A violent eruption of Mount Vesuvius in Campania, Italy, that sent a column of superheated tephra and gas about 33 kilometers into the atmosphere and buried the Roman towns of Pompeii and Herculaneum under pyroclastic surges and ash. The burial preserved the cities in extraordinary detail, making the site a UNESCO World Heritage listing and giving volcanology the term Vesuvian eruption, and the event is uniquely documented by two eyewitness letters from Pliny the Younger.
Facts
Disputed
Event DateThe traditional date rests on a figure in Pliny the Younger's letter to Tacitus, printed since 1508 as 24 August; the surviving manuscript tradition is ambiguous, with some copies reading other dates. Archaeological evidence favors an autumn eruption instead: excavated autumn fruit, warm clothing on victims and wine vessels sealed after the grape harvest, a 2007 study matching the ash plume's southeasterly fall to autumn rather than summer wind patterns, and a 2018 charcoal inscription apparently dated 17 October whose own dating (whether it records 79 AD itself) remains unconfirmed. A 2022 study proposed a range of 24 October to 1 November; that conclusion has been challenged in turn. The traditional 24 August date is recorded here as the conventional reference point given the genuine, still-unsettled state of the scholarship, not as a claim that it is the best-supported date. Death TollUnknown; remains of over 1,500 people have been recovered from Pompeii and Herculaneum, whose combined population exceeded 20,000, but the total death toll is unconfirmed 1 Magnitude or ScaleVolcanic Explosivity Index (VEI) 5, eruption column reaching about 33 kilometers 1 Cross-Tradition Connections
Associated With
Rated Volcanic Explosivity Index 5.
In Discipline
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