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Sinabung volcano
Stratovolcano 2460 m (8,071 ft)
Sumatra, Indonesia, 3.17°N / 98.39°E
Current status: minor activity or eruption warning (3 out of 5)
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Sinabung volcano eruptions:
2013-ongoing, 2010
Typical eruption style:
Explosive
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Sinabung volcano (Sumatra): eruption news and activity updates

Sinabung volcano (Sumatra, Indonesia): large pyroclastic flow by sudden lava flow collapse

Monday Jun 30, 2014 12:26 PM | BY: T
Indandescents blocks from the second lava lobe that produced the collapse yesterday (image of unknown date: ANTARA FOTO/Irsan Mulyadi via Liputan6)
Indandescents blocks from the second lava lobe that produced the collapse yesterday (image of unknown date: ANTARA FOTO/Irsan Mulyadi via Liputan6)
An unusually large collapse of parts of the still active lava flow occurred last night at around 19:30 local time and produced a large, dangerous pyroclastic flow that traveled approx. 4.5 km to the SE. There are no reports of injuries or fatalities, hopefully because no one was in the affected part of the exclusion zone. The flow had stopped in the immediate vicinity of the evacuated villages Berastapu and Sukanalu.
The collapse developed from the second lobe which has been active on the upper, steeper, and thus more prone to collapse, part of the slope on top of the older lobe. The pyroclastic flow also gave rise to an ash plume rising approx. 4 km.
So far, most collapses had been small, but this event shows that the volcano remains extremely dangerous.
There are still nearly 15,000 evacuated since since the start of the crisis last year. No new evacuations were ordered as consequence of the recent event.
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Links / Sources:
Previous news
Tuesday, May 27, 2014
Weak lava extrusion continues to add material to the viscous lava lobe, which at the same time looses some of its mass in occasional small rockfalls from its front and the sides. These sometimes result in small pyroclastic flows. ... read all
Friday, May 23, 2014
The possible ash plume from Sinabung and predicted trajectory (VAAC Darwin; MTSAT; annotations by @CultureVolcan / Twitter)
VAAC Darwin raised the Aviation Color Code to "Red" after a possible major ash plume was spotted on satellite imagery. According to the original report, a possible ash plume rose to estimated 50,000 ft (15 km) altitude 12:32 UTC on 22 May and drifted SW. The height was later reduced to 35,000 ft (12 km). read all
Thursday, May 15, 2014
Small pyroclastic flow at Sinabung on the morning of 13 May
Activity at the volcano remains weak. Slow lava extrusion continues along with occasional ash venting and small pyroclastic flows triggered by collapse of parts of the viscous lava lobe on the southern flank. ... read all
Monday, Apr 28, 2014
MODIS hot spots at Sinabung (MODVOLC, Univ. Hawaii)
The volcano continues to slowly aliment the large viscous lava lobe on the SE flank. Its growth is mainly manifested by numerous small to medium-sized rockfalls from its flanks and front, but also occasional pyroclastic flows that have reappeared since mid April. ... read all
Friday, Apr 18, 2014
Pyroclastic flow on Sinabung yesterday (photo: Firdaus Surbakti - facebook.com/firdaus.surbakti)
A pyroclastic flow occurred yesterday afternoon (17:40 WIB) at the volcano. Most likely, it was triggered by a partial collapse of the steep lava tongue that had been emplaced on its southern flank during the past months. read all

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