach, 300 people had gathered hoping to escape by sea. They never did. Their skeletal remains still huddle there, preserved exactly as they fell.
"The darkness was not like a moonless or cloudy night, but the darkness of a sealed room with all the lights extinguished." — Pliny the Younger, eyewitness letter, 79 CE
Key Facts
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Frequently Asked Questions
When did Vesuvius destroy Pompeii and Herculaneum?
The eruption of Mount Vesuvius began on 24 August 79 CE according to the traditional reading of Pliny the Younger's account — though a charcoal inscription found in 2018 suggests the date may have been 24 October 79 CE. The eruption lasted approximately 18 hours, burying Pompeii under 4-6 metres of volcanic ash and Herculaneum under a 20-metre layer of hardened pyroclastic material.
How many people died at Pompeii?
The exact death toll is unknown. Approximately 2,000 bodies or body casts have been found within Pompeii's excavated area — but only about two-thirds of the city has been excavated. Ancient sources suggest Pompeii had a population of 11,000-20,000; most historians believe the majority fled in the early stages of the eruption. Herculaneum's population was smaller — perhaps 4,000-5,000 — and the faster pyroclastic surge left fewer survivors.
What are the Pompeii body casts?
When the volcanic ash that buried Pompeii hardened, it preserved the shape of people who died in the ash layer. As the soft tissue decomposed over centuries, the hardened ash formed a shell around the skeleton. In 1863, archaeologist Giuseppe Fiorelli discovered these hollow spaces and developed the technique of injecting liquid plaster into them — creating detailed plaster casts that preserve facial expressions, clothing folds, and body positions from the final moments of the eruption.
Can you visit Pompeii and Herculaneum today?
Yes. Pompeii is one of the world's most visited archaeological sites, receiving over 3.5 million visitors annually. The site is a UNESCO World Heritage Site and contains temples, bathhouses, shops, taverns, and the famous body casts in the Garden of the Fugitives. Herculaneum, just 7km away, is smaller but often considered better preserved — the pyroclastic material that buried it is harder and has protected structures to a greater degree than the ash at Pompeii.