Volcanic Eruption in Yellowstone Caldera, Yellowstone National Park, Wyoming | Er

Opinions on Us on Instagram: "If the worst fears of Napolitanos were to come true, the area surrounding Naples might look something like this. Campi Flegrei is a large, active volcanic caldera. Unlike a typical mountain volcano like the nearby Mount Vesuvius, it is a vast, sunken volcanic field with a diameter of about 13 kilometers, much of which lies beneath the city of Naples and the Gulf of Pozzuoli. With their close proximity to the 908,082 inhabitants of Naples, these volcanoes regarded as