Volcanic Ash Advisory Centres Much current eruption news is provided by the 9 Volcanic Ash Advisory Centres (VAAC) distributed around the globe. The VAACs provide a vital service for aviation safety.
Introduction to Plate Tectonics The Earth's upper, rigid layer is broken into several plates which are in constant motion to one another. Most earthquakes and volcanoes occur as result of these plate boundaries.
From Stromboli to Etna Get to know some of the most active and interesting volcanoes in the world: famous Mt. Etna on Sicily; Vulcano, in the Ancients'belief home to Vulcanus, God of Fire; Lipari with its spectacular obsidian and pumice deposits; and Stromboli, "Lighthouse of the Tyrrhenian Sea", known for its permanent fireworks!