Sinabung volcano (Sumatra): eruption news and activity updates
Sinabung volcano (Sumatra) - first pyroclastic flows from lava dome
Monday Dec 30, 2013 16:24 PM | BY: T
The growing lava dome has started to produce (extremely dangerous) pyroclastic flows, as parts of the unstable mass of the viscous lava have now overtopped the crater the dome had been growing inside.
Pyroclastic flow from Sinabung this evening (photo: #D_Lingga / Twitter)
The first series of 3 flows apparently took place this morning at dawn on the southeast slope and reached up to 1.5 km length. More pyroclastic flows occurred at 17:22 and 18:36 local time, reaching maximum run-out lengths of approx. 2.5 km.
Valleys radiating from the volcano should be avoided at all times in distances up to many kilometers. During Merapi's deadly eruption in 2010, some flows reached lengths of over 20 km.
Links / Sources:
Links / Sources:
Saturday, Dec 28, 2013
VSI confirmed that a new lava dome (a mass of viscous magma accumulating at the vent) has made its appearance on the northern crater of the volcano. It had a height of 56 meters and diameter of 105 meters on 26 Dec. Its volume was estimated to about 1 million cu meters, and the growth rate at 3.5 m3/second. ... read all
Friday, Dec 27, 2013
The volcano has been relatively calm and only produced a steam plume sometimes mixed with ash, but no new significant explosions. Local media talk about a new lava dome spotted at the summit, but evidence (weak red glow at night and blurred photos etc) is still very weak and should be confirmed. read all
Tuesday, Dec 24, 2013
Activity has been low at the volcano, but occasional small explosions and ash emissions still occur. VAAC Darwin reported an ash plume at 10,000 ft (3 km) yesterday and maintains Aviation Color Code RED, as the chance of a sudden larger explosion remains high. ... read all
Tuesday, Dec 17, 2013
The Indonesian Volcanological Survey (VSI) informed in its latest press release that a significant increase in seismic activity was detected during the past days. ... read all
Thursday, Dec 12, 2013
No ash emissions have been detected during the past 48 hours, the crater shows only a degassing plume, but alert level remains at red, because new explosions could occur any time. The government has extended the emergency status until at least 21 December, which implies that the more than 17,000 evacuees remain in the total of 31 shelters. Their situation is difficult, with help needed in form of food, water, medicines and sanitary supplies. read all