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Sinabung volcano
Stratovolcano 2460 m (8,071 ft)
Sumatra, Indonesia, 3.17°N / 98.39°E
Current status: restless (2 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): strong SO2 degassing suggests more eruptions likely

Friday Jan 17, 2014 07:54 AM | BY: T

Intense steaming from Sinabung this morning (VSI webcam)
Intense steaming from Sinabung this morning (VSI webcam)
SO2 plume from Sinabung yesterday morning (GOME / NASA)
SO2 plume from Sinabung yesterday morning (GOME / NASA)
Activity remains elevated although pyroclastic flows seem to have become less frequent over the past 24 hours.
This could be due to several possibilities or a combination of them:
- major parts of the dome have collapsed during the powerful pyroclastic flows in recent days, resulting in a temporary absence of enough unstable material, but no real change in effusion rate
- a true decrease in effusion rate, or
- the formation of a solid plug that temporarily prevents the magma from moving out of the vent. The last scenario would significantly increase the risk of major explosions in the near future.
A strong SO2 plume was again detected yesterday on satellite data, which implies that there is a lot of new magma still arriving into the volcanic edifice, and most likely, more and potentially very dangerous eruptions will follow.
Previous news
Large pyroclastic flow from Sinabung volcano today around noon
Wednesday, Jan 15, 2014
The volcano's eruption continues at elevated levels similar to the past days. The growing lava dome produces frequent small to medium-sized pyroclastic flows, sometimes surpassing 5 km length (see the flow at 13:15-16 local time in the following time-lapse video of today's activity): ... [more]
The probably largest-so-far pyroclastic flow at Sinabung this morning
Tuesday, Jan 14, 2014
After a few days of deceiving calm, the eruption of the volcano intensified again today and produced the so-far largest pyroclastic flows, reaching probably more than 5-6 km in length, and associated ash plumes that rose to approx. 25,000 ft (8 km) altitude: ... [more]
Monday, Jan 13, 2014
The number of refugees to this day is as much as 25,810, from a total of 8,040 households, in 38 refugee camps. The lava dome seems to have decreased its activity, as no more significant pyroclastic flows occurred over the past 1-2 days. However, seismic activity remains high and it is too early to predict a near end of the eruption. It could even be a precursor to more violent explosive activity if the apparent calm at the moment is simply due to the fact that the degassing / effusion process in the past weeks has become inhibited by a plug of more viscous lava under which pressure is building up. ... [more]
Sunday, Jan 12, 2014
Activity at the volcano remains unchanged. Eruptions with frequent small to medium-sized pyroclastic flows (up to 4-5 km length) continue and more than 25,000 people are reported evacuated. Problems caused by the extensive damage to crops and structures, health and infrastructure problems caused by the ongoing crisis with ash everywhere are increasing. ... [more]
Pyroclastic flow at Sinabung this morning
Saturday, Jan 11, 2014
The volcano continues to be very active with viscous lava extruded at the new dome, which frequently collapses to form hot avalanches (pyroclastic flows) that generate ash plumes rising up to a few km. ... [more]

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