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Semeru volcano
Stratovolcano 3676 m (12,060 ft)
East Java, Indonesia, -8.11°S / 112.92°E
Current status: erupting (4 out of 5)
Semeru webcams / live data | Reports
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Semeru volcano eruptions:
1818, 1829, 1830, 1832, 1836, 1838, 1842, 1844, 1845, 1848, 1849(?), 1851, 1856, 1857, 1865, 1866(?), 1887, 1887, 1888, 1889-91, 1892, 1893, 1893-94, 1895, 1896, 1897, 1899, 1899, 1900, 1901, 1903, 1904, 1905, 1907, 1908, 1909-10, 1910-11, 1911, 1912, 1913, 1941-42, 1945, 1946, 1946-47, 1950-64, 1967-ongoing
Typical eruption style:
Explosive. Near constant strombolian activity, occasionally stronger explosions, lava flows and pyroclastic flows.
Last earthquakes nearby
Semeru volcano tours
From Krakatau to Bali (16-days study and photo tour to Java, Indonesia)
Volcanoes of Java (17-days walking and trekking tour on Java)
Volcanoes of East Java (4-5 days walking tour to Bromo, Semeru and Ijen)
Bromo, Semeru, Ijen (trekking tour to Semeru, Bromo, Ijen volcanoes (East Java))

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Semeru volcano news & eruption updates

Semeru volcano (East-Java, Indonesia): continuing lava flow and small explosions

Wed, 1 Jun 2016, 15:24
15:24 PM | BY: T
View of Semeru's lava flow on the southern flank (PVMBG webcam)
View of Semeru's lava flow on the southern flank (PVMBG webcam)
The activity has not changed significantly for several months at Java's highest and most active volcano. The lava flow on the upper southern flank of the volcano remains active. Due to the steep incline, incandescent rockfalls from its side and front are relatively frequent.
This effusive activity is also accompanied by ongoing explosive activity: intermittent, small to moderate strombolian explosions from the summit vent.
While these explosions have been occurring relatively frequently, their average size has been much smaller than several years ago, when the volcano's typical activity had been best characterized by vulcanian-type explosions, a few daily strong blasts generating ash columns rising up to a few km (with no or little effusive activity on the other hand). This difference could be explained by a change towards less viscous lava being erupted recently, allowing for easier degassing and effusive activity.
Previous news
Sun, 14 Feb 2016, 09:57
A pyroclastic flow (hot avalanche of fragmented volcanic material) occurred on the volcano's southern side yesterday morning, reaching 4.5 km length and producing an ash plume that rose to 26,000 ft (8 km) altitude. Darwin VAAC raised the aviation color code to RED. ... read all
Mon, 9 Nov 2015, 16:58
The active lava dome inside Semeru's crater in early Nov 2015 (image: Andi / VolcanoDiscovery Indonesia)
The lava dome inside the summit crater continues to grow slowly. Andi climbed the volcano a few days ago and observed continuous degassing, sometimes followed by minor explosions. ... read all
Thu, 8 Oct 2015, 11:05
PVMBG reported that during August-29 September both white plumes and gray-to-brownish plumes from Semeru were observed rising as high as 600 m above the crater and drifting in multiple directions; inclement weather sometimes prevented observations. read all
Mon, 15 Jun 2015, 11:05
Eruption from Semeru on 11 June 2015 (photo: Aris Yanto)
Japa's highest volcano has resumed its typical, intermittent ash-righ explosions. read all
Wed, 26 Nov 2014, 09:55
The active lava dome of Semeru in late Nov 2014 (photo: Andi / VolcanoDiscovery Indonesia)
A recent visit at the summit of the volcano by our expedition leader Andi and Markus confirmed that "Semeru's lava dome is growing bigger and wider, and now has a diameter of 100-200 m. ... read all

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