Seulawah Agam

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  • Indonesia
  • Sumatra
  • Stratovolcano
  • 1839 CE
  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 5.448°N
  • 95.658°E

  • 1810 m
    5937 ft

  • 261020
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

2 January-8 January 2013

CVGHM reported that seismicity at Seulawah Agam increased during 27 December-2 January. Visual observations were prevented due to fog, although on 2 January scientists observed a new solfatara that produced roaring noises and was within 20 m of van Heutsz Crater on the NNE flank. The Alert Level was raised to 2 (on a scale of 1-4) on 3 January.

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



 Available Weekly Reports


2013: January
2011: July
2010: September


2 January-8 January 2013

CVGHM reported that seismicity at Seulawah Agam increased during 27 December-2 January. Visual observations were prevented due to fog, although on 2 January scientists observed a new solfatara that produced roaring noises and was within 20 m of van Heutsz Crater on the NNE flank. The Alert Level was raised to 2 (on a scale of 1-4) on 3 January.

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


13 July-19 July 2011

CVGHM reported that during October 2010-July 2011 activity at Seulawah Agam decreased. Measurements indicated that seismicity decreased, water temperature decreased and pH levels were stable, gas emissions were lower, and no significant surface changes were observed. The Alert Level was lowered to 1 (on a scale of 1-4) on 11 July.

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


1 September-7 September 2010

CVGHM reported that although seismicity from Seulawah Agam fluctuated during April to August 2010, the data reflected increased activity overall. On 1 September, CVGHM raised the Alert Level to 2 (on a scale of 1-4) and restricted visitors from approaching the crater within a 3-km radius.

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


Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1839 Jan 12 1839 Jan 13 Confirmed 2 Historical Observations NNE flank (van Heutsz crater)
1510 ± 10 years Unknown Confirmed 2 Historical Observations NNE flank

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Bennett J D, Bridge D M, Cameron N R, Djunuddin A, Ghazali S A, Jeffery D H, Keats W, Rock N M S, Thompson S J, Whandoyo R, 1981. Geologic map of the Banda Aceh quadrangle, North Sumatra. Geol Res Devel Centre Indonesia, 1:250,000 scale.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Neumann van Padang M, 1951. Indonesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 1: 1-271.

Rock N M S, Syah H H, Davis A E, Hutchison D, Styles M T, Lena R, 1982. Permian to Recent volcanism in northern Sumatra, Indonesia: a preliminary study of its distribution, chemistry, and peculiarities. Bull Volc, 45: 127-152.

Sapper K, 1927. Vulkankunde. Stuttgart: J Engelhorns Nachf, 424 p.

Sudradjat A, 1977. . (pers. comm.).

Seulawah Agam at the NW tip of Sumatra is an extensively forested volcano of Pleistocene-Holocene age constructed within the large Pleistocene Lam Teuba caldera. A smaller 8 x 6 km caldera lies within Lam Teuba caldera. The summit contains a forested, 400-m-wide crater. The active van Heutsz crater, located at 650 m on the NNE flank of Suelawah Agam, is one of several areas containing active fumarole fields. Sapper (1927) and the Catalog of Active Volcanoes of the World (CAVW) reported an explosive eruption in the early 16th century, and the CAVW also listed an eruption from the van Heutsz crater in 1839. Rock et al. (1982) found no evidence for historical eruptions. However the Volcanological Survey of Indonesia noted that although no historical eruptions have occurred from the main cone, the reported NNE-flank explosive activity may have been hydrothermal and not have involved new magmatic activity.