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Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Latest VAAC alerts The Volcanic Ash Advisory Centers provide near-real time global monitoring of volcanic ash plumes for aviation. Read the latest (or browse past) advisories.
Volcano Trip Guatemala is a country with spectacular volcanic activity, wonderful landscapes, colorful villages and towns, friendly people. Join a trip organized by an experienced Guatemalan guide and photographer Diego Rizzo together with VolcanoDiscovery to have a chance to watch the active volcanoes (Fuego and Pacaya) from up close! Get an in-depth experience of the powerful and turbulent natural processes at work and take stunning pictures!