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Sinabung volcano
Stratovolcano 2460 m (8,071 ft)
Sumatra, Indonesia, 3.17°N / 98.39°E
Current status: erupting (4 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) - eruption continues with no clear trend

Sunday Jan 19, 2014 10:20 AM | BY: T

Visual and seismic data ("Letusan"=explosions, "Guguran"= pyroclastic flows) for the past weeks (VSI)
Visual and seismic data ("Letusan"=explosions, "Guguran"= pyroclastic flows) for the past weeks (VSI)
NASA Earth Observatory image of Sinabung on 16 Jan, taken by Jesse Allen and Robert Simmon, using EO-1 ALI data from the NASA EO-1 team. Caption by Robert Simmon.
NASA Earth Observatory image of Sinabung on 16 Jan, taken by Jesse Allen and Robert Simmon, using EO-1 ALI data from the NASA EO-1 team. Caption by Robert Simmon.
Tilt data (VSI)
Tilt data (VSI)
Gas monitoring data
Gas monitoring data
Activity at the volcano has been a bit lower during the past days, especially when compared to the first half of the past week. It is certainly too early to say whether this is a sign of a possible approaching end of the of the eruption or just a temporary or perhapy only apparent decrease.
VSI has published a detailed report about their seismic and other monitoring data up up 17 Jan. It doesn't include the past days, but illustrates the marked peak in activity during 10-15 Jan. Deformation and other monitoring data have been limited by several stations having become non-operational because ash covering the solar panels and other technical difficulties in maintaining them.
However, the still working tiltmeter station Lau Kawar station at 1468 m elevation on the (so far little affected) northern slope of the mountain shows a strong inflation period between 10-14 Jan, which likely corresponds to the arrival of new magma from depth and with the observed increased pyroclastic flow activity during that time.
The latest available data from seismic, tilt, GPS, and gas monitoring show no clear trend during the latest few days still included in the published data.
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Links / Sources:
Previous news
Intense steaming from Sinabung this morning (VSI webcam)
Friday, Jan 17, 2014
Activity remains elevated although pyroclastic flows seem to have become less frequent over the past 24 hours. ... [more]
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]

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