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.
Kilauea volcano photos The most active volcano in the world with a record long lasting eruption since 1983: images of lava flows, lava lakes, explosions, lava meeting the ocean, aerials and more.
Gorely volcano photos Gorely is a young and very active shield volcano in southern Kamchatka. It is one of Kamchatka's easiest volcanoes to climb and offers stunning views into vast craters and the surrounding landscape.