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Divergent plate boundaries in oceans Two ocean plates move apart from each other. Hot upwelling mantle material forms magmas that continuously produce new oceanic crust. An ocean widens.
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.
Kelut volcano's lava dome in 2007 One of the most impressive lava dome eruptions in recent years. A new dome formed in the crater lake of Kelut volcano (East Java) in late 2007. Enjoy some unique pictures.