A volcano is a geological landform (usually a mountain) where magma (rock of the Earth's interior made molten or liquid by extremely high temperatures along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet.
Some volcanoes consist of a crater alone, with scarcely any mountain at all; but in the majority of cases the crater is situated on top of a mountain (the volcano), which can tower to an enormous height.
Volcanoes that terminate in a principal crater are usually of a conical form.
The active cone is the high peak on the left side; the smaller one on the right is part of the Somma caldera wall.
The fleet also took on a rescue mission for those at the foot of the volcano when, as it was preparing to leave, a messenger arrived from a friend of Pliny’s living on the coast near the foot of the volcano imploring him to rescue her.
The volcano became quiescent at the end of the 13th century and in the following years it again became covered with gardens and vineyards as of old.
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