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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.
Eruption from close On 17 Oct, explosions were particularly violent at Anak Krakatau. We show a series of images of a spectacular explosion captured from close range by boat.
Tours to erupting volcanoes From time to time, we organize special tours to see volcanoes in eruption. These are often announced only few days or weeks in advance. Find out more!
Volcanoes in the Solar System The Earth is not the only place with volcanic activity. Active volcanism also occurs at at least 3 other bodies in our Solar System.