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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
 Mombacho - evolution of the vegetation between 2012 and 2017 - photos Geografia of Nicaragua

 Mombacho - evolution of the vegetation between 2012 and 2017 - photos Geografia of Nicaragua

 Mombacho - evolution of vegetation between 2011 and 2017, on satellite images - Geografia de Nicaragua photos- a click to enlarge

Mombacho - evolution of vegetation between 2011 and 2017, on satellite images - Geografia de Nicaragua photos- a click to enlarge

The volcano Mombacho, located between the Masaya and Lake Nicaragua, is it busy to wake up?
It is in any case killing the vegetation around the southern crater; many trees died, due to sulfur dioxide emissions and high soil temperatures.

Mombacho - burned vegetation in one of the scars of collapse - Geografia de Nicaragua photo

Mombacho - burned vegetation in one of the scars of collapse - Geografia de Nicaragua photo

 Location of the Mombacho among the many Nicaraguan volcanoes - 3D map LAVE.Be

Location of the Mombacho among the many Nicaraguan volcanoes - 3D map LAVE.Be

The Mombacho is an andesitic and basaltic stratovolcano that has undergone various collapses that left large, horseshoe craters, cutting the summit on its northeast and southern flanks.
The scar that marks the northeast flank was the source of an avalanche of debris, which built a peninsula in arc and Las Isletas, a set of small islands in Lake Nicaragua. Two small ash cones punctuate the northern flank of volcano.
Hot springs and fumarole fields are present on both collapse scars and on the upper northern flank. These fumaroles have been active since 1986 until November-December 1993; a strong smell of sulfur detected allowed to discover two new fields fumaroles.
 
Source: Geografia of Nicaragua

Shinmoedake - eruptive plume of 11.10.2017 / 5h34 - photo Asahi Shimbun

Shinmoedake - eruptive plume of 11.10.2017 / 5h34 - photo Asahi Shimbun

At Shinmoedake - Kirishima, a minor eruption began on October 11th at 5:34 am local, accompanied by a plume of ash of 300 meters, spreading later more horizontally.
The eccentric vent opened in the lava cake covering the crater since 2011.
The alert level was raised to 3 out of 5 / not approaching the crater, this 11th of October at 11:05 by the JMA.
 
Sources: Asahi Shimbun, VAAC Tokyo and JMA

Activity of Mombacho, Shinmoedake and Agung.
Shinmoedake - Kirishima - Volcanic ash advisory 11.10.2017 / 6h03 - VAAC Tokyo

Shinmoedake - Kirishima - Volcanic ash advisory 11.10.2017 / 6h03 - VAAC Tokyo

The eruptive plume of the Shinmoedake respectively at 5:36 and 7-10 pm on 11.10.2017 - a click to enlarge
The eruptive plume of the Shinmoedake respectively at 5:36 and 7-10 pm on 11.10.2017 - a click to enlarge

The eruptive plume of the Shinmoedake respectively at 5:36 and 7-10 pm on 11.10.2017 - a click to enlarge

 Shinmoedake - photo 11.10.2017 コ コ ち ゃ ん ん @ kokochan0505 / Twitter

Shinmoedake - photo 11.10.2017 コ コ ち ゃ ん ん @ kokochan0505 / Twitter

At Agung, according to Dr. Krippner, deformations, visual observations, vapor intensity and thermal images indicate a high potential for eruption.
The BNPB chartered three drones, with a wingspan of 2 to 3 meters, capable of flying at a satisfactory height for the monitoring of the volcano.

Agung - two of the three surveillance drones - Doc. BNPB

Agung - two of the three surveillance drones - Doc. BNPB

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