Compare the view before a pyroclastic flow descends (this image) and the next... (Photo: Tom Pfeiffer)
Piu su VolcanoDiscovery
: Lists and maps of earthquakes in the world in near real time. Country lists, earthquake archive, and I-felt-it reports.
Active volcanoes map
: Check which volcanoes are currently active (erupting). Our daily updated maps give a quick overview.
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.