The compound Belerang-Beriti volcano rises above the Semalako Plain in SW Sumatra, forming a NW-SE-trending massif that contains a 1.2-km-wide crater breached to the NE. [
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Gunung Besar is a 1899-m-high volcano in SE Sumatra with a minor sulfur deposit in its crater. [
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Located in a sparsely populated region of Sumatra, Bukit Daun forms a twin volcano with Gedang volcano. [
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Bukit Lumut Balai is a heavily eroded volcano consisting of three eruption centers, two on Bukit Lumut and one on the NE side of Bukit Balai, 5 km to the east. Large lava flows occur on the north side of Bukit Balai. [
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(Stratovolcano 3173 m (10,410 ft))
Dempo is a prominent 3173-m-high stratovolcano that rises above the Pasumah Plain of SE Sumatra. [
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(Stratovolcano 2885 m (9,465 ft))
The massive Bur ni Geureudong volcanic complex, one of the largest in northern Sumatra, consists of the two adjacent volcanoes of Bur ni Geureudong and Bur ni Telong. [
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Helatoba-Tarutung, located in northern Sumatra south of Lake Toba, is a group of sulfurous hot springs along a 40-km-long, NNW-SSE-trending stretch of the Renun-Toru fault zone. [
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Hulubelu is an elliptical, 4-km-long caldera or volcano-tectonic depression in SE Sumatra. [
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(stratovolcano, caldera 2021 m)
Huatapanjang stratovolcano, located to the NW of Sumbing volcano, is classified as active by Rock et al. (1982) and Posavec et al. (1973), with no additional information. Little is known of this central Sumatran volcano. It is not sure if the 2009 6.8 R earthquake was connected t... [
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Imun is a single small dacitic and/or rhyolitic cone south of Lake Toba with a youthful, undissected morphology, and is considered to be of late-Pleistocene or Holocene age (Aldiss et al., 1983). Source: Smithsonian GVP [
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(Stratovolcano 1952 m (6,404 ft))
Kaba, a twin volcano with Mount Hitam, has an elongated summit crater complex dominated by three large historically active craters trending ENE from the summit to the upper NE flank. [
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The Gayolesten fumarole field is located on the flanks of the Pleistocene Gunung Kembar volcano. [
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(Stratovolcano 3800 m / 12,467 ft)
The 3800-m-high Gunung Kerinci in central Sumatra is Indonesia's highest volcano and one of the most active in Sumatra. [
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(stratovolcano, lava dome 1862 m)
Lubukraya is a well-defined andesitic stratovolcano of latest Pleistocene to possibly Holocene age with a broad crater breached to the south and a prominent lava dome at the southern foot of the volcano (Aspden et al. 1982). [
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(Stratovolcano 2891 m (9,485 ft))
Gunung Marapi (not to be confused with the better-known Merapi volcano on Java) is Sumatra's most active volcano. [
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Patah is a heavily forested, dissected Quaternary volcano SE of Dempo volcano. [
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Pendan is a little-known volcano in central Sumatra that is listed as an active volcanic center by Rock et al. (1982) and Posavec et al. (1973), with no additional information. Source: Smithsonian GVP [
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(Complex volcano 2801 m / 9,190 ft)
Peuet Sague is a large volcanic complex that rises to 2801 m in NW Sumatra. [
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Rajabasa is a prominent, isolated volcano along the Sunda Strait at the SE-most tip of Sumatra. [
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(stratovolcano, caldera 1880 m)
Ranau is an 8 x 13 km caldera volcano in southern Sumatra partially filled by the crescent-shaped Lake Ranau. Gunung Semuning is a potentially still active stratovolcano constructed at the SE side of the caldera. [
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The Sarik volcanic andesitic/basaltic center consists of two young cones with vegetated, but uneroded surfaces. [
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Sekincau volcano was constructed near the southern rim of the small NW-SE-trending double Belirang and Balak calderas, 2 and 2.5 km wide, respectively. [
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(Stratovolcano 1810 m / 5,938 ft)
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... [
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Sibayak volcano belongs to the Singkut caldera in northern Sumatra. It represents one of several cones that grew on or near the southern caldera rim after its formation. [
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Sibualbuali is an eroded Pleistocene stratovolcano with two solfatara fields on the eastern flank. [
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(Stratovolcano 2460 m (8,071 ft))
Sinabung volcano in July 2015
Sinabung is a typical stratovolcano in northern Sumatra next to the town of Berastagi. [
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(Stratovolcano 2145 m (7,037 ft))
Sorikmarapi is a forested stratovolcano with a 600-m-wide summit crater containing a crater lake and substantial sulfur deposits. [
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(Stratovolcano 2507 m (8,225 ft))
Smaller than its prominent namesake on Java, Sumatra's Sumbing volcano has a complicated summit region containing several crater remnants and a 180-m-long crater lake. [
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The 8 x 16 km Suoh depression appears to be primarily of tectonic origin, but contains historically active maars and silicic lava domes along its margins. [
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Talakmau (also known as Talamau) is a massive compound volcano rising above the western coastal plain of Sumatra. [
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(Stratovolcano 2597 m / 8,520 ft)
Talang, which forms a twin volcano with the extinct Pasar Arbaa volcano, has two crater lakes on its flanks. [
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(Stratovolcano 2438 m (7,999 ft))
Tandikat and its twin volcano to the NNE, Singgalang, lie across the Bukittinggi plain from Marapi volcano. [
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(stratovolcano 2617 m / 8,586 ft)
Telong (or Bur ni Telong) volcano is a conical stratovolcano built at the southern base of the massive Bur ni Geureudong volcanic complex, one of the largest in northern Sumatra. The historically active volcano lies 4.5 km from the summit of Geureudong, and its summit crater has ... [
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(Caldera 2157 m (7,077 ft))
Toba volcano has produced the largest known volcanic eruption on earth during the past 2 million years. [
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