The Apennine volcanic arc is a geological feature located in central Italy, formed by the subduction of the African tectonic plate beneath the Eurasian plate. This process creates volcanic activity, resulting in a series of volcanoes and geothermal features along the Apennine mountain range. Key volcanoes in the arc include Mount Etna, Stromboli, and Vesuvius, which are known for their explosive eruptions and significant historical impacts. The region is also characterized by hot springs and fumaroles, showcasing the ongoing geological activity associated with the tectonic movements in the area.