Volcanoes of Java Climb some of its most interesting and active volcanoes of Java: Papandayan and Galunggung, Merapi in Central Java, Kelud, Semeru, Bromo, the Tengger caldera, and Ijen.
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.
