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Seulawah Agam volcano

Stratovolcano 1810 m / 5,938 ft
Sumatra, Indonesia, 5.45°N / 95.66°E
Current status: normal or dormant (1 out of 5) | Reports
Seulawah Agam volcano books
Last update: 8 Jan 2013 (Alert Level raised for Seulawah Agam, Indonesia)
Typical eruption style: sin especificar
Erupciones del volcán Seulawah Agam: 1839
Fecha / HoraRevista / ProfundidadDistanciaUbicación
Thu, 20 Dec
Thu, 20 Dec 21:12 UTCM 4.4 / 41.9 km15 km- 24km NW of Sigli, Indonesia
Thu, 20 Dec 20:23 UTCM 3.9 / 10 km2 kmNORTHERN SUMATRA, INDONESIA
Seulawah Agam is an active stratovolcano at the northwestern tip of Sumatra. It was built within the older lam Teuba caldera. It has a 400 m wide forested summit crater and a crater at 650 m on the NNE flank, the Van Heutsz crater, which has active fumaroles. The last activity of Seulawah Agam was probably a phreatic or hydrothermal explosion in 1839 from the van Heutsz crater.

Background:

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.
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Smithsonian / GVP volcano information


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