Report on Tangkuban Parahu (Indonesia) — 20 February-26 February 2013
Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 20 February-26 February 2013
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2013. Report on Tangkuban Parahu (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 20 February-26 February 2013. Smithsonian Institution and US Geological Survey.
6.77°S, 107.6°E; summit elev. 2084 m
All times are local (unless otherwise noted)
CVGHM reported that on 21 February tremor increased at Tangkubanparahu and diffuse ash emissions rose from Ratu Crater. Based on the seismicity, visual observations, and temperature increases of the land around the crater, the Alert Level was raised to 2 (on a scale of 1-4) and visitors were reminded not to approach the crater within a radius of 1.5 km.
Geologic Background. Gunung Tangkuban Parahu is a broad shield-like stratovolcano overlooking Indonesia's former capital city of Bandung. The volcano was constructed within the 6 x 8 km Pleistocene Sunda caldera, which formed about 190,000 years ago. The volcano's low profile is the subject of legends referring to the mountain of the "upturned boat." The Sunda caldera rim forms a prominent ridge on the western side; elsewhere the rim is largely buried by deposits of the current volcano. The dominantly small phreatic eruptions recorded since the 19th century have originated from several nested craters within an elliptical 1 x 1.5 km summit depression.