Which Italian volcanoes are associated with faults along the western side of the Apennines?

Large faults that developed along the western side of the Apennines over the past million years have facilitated significant volcanic activity, resulting in a chain of volcanoes extending from Tuscany to Sicily.1

The volcanoes associated with these faults include:

• Extinct volcanoes: These include Mount Amiata in Tuscany, Mount Cimino, the Alban Hills near Rome, and the Ponza Islands.1
• Active volcanoes: To the south, this chain includes Mount Vesuvius, the Eolie Islands, and Mount Etna.1

This volcanic activity is linked to crustal thinning that began approximately 10 million years ago, which also contributed to the formation of the Tyrrhenian Sea.1