The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Zoom onto the upper part of Mayon, where the active lava flow can be seen splitting into 3 flows (the eastern one into the Basud gully is hidden behind the ridge on the upper flank right below the crater, visible by the glow) (Photo: Tom Pfeiffer)
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.
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