A type of highly viscous magma with high silica content; it is found as pumice (in airfall deposits or ignimbrites), lava or obsidian. Rhyolite is also the name given to the volcanic rock formed from rhyolitic magma.
Popocatépetl Volcano Special The activity of Mexico's most active and largest volcano has been picking up gradually during the past months. If you like to join a small group of volcano enthusiasts, join us, stay 5 nights near the volcano and move around for extended day- and night-time observation.
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!
Recent volcano satellite images Browse quickly through the latest satellite imagery from volcanoes all over the world in order to spot ash clouds and hot spots.
Krakatau volcano photos Hundreds of photos from active Krakatau volcano in the Sunda Strait, Indonesia. Most of them taken during our various expeditions to this fascinating volcano.
