Knowra Mount Merapi Mount Merapi Mount Merapi is an active stratovolcano in Central Java, Indonesia, near Yogyakarta. Frequent eruptions produce lava domes, ash, and deadly pyroclastic flows.
Pyroclastic flow : A fast-moving, ground-hugging current of hot gas, ash, and volcanic rock. Collapsing Merapi lava domes generate these destructive currents down the volcano’s slopes.
2010 eruptions of Mount Merapi : A major explosive eruption sequence at Mount Merapi in Indonesia during October and November 2010. The sequence produced widespread pyroclastic flows and prompted large-scale evacuations.
Mbah Maridjan : A Javanese spiritual caretaker of Mount Merapi who died during the 2010 eruption. His refusal to evacuate became a prominent example of the personal and cultural stakes of warnings.
Volcanic hazard map : A map showing areas exposed to specified volcanic hazards and their expected reach. Merapi’s maps identify valleys and settlements threatened by flows and ash.
Kraton Ngayogyakarta Hadiningrat : The royal palace complex of Yogyakarta, Indonesia, and the seat of its sultanate. Javanese cosmology connects the palace, the Indian Ocean, and Merapi in a symbolic landscape.
Lava dome : A steep-sided mound formed when viscous lava accumulates around a volcanic vent. Dome growth and collapse are central to Merapi’s frequent explosive activity.
2006 eruptions of Mount Merapi : A 2006 eruptive episode at Mount Merapi marked by dome growth and pyroclastic flows. A major flow struck during evacuation, exposing the danger of relying on hazard zones alone.
Surono : An Indonesian volcanologist who led the Center for Volcanology and Geological Hazard Mitigation. He became a prominent public voice explaining Merapi’s escalating activity in 2010.
Volcanic alert level : A graded public designation of a volcano’s activity and associated hazard response. Merapi alert levels help authorities decide when to restrict access or evacuate.
Javanese cosmology : A set of Javanese ideas about the ordered relationship among people, nature, and spiritual forces. It gives Merapi significance beyond its physical hazards and geological activity.
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