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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 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.

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))

Semeru volcano (East Java): continuing slow lava flow extrusion

Fri, 12 Sep 2014, 13:06
13:06 PM | BY: T
Steam plume and the lava flow (dark tongue) from Semeru this morning
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.
On contrast, the previously typical intermittent strombolian ash explosions of the volcano, in continuous activity since 1976, have been almost absent during the past months.

Previous news

Wed, 23 Jul 2014, 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. ... read all
Fri, 18 Oct 2013, 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. ... read all
Wed, 25 Jul 2012, 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. read all
Tue, 8 May 2012, 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. read all
Thu, 29 Mar 2012, 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. ... read all

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