Mount Vesuvius

It is not known precisely how many people died as a result of the eruption of 79, but it is estimated that the population of Pompeii and Herculaneum may have totaled 20,000.

An excerpt from the article 19 facts about Mount Vesuvius
So far, the remains of about 1500 people have been found in the area of the two ancient cities, 1044 of them in Pompeii.