Gede and Salak, high-risk volcanoes in West Java, are representative of many arc volcanoes.
In 2010 the Merapi experienced a dome collapse, which generated powerful pyroclastic flows.
In June 2006, after several months of unrest, several pyroclastic flows rushed down the southern slopes of the Merapi.
Merbabu stratovolcano, view from the north face of the Merapi. Merbabu's last eruption occurred in 1797.
Sumbing and Sundoro stratovolcanoes, view from the north face of the Merapi. Sumbing erupted for the last time during the 18th century, and Sundoro in 1971.
Lahars are mudflows rushing down the slopes of volcanoes. They are caused by the remobilization of ashes during rainfalls on recent volcanic deposits.
The Merapi Volcano Observatory is a facility of the Centre of Volcanology and Geological Hazard Mitigation in Yogyakarta, Indone
Merapi volcano is located near the city of Yogyakarta, central Java. This stratovolcano is one of the most active volcanoes in Indonesia.
Salak volcano is located in western Java, Indonesia. It is one of EOS Lab Volcanoes.
View of the Gede volcano's crater, western Java, Indonesia. Gede is one of EOS Lab Volcanoes.