The Volcano Above the City
Mount Vesuvius is one of the most famous volcanoes in the world, and it overlooks the Italian city of Naples. The volcano rises dramatically above the Bay of Naples in the region of Campania, in southern Italy. Its cone is a constant feature on the horizon for the people of Naples, a beautiful but powerful presence looming over the busy city below.
The Eruption That Buried Pompeii
Vesuvius is best known for a catastrophic event in the year 79 AD. In that year, the volcano erupted violently, sending a towering column of ash, gas, and rock into the sky. The eruption buried several nearby Roman towns, most famously Pompeii and Herculaneum, under deep layers of ash and volcanic debris. The disaster preserved these towns almost frozen in time, and centuries later they became remarkable archaeological windows into the ancient Roman world.
Still an Active Volcano
Vesuvius is not a relic of the past. It is still an active volcano, and it has erupted many times throughout history since the famous disaster of 79 AD. This makes it one of the most closely watched volcanoes in the world. Scientists monitor it constantly for any signs of activity, because a large population lives in its shadow today.
A Dangerous Neighbor
What makes Vesuvius especially significant is the sheer number of people living near it. The region around the Bay of Naples is densely populated, with millions of people residing within reach of a potential eruption. This combination of an active volcano and a huge nearby population makes Vesuvius one of the most dangerous volcanoes on the planet, and the reason it is studied so carefully.
Source
This article was written using information from Wikipedia.