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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.
Types of tours We offer a broad variety of tours to volcanic areas: volcano expeditions and specials, discovery tours with hiking, photography, nature and culture, pilot tours and private custom tours.
Glossary of geologic terms A growing list of often illustrated explanations and definitions of geological terms and keywords, with focus on volcanology and seismology.
Sakurajima volcano photos One of the world's most active volcanoes, Sakurajima on Japan's Kyushu Island is famous for its frequent vulcanian explosions, often accompanied by eruption lightning.