Overblog
Editer l'article Suivre ce blog Administration + Créer mon blog

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

Some beautiful photos shared by my friend Thierry Sluys of the first day of the eruption of Piton de La Fournaise - to watch in full screen, by clicking on the thumbnail.

After a rather long and difficult approach between the barely cooled, super fragile and tricky flows of crater Kalla and Pele (eruption from August to October 2015), those still smoking of Piton Jasmin (eruption from April to June 2018), the arrival on the active crack and the current flows ends, with the feeling of a heat stronger and stronger!

The fountains, pulsating, spit lava spatters that form dikes, before forming a cone ... in a deafening breath.

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

 Piton of the Furnace - 15,09,2018 - photo © Thierry Sluys / Flickr Volcanolover

  Piton de La Fournaise - 15,09,2018 - with Piton de Bert in the spotlight - photo © Thierry Sluys / Flickr Volcanolover

 Piton de La Fournaise - 15,09,2018 - with Piton de Bert in the spotlight - photo © Thierry Sluys / Flickr Volcanolover

  Piton de La Fournaise - 15,09,2018 - with Piton de Bert in the spotlight - photo © Thierry Sluys / Flickr Volcanolover

 Piton de La Fournaise - 15,09,2018 - with Piton de Bert in the spotlight - photo © Thierry Sluys / Flickr Volcanolover

To watch in full screen! - Piton de La Fournaise - September 15, 2018 Uploaded by Thierry SLUYS - LEU BLUE AUSTRAL on 2018-09-16.

An eruptive cone began to build around the only 3 vents remaining active.

Fourteen volcano-tectonic earthquakes were recorded under the summit craters during the day of 16 September.
The SO2 emissions recorded by the OVPF's permanent sensors are much higher than the atmospheric background (linked to the volcanic gas plume), and are mostly dispersed west and south since early morning, but remain visible at the top. .
No deformation is noticeable since the beginning of the eruption.
The surface flows estimated from the satellite data, via the HOTVOLC platform (OPGC - University of Auvergne), are between 2.5 and 5 m3 / s for the beginning of the day of September 17th.
During the night, lava flow continued mainly in the southernmost channel. A visual recognition from Bert's piton will be made today to try to assess the position of the casting front

Sources: OVPF and photos and video of Thierry Sluys.

Piton de La Fournaise - 16.09.2018 - a cone forms around the 3 active fountains - photo Ilotdrones / Facebook

Piton de La Fournaise - 16.09.2018 - a cone forms around the 3 active fountains - photo Ilotdrones / Facebook

Piton de La Fournaise - 16.09.2018 - a cone forms around the 3 active fountains; in the foreground right, the pointed silhouette of the Piton Jasmin - OVPF photo

Piton de La Fournaise - 16.09.2018 - a cone forms around the 3 active fountains; in the foreground right, the pointed silhouette of the Piton Jasmin - OVPF photo

The AVO has upgraded the aviation codes and the volcanic warning level from Semisopochnoi to Yellow / Advisory on 16 September at 09:55 AKDT following an increase in seismicity. There is currently no sign of activity.

Semisopochnoi is a volcanic island located in western Aleutian, composed of a variety of volcanic structures. A shield 20 km wide is surmounted by a caldera 8 km wide. Mount Cerberus is the most active of three young intracaldeira cones, consisting of basalt and andesite. The Sugarloaf is made of olivine basalt. Much of the island is covered with basalt to andesitic ash emitted by these cones.

Source: AVO

Semisopochnoi - RSAM at 17.09.2018 / 5h50 - and location of the island west of the Aleutian arc - Doc.AVO - one click to enlarge Semisopochnoi - RSAM at 17.09.2018 / 5h50 - and location of the island west of the Aleutian arc - Doc.AVO - one click to enlarge 

Semisopochnoi - RSAM at 17.09.2018 / 5h50 - and location of the island west of the Aleutian arc - Doc.AVO - one click to enlarge 

Semisopochnoi - the three intracaldeira cones, Fenner Lake in the background, and left, the Anvil peak - photo R.Clifford 2012 / AVO

Semisopochnoi - the three intracaldeira cones, Fenner Lake in the background, and left, the Anvil peak - photo R.Clifford 2012 / AVO

The slow growth of the summit dome of the Merapi continues; its volume reaches 112,000 m³ on September 16th, with a feed ration of 1,600 m³ (resulting linear enough since its construction)

Source: PVMBG

Merapi - dome growth on 16.09.2018 - Doc.PVMBG

Merapi - dome growth on 16.09.2018 - Doc.PVMBG

A video of September 16th shows the evolution of the lava flow and the summit of the Shinmoedake / Kirishima group.

Source: Fumihiko Ikegami
 

The lava flow of March 2018 and the summit crater of the Shinmoedake photographed by a Phantom 4 on 16.09.2018

Commenter cet article

Articles récents

Hébergé par Overblog