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Report on Dieng Volcanic Complex (Indonesia) — 6 August-12 August 2014


Dieng Volcanic Complex

Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 6 August-12 August 2014
Managing Editor: Sally Sennert.

Please cite this report as:

Global Volcanism Program, 2014. Report on Dieng Volcanic Complex (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 6 August-12 August 2014. Smithsonian Institution and US Geological Survey.

Weekly Report (6 August-12 August 2014)

Dieng Volcanic Complex

Indonesia

7.2°S, 109.879°E; summit elev. 2565 m

All times are local (unless otherwise noted)


PVMBG noted that due to decreased activity and no observable flow of gas in high concentrations from the crater the Alert Level for Dieng was lowered to 1 (on a scale of 1-4) on 11 August. Residents and visitors were advised to not enter the crater and to be vigilant if excavating to depths greater than 1 m around the crater.

Geological Summary. The Dieng plateau in the highlands of central Java is renowned both for the variety of its volcanic scenery and as a sacred area housing Java's oldest Hindu temples, dating back to the 9th century CE. The Dieng Volcanic Complex consists of multiple stratovolcanoes and more than 20 small Pleistocene-to-Holocene craters and cones over a 6 x 14 km area. Prahu stratovolcano was truncated by a large Pleistocene caldera, which was subsequently filled by a series of cones, lava domes, and craters, many containing lakes. Lava flows cover much of the plateau, but observed activity has been restricted to minor phreatic eruptions. Gas emissions are a hazard at several craters and have caused fatalities. There are abundant thermal features and high heat flow across the area.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)