Stratovolcano 3676 m (12,060 ft)
East Java, Indonesia, -8.11°S / 112.92°E
Semeru webcams / live dataSemeru volcano videos
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 (as of 2014)
Typical eruption style:
Explosive. Near constant strombolian activity, occasionally stronger explosions, lava flows and pyroclastic flows.
Last earthquakes nearby
Semeru volcano news & eruption updates
Wed, 26 Nov 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. ...more
Sun, 21 Sep 10:02
Strombolian activity in Semeru seen in mid Sep 2014 (photo: Andi / VolcanoDiscovery)
Our recent tour group on Java observed mild ongoing strombolian activity in the volcano's summit crater. ...more
Fri, 12 Sep 13:06
Steam plume and the lava flow (dark tongue) from Semeru this morning
The slow extrusion of a lava flow from the summit crater continues and forms a dark tongue extending a few 100 meters. Rockfalls detaching from it roll frequently down the Kembar ravine on the southern flank. ...more
Wed, 23 Jul 14:15
Glow from Semeru's summit at night (VSI webcam)
Activity, weak during the past months, seems to have picked up. A new lava flow has started to slowly descend the southeastern slope. ...more
Fri, 18 Oct 13:02
A pilot observed a small ash eruption this morning. The volcano had recently been very calm, but this could be a sign it is getting more active again.
Wed, 25 Jul 07:58
The active lava dome inside Semeru's summit crater as seen on 19 July (Photo: Andi / VolcanoDiscovery)
The lava dome of Semeru volcano, East Java, is active and growing slowly our recent expedition group observed on 18-19 July during our trekking tour Volcanoes of Java
Tue, 8 May 10:05
CVGHM reported that during 1-29 February multiple pyroclastic flows from Semeru traveled 500 and 2,500 m into the Besuk Kembar and Besuk Kobokan rivers (on the S flank), respectively. During 1 February-30 April dense gray-to-white plumes rose 100-500 m above Jongring Seloko crater and drifted W and N. Incandescence was visible up to 50 m above the crater during 1 February-31 March. Seismicity decreased from March to April. Observations indicated that the lava dome grew in April. On 2 May CVGHM lowered the Alert Level to 2 (on a scale of 1-4) and reminded the public not to approach the crater within a 4-km radius. ...more
Thu, 29 Mar 10:05
Our expedition leader Doni just returned from a visit to Semeru and reports that on 27 March, he and our group observed frequent explosions every few minutes, with many powerful enough to eject glowing bombs to produce small glowing avalanches down on the southern flank of the volcano.
Mon, 6 Feb 11:30
A slight increase in activity of Semeru volcano's activity has been observed by the Indonesian Geological Survey in recent weeks and its alert level was raised to 3 (out of 4, "watch") on 3 February 2012, after it had been on level 2 since 16 July 2009. ...more
Thu, 15 Sep 06:43
View of Semeru's crater with a lava dome on 1 Sep 2011
Our group traveling in East Java just returned from a visit to Semeru volcano and sends the following report: an active lava dome is growing inside the crater and there are 3-4 eruptions per day, and it seems that the size and frequency is increasing in the past days.
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More on VolcanoDiscovery:
: A third tectonic setting where volcanism occurs is believed to be the result of mantle plumes and not directly related to plate boundaries. So called hot spot volcanoes fall into this category.