Semeru volcano (East Java, Indonesia) activity update: growing lava dome and ash explosions

Wed, 25 Jul 2012, 07:58
07:58 AM | BY: T
The active lava dome inside Semeru's summit crater as seen on 19 July (Photo: Andi / VolcanoDiscovery)
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.
There is an area of incandescence visible at the SW part of the dome inside the half-open summit crater, and it is producing regular small to moderate ash explosions. Ash venting and small explosions had resumed in 2011.

Previous news

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
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