When individuals hear volcanoes, they tend to envision blazing eruptions blasting into the air. However, volcanoes can also collapse sideways, with their sides, or flanks, collapsing.

Located on the island of Sicily, in Italy, Mount Etna is one of the world's most active volcanoes. Documentation of its many ...

Etna, Europe's largest active volcano, is monitored closely due to its proximity to the city of Catania and several other ...