Gede and Salak, high-risk volcanoes in West Java, are representative of many arc volcanoes that exhibit only minor visible degassing and yet exhibit seismic swarms (Gede) and thermal features (Salak) that suggest recent magma and gas input from depth. Major cities Bogor, Sukabumi and Cianjur are located less than 20 km away, and Jakarta, the capital of Indonesia, is within a distance of only 60 km. The last eruption from Gede was in 1957, and its historical activity consists typically of small and short explosive eruptions.
In the spectrum of open to plugged conduits, Gede is intermediate and Salak appears to be plugged. The research team studies past magmatic and eruptive processes and upgrades geophysical, geochemical, and hydrologic monitoring to anticipate the next eruption of either volcano.
- Earth Observatory of Singapore
2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019