The city of Pompeii was buried under the ashes of Mount Vesuvius in 79 AD due to its volcanic eruption. The ashes and volcanic debris covered the city, preserving it but causing the death of many inhabitants.
The Vesuvius is a volcano located in southern Italy, near Naples, formed by the phenomenon of subduction. In simple terms, it is the African plate slowly diving beneath the Eurasian plate, and this descent brings magma up to the surface. Vesuvius belongs to the category of so-called explosive volcanoes, capable of expelling violent pyroclastic flows, large quantities of ash, and toxic gases. Before the famous eruption in 79 AD, this volcano had been dormant for several centuries, and its dangerous volcanic activity was largely forgotten by the local inhabitants. However, it held beneath a thick layer of rock a well-filled magma chamber ready to erupt violently at the slightest opportunity.
The eruption began on the morning of August 24, 79, with an impressive explosion that shot a gigantic cloud of gas, ash, and volcanic stones up to about 30 kilometers into the air. This plume, visible from far away, quickly covered the area with a thick layer of hot ashes that accumulated in dense flakes, darkening the sky like a sudden night. After a few hours of intense explosive activity, the plume collapsed under its own weight, triggering a series of pyroclastic flows, a hellish mix of burning gases, dust, and rocks rushing down the slopes at high speed. These glowing flows, reaching temperatures of around 400 to 500 °C, surged straight towards the city of Pompeii and overwhelmed it, engulfing everything in their path. In just 24 hours, the entire city was buried under several meters of volcanic deposits. The burial was sudden, relentless, and froze the city and its inhabitants in a poignant instant.
Mount Vesuvius had accumulated for hundreds of years an enormous amount of viscous and gas-rich magma, ready to explode violently. At the time of the eruption, the wind was blowing southeast, pushing a large part of the ashes and pumice stones directly towards Pompeii. The city, located very close (less than ten kilometers away), found itself directly under the raining fire. Additionally, the duration of the eruption (nearly 24 complete hours) contributed to the impressive thickness of the deposits, sometimes reaching several meters in a short time. And one last thing, the inhabitants had not taken the precursors of the eruption seriously, which did not help in evacuating the city quickly.
On the day of the eruption, the inhabitants of Pompeii suddenly found themselves in complete chaos. From the very first hours, a heavy rain of pumice and ash fell on their heads. Some quickly decided to flee, but many were trapped by panic or by their homes, whose roofs were collapsing under the weight of volcanic materials. In no time, the streets were filled with debris, preventing any organized evacuation attempts. Fast and deadly pyroclastic flows (a type of burning avalanche made up of gas and rocks) rushed down from Vesuvius at nearly 100 km/h and reached the city. Those who remained on the spot died of asphyxiation, burns, or being crushed. The entire city was buried under several meters of ash and volcanic rock, preserving buildings, possessions, animals, and victims exactly as they were at the moment of the disaster.
One of the most famous historical accounts is that of Pliny the Younger, a Roman who recounts the catastrophe in two letters addressed to the historian Tacitus. He describes a large, dark, tree-shaped cloud rising high into the sky and ash rains covering everything. Thanks to him, the term Plinian eruption has even been given to this type of explosive volcanic event.
On the archaeological side, Pompeii offers incredibly precise evidence: the plaster casts of the inhabitants frozen in the positions of their death clearly show the sudden violence of the catastrophe. Many well-preserved frescoes and everyday objects found also tell us in detail how the Pompeians lived just before the tragedy. These concrete and poignant elements provide a clear vision of the chaos and tragedy that gripped this ancient city in just a few hours.
The famous eruption of Vesuvius in the year 79 not only buried Pompeii but also destroyed other ancient cities, including Herculaneum and Stabiae.
Plaster casts of the victims of Pompeii, created by filling the cavities left in the ash, still allow us to accurately discover the last moments of these inhabitants today.
After the eruption of Vesuvius, the city of Pompeii remained buried for about 1,700 years before being accidentally rediscovered in the 18th century.
Before the major eruption of 79 AD, the inhabitants of the region probably did not realize that Mount Vesuvius was a volcano, as it had shown no significant activity for hundreds of years.
Due to the exceptional preservation of the site, archaeologists have discovered richly detailed frescoes, splendid mosaics, household utensils, plaster casts of the victims, as well as valuable information about the daily life of the Romans in ancient times.
It is difficult to precisely determine the number of survivors, but it is certain that some people managed to escape in time. Archaeological evidence and historical accounts, such as the letters of Pliny the Younger, indicate that many perished on site.
The city was buried under several meters of volcanic ash and pumice, which helped protect the buildings, everyday objects, and even some victims from air, humidity, and time. These exceptional conditions allowed archaeologists to uncover a remarkably well-preserved city.
Yes, Mount Vesuvius is still an active volcano. It continues to pose a real risk to the Naples region, which is one of the most closely monitored volcanic areas in the world. Emergency plans are regularly updated to protect the population in the event of imminent volcanic activity.
The eruption of Vesuvius in the year 79 lasted approximately two full days. It began on August 24 (the date commonly accepted, although some sources mention October) and quickly led to the massive destruction of the city and its surroundings.
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