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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
Etna - the cone SE, situation at 01.04.2017 / at dawn - photos Boris Behncke

Etna - the cone SE, situation at 01.04.2017 / at dawn - photos Boris Behncke

In Etna, Boris Behncke reports the opening a few days ago of a new hole / "puttusiddu" on the southern side of the cone of the saddle of the crater SE, source of the last two eruptive episodes (27.02 to 01.03.2017 and 15 to 20.03.2017)

Etna - channeled lava flow - photo Giuseppe Distefano / EtnaWalk

Etna - channeled lava flow - photo Giuseppe Distefano / EtnaWalk

The third eruption of 2017 continues at the Fuego with moderate to strong explosions.
The plumes of ash are raised up to 5,000 meters asl, with fallout on a sector west-southwest. Long lava flows of 3,000 meters affect the Trinidad, Las Lajas and Honda barrancas. A risk of pyroclastic flows weighs on the barrancas Las Lajas and Ceniza.
 
Sources: Insivumeh & Conred

Fuego - night activity on 02.04.2017, at 2:17 & 2:40 - one click to enlarge - Insivumeh Fuego - night activity on 02.04.2017, at 2:17 & 2:40 - one click to enlarge - Insivumeh 

Fuego - night activity on 02.04.2017, at 2:17 & 2:40 - one click to enlarge - Insivumeh 

Fuego - RSAM, webcam and ash dispersal area on 01.04.2017 report Insivumeh / 22h20

Fuego - RSAM, webcam and ash dispersal area on 01.04.2017 report Insivumeh / 22h20

From midnight to 8 am, the Turrialba presented on 1 April constant ash emanations, scattered towards the O-NO, accompanied by falls of ashes on Purral, Coronado, Moravia, Tibás y Heredia.
Incandescence is maintained at the level of the crater, while ash plumes do not exceed 500 meters above the crater.


Source: Ovsicori

 

Turrialba - Nocturnal glow due to high temperature gas - Ovsicori webcam 01.04.2017 / 21h36 - Ovsicori

Turrialba - Nocturnal glow due to high temperature gas - Ovsicori webcam 01.04.2017 / 21h36 - Ovsicori

Map of volcanic risks in Turrialba - publication http://www.costaricantimes.com

Map of volcanic risks in Turrialba - publication http://www.costaricantimes.com

On 1 April, new explosions of ash occurred at the Nevados de Chillan complex.

Two phases were identified: the first around 15:35 UT is characterized by a strong emission, about ten minutes; The plume was swept away to the S-SE.
The second, around 16.55 TU, was less productive.
Nocturnal incandescence could be observed.
The technical alert level remains in Amarillo.


Source: Sernageomin

Nevados de Chillan - 01.04.2017 / 15h35 TU - webcam Sernageomin

Nevados de Chillan - 01.04.2017 / 15h35 TU - webcam Sernageomin

Nevados de Chillan - 01.04.2017 / 16h55 TU - Sernageomin

Nevados de Chillan - 01.04.2017 / 16h55 TU - Sernageomin

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