The most recent eruption of Mount Vesuvius took place in March 1944, during the final stages of the Second World War, marking the volcano’s last recorded activity to date. It is the only volcano on mainland Europe to erupt in the last 100 years.
Vesuvius has a history of explosive eruptions. The number of people living in its vicinity causes concern for many. Its most famous eruption was in AD 79, which buried the Roman cities of Pompeii and Herculaneum.
Pliny the Younger, an eyewitness, wrote about the eruption in letters to the historian Tacitus. In 1631, a major eruption buried villages under lava flows and killed about 300 people. The volcano continued to erupt every few years.
The 1944 eruption
The eruption began on 18 March and lasted for around ten days, affecting several communities on the slopes of the volcano, including San Sebastiano al Vesuvio, Massa di Somma and Cercola. Lava flows destroyed homes, infrastructure and farmland, forcing thousands of residents to evacuate.
The event unfolded in multiple phases. Initial lava flows moved slowly down the volcano’s flanks, giving some residents time to escape. However, the situation intensified on 21 and 22 March, when explosive activity increased. Ash and volcanic material were ejected high into the atmosphere, falling across a wide area and causing roofs to collapse under the weight of debris.
One of the most striking aspects of the 1944 eruption was its impact on Allied forces stationed nearby. At the time, units of the United States Army Air Forces were based at airfields close to Naples. Volcanic ash and stones damaged aircraft, with dozens of planes rendered unusable. Photographs and reports from soldiers provide some of the most detailed modern accounts of the eruption.
Despite the scale of destruction, the death toll remained relatively low, with around two dozen fatalities reported. This was partly due to improved monitoring and faster evacuations compared to earlier eruptions. Nevertheless, the economic impact on local communities was severe, particularly in an already fragile wartime context.
Still an active volcano
Mount Vesuvius is one of the most closely monitored volcanoes in the world, largely because of its history and the dense population living in its vicinity.
Since 1944, the volcano has remained in a state of quiescence, but scientists continue to study it closely due to the potential risk it poses. Today, millions of people live in the surrounding area, making any future eruption a significant concern for civil protection authorities.
Seismic experts believe they will have between 14 and 20 days’ notice before an eruption. That would allow sufficient time to put the evacuation plan in action.
The area was officially declared a national park in 1955.
