Geureudong
| Geureudong | |
|---|---|
 Geureudong Mountain | |
| Highest point | |
| Elevation | 2,885 m (9,465 ft)[1] |
| Listing | Ultra Ribu |
| Coordinates | 4°48′47″N 96°49′12″E / 4.813°N 96.82°E |
| Geography | |
 | |
| Location | Bener Meriah Regency, Aceh, Sumatra, Indonesia |
| Geology | |
| Rock age | Pleistocene |
| Stratovolcanic complex | |
| Volcanic arc | Sunda Arc |
| Last eruption | 1937 |
Geureudong, also known as Bur ni Geureudong or Bur ni Telong, is a stratovolcanic complex in northern Sumatra, Indonesia. It is located in Bener Meriah Regency, Aceh province, and is one of the largest volcanic complexes in northwestern Sumatra.[1] The complex consists of two main adjacent volcanoes: Bur ni Geureudong and Bur ni Telong, along with several smaller volcanic cones.[2]
The official name of the whole complex is confusing between the two adjacent volcanoes: Bur ni Geureudong and Bur ni Telong. Two other volcanic cones are Salah Nama and Pepanji, and there are small sediment hills.[3]
Geography
[edit]Geureudong is situated in the highlands of central Aceh, within Bener Meriah Regency. The complex covers an area approximately 30 km in width and rises above schists and granitic rocks.[1] The highest point of the complex is Bur ni Geureudong, with an elevation of 2,885 metres (9,465 ft) above sea level.[1] The historically active cone, Bur ni Telong, reaches 2,624 metres (8,609 ft) and is located on the southern flank of the main edifice.[2]
The region is sparsely populated, with agricultural activities in the surrounding valleys. The nearest major town is Redelong, the capital of Bener Meriah Regency.
Volcanic complex
[edit]The Geureudong complex is a massive, 30-km-wide volcanic system that is one of the largest in northwestern Sumatra.[1] The complex comprises two principal volcanoes:
Bur ni Geureudong
[edit]Bur ni Geureudong is the older and taller of the two main volcanoes, with a summit elevation of 2,885 metres (9,465 ft). It is Pleistocene in age and has been significantly eroded over time.[1] Despite its age, the volcano still exhibits signs of geothermal activity, including solfataras and hot springs on its northern and southern flanks.[1]
Bur ni Telong
[edit]Bur ni Telong is the historically active volcano of the complex, constructed on the southern flank of Bur ni Geureudong, approximately 4.5 km from its summit.[2] It has a height of 2,624 metres (8,609 ft).[2] The summit crater has migrated to the east-southeast over time, leaving arcuate crater rims.[2] Lava flows are exposed on the southern flank of the volcano.[1]
Other features
[edit]Two other volcanic cones are present in the complex: Salah Nama and Pepanji (also spelled Pupandji).[1] The Pupandji pyroclastic cone was constructed on the southeastern flank of Bur ni Geureudong, adjacent to two maars with diameters of 300 and 60 metres.[1] There are also small sediment hills in the area.[4]
Eruptive history
[edit]Bur ni Telong has been historically active, with explosive eruptions recorded during the 19th and 20th centuries.[2] Documented eruptions occurred in 1837, 1839, 1856, 1919, 1924 (uncertain), and 1937.[2] The last confirmed eruption was in 1937.[2]
There is no record of Holocene eruptions from the larger Bur ni Geureudong edifice, which is considered Pleistocene in age.[1]
In recent years, Bur ni Telong has shown signs of unrest. In December 2025, authorities raised the alert level for Bur ni Telong to Level II (Waspada, or "Advisory") following a series of increased activity and volcanic earthquakes, triggered by a tectonic earthquake of magnitude 4.3.[5][6] The alert level remained at Level II as of mid-2026, though the hazard radius was later reduced.[7]
Geothermal potential
[edit]The Geureudong volcanic complex has been identified as a potential area for geothermal energy development.[8] The presence of hot springs and solfataras indicates a significant geothermal system beneath the complex. Studies have been conducted to assess the geothermal potential of the area, which could serve as a renewable energy source for the region.[9]
See also
[edit]
References
[edit]- 1 2 3 4 5 6 7 8 9 10 11 "Geureudong". Global Volcanism Program. Smithsonian Institution. Retrieved 2006-12-08.
- 1 2 3 4 5 6 7 8 "Geureudong Volcano". Volcano Discovery. Retrieved 2026-08-07.
- ↑ "Geology of Bur Ni Telong". Volcanological Survey of Indonesia. Archived from the original on 2007-09-27. Retrieved 2006-12-08.
- ↑ "Geology of Bur Ni Telong". Volcanological Survey of Indonesia. Archived from the original on 2007-09-27. Retrieved 2006-12-08.
- ↑ "Indonesia raises alert for the Mount Bur Ni Telong volcano following a spike of activity". Associated Press. 2025-12-31. Retrieved 2026-08-07.
- ↑ "Dipicu gempa, Status Gunung Bur Ni Telong Aceh menjadi Waspada". ANTARA News Aceh. 2026-06-29. Retrieved 2026-08-07.
- ↑ "Badan Geologi turunkan radius rekomendasi aman Gunung Bur Ni Telong". ANTARA News. 2026-06-03. Retrieved 2026-08-07.
- ↑ Putri, D. R.; Ismail, N.; Idroes, R. (2023). "Geochemical Investigation of Hot Springs in the Bur Ni Geureudong Geothermal Prospect Area, Aceh-Indonesia". Rasayan Journal of Chemistry. 16 (3): 1826. doi:10.31788/RJC.2023.1638430.
- ↑ Putri, D. R.; Hutapea, A. B. C.; Ismail, N. (2016). Gravity Studies On Bur Ni Geureudong Geothermal Area.
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