Mount Vesuvius

Although the catastrophe at Pompeii was quite remote in time, eyewitness accounts of the destruction have survived to our times.

An excerpt from the article 19 facts about Mount Vesuvius
These accounts are contained in letters written by Pliny the Younger to Publius Cornelius Tacitus, a Roman historian. Pliny was about 17 years old at the time of the catastrophe and observed the events surrounding the volcano from a distance of about 29 kilometers, from the city of Misenium. His uncle, Pliny the Elder, set out to rescue his friend and sent a rescue fleet towards the volcano. Although written 25 years after the volcanic eruption, Pliny's letters describe quite well the information gathered from his uncle and his own observations made "at a safe distance."