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Earth of fire

Actualité volcanique, Articles de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #Actualités volcaniques

The Sinabung made its show yesterday 24 October.
Many pyroclastic flows have been recorded by the webcams and the faithful observers of the volcano.
Without being exhaustive, here are some moments when they were observed: at 10:05, 14:45-51, 19:19, 20:40, 22:14-30.

Sinabung - Pyroclastic flow on the 24.10.2017 at 10h05 - webcam PVMBG

Sinabung - Pyroclastic flow on the 24.10.2017 at 10h05 - webcam PVMBG

Sinabung - pyroclastic flow facing webcam over 3,000 meters with plume rising to 800 m - 24.10.2017 / 14:45 - photo PVMBG

Sinabung - pyroclastic flow facing webcam over 3,000 meters with plume rising to 800 m - 24.10.2017 / 14:45 - photo PVMBG

Sinabung - the same flow seen from a different point of view - photo F.Surbakti via Beidar Sinabung

Sinabung - the same flow seen from a different point of view - photo F.Surbakti via Beidar Sinabung

Sinabung - the pyroclastic flow of 24.10.2017 / 14h48 - photo Endro Lewa

Sinabung - the pyroclastic flow of 24.10.2017 / 14h48 - photo Endro Lewa

The summit lava dome remains impressive; the latest measurements taken on October 12 are around 2.2 million cubic meters.

Sinabung - two different views of the lava dome - the 24.10.2017 respectively at 12:26 and 15:21 - photos Endro Lewa
Sinabung - two different views of the lava dome - the 24.10.2017 respectively at 12:26 and 15:21 - photos Endro Lewa

Sinabung - two different views of the lava dome - the 24.10.2017 respectively at 12:26 and 15:21 - photos Endro Lewa

Sinabung - 24.10.2017 / 19h19 - the glowing dome and lightning in the background on the webcam PVMBG

Sinabung - 24.10.2017 / 19h19 - the glowing dome and lightning in the background on the webcam PVMBG

Sinabung - 24.10.2017 / 20h40 - photo Endro Lewa

Sinabung - 24.10.2017 / 20h40 - photo Endro Lewa

Sinabung - 24.10.2017 / 22h14 - the dome is still visible - Photo Endro Lewa

Sinabung - 24.10.2017 / 22h14 - the dome is still visible - Photo Endro Lewa

Sinabung - 24.10.2017 / 22h17 - photo Endro Lewa

Sinabung - 24.10.2017 / 22h17 - photo Endro Lewa

Sinabung - 24.10.2017 / 22.30 - photo Endro Lewa

Sinabung - 24.10.2017 / 22.30 - photo Endro Lewa

The dam created on the Laborus River, following the successive pyroclastic flows of April 10, 2017 and August 2 and 3, 2017, resulted in the formation of a growing reservoir lake; it is not sufficiently strong to contain such a volume of water and is a risk of lahar or flash floods not insignificant.


Sources: PVMBG, BNPB, and local observers, with a special thank you for Endro Lewa and Firdaus Surbakti, still in the breach.

 Agung - from Bukit Asah this 25.10.2017 / 5:55 - webcam Telkomsel

 Agung - from Bukit Asah this 25.10.2017 / 5:55 - webcam Telkomsel

Seismicity continues to decline at Agung.

On October 24th, the PVMBG reported 2 episodes of non-harmonic tremor, 133 VA deep volcanic earthquakes, 131 VB superficial volcanic earthquakes, 7 local tectonic earthquakes and 2 more distant tectonic earthquakes, including an important magnitude 6.5 recorded in the sea. Banda, this 24.10.17 at 10:47 UTC and a depth of 550 km.
 
This morning, the summit was clear and fumaroles light.
The BNPB still reports 138,000 inhabitants still displaced.
 
Sources: PVMBG, Magma Indonesia, BNPB and CSEM

 Agung -  summary histogram of seismicity as of 24.10.2017 - doc.Magma Indonesia

Agung - summary histogram of seismicity as of 24.10.2017 - doc.Magma Indonesia

 Seismic plot of the tectonic earthquake in the Banda Sea on 24.10.2017

Seismic plot of the tectonic earthquake in the Banda Sea on 24.10.2017

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