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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 plume of the Copahue, seen the 17.11.2016 from Cavihue - photo Valentina / Twitter

The plume of the Copahue, seen the 17.11.2016 from Cavihue - photo Valentina / Twitter

The Copahue, in Chile, on alert level Amarilla since June 2, 2013, shows a weak and continuous superficial activity, concentrated in the crater, according to Sernageomin.
The photos show however a dark plume of ashes, this November 17, 2016, spotted by the satellites and the inhabitants of Cavihue.


Sources: Sernageomin, Onemi and Twitter.

Copahue - the dark plume of 17.11.2016 - photo Sernageomin

Copahue - the dark plume of 17.11.2016 - photo Sernageomin

Copahue - photo Sentinel 2 - 17.11.2016

Copahue - photo Sentinel 2 - 17.11.2016

The Kerinci, on Sumatra, also presents gas emissions more or less difuses, and somewhat loaded with ashes this 17.11.2016. A prohibited area of ​​3 km radius is prescribed and overflight by aviation is not recommended


Source: Sutopo Purwo Nugroho / BNPB

  Kerinci - picture of BNPB

  Kerinci - picture of BNPB

In the central crater (CC) of Etna, the mouth open in the Voragine (VOR) on August 7 is still degassing.

The Bocca Nuova (BN) presents two continuous slow subsiding depressions, initiated on 10 October 216. The deepening of BN-1 is faster. The temperature of these depressions is sufficient for the snow in the crater not to persist.


INGV points out a diffuse smoldering activity in the north-east crater (NEC) and the new south-east crater (NSEC)


The measured gas level corresponds to a medium level degassing, involving the presence of a non-degassed magma in a deeper portion of the general supply system.
The seismicity and level of the tremor remains low.
 
Source: INGV weekly newsletter of Etna 15.11.2016

Etna craters summits - photo Piero Berti / Butterfly helicopter services / 13.11.2016 via INGV Catania

Etna craters summits - photo Piero Berti / Butterfly helicopter services / 13.11.2016 via INGV Catania

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