Overblog
Suivre ce blog
Editer la page Administration Créer mon blog

Earth of fire

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

Publié par Bernard Duyck

At Etna, the eruptive episode initiated on May 12, 2015 is continuing: a gradual increase in eruptive activity has been accompanied by an increase in the magnitude of the tremor and movement of the source of the tremor to the surface the NSEC.

Etna - movements of the tremor zone towards the NSEC - Doc. Boris Behncke via FB

Etna - movements of the tremor zone towards the NSEC - Doc. Boris Behncke via FB

 Etna NSEC - Strombolian activity  on 12/05/2015 - photo Turi Caggegi / iEtna

Etna NSEC - Strombolian activity on 12/05/2015 - photo Turi Caggegi / iEtna

Etna - the thermal anomaly 05.13.2015 / 10:15 - Doc. Mirova

Etna - the thermal anomaly 05.13.2015 / 10:15 - Doc. Mirova

During the night of 12 to 13, the parameters have stabilized and the activity concentrated on three mouths, aligned on an eruptive fracture oriented east-west.

The opening of the mouth on the eastern hem of the NSEC has been accompanied by an outpouring of lava and small collapses, and emission of ash on the summit area and upper flank of Etna. The lava flow has reached the base of the cone NSEC in the late morning.


 

Etna 13/05/2015 - at the crack, the collapses are accompanied by emission of ash - photo Giuseppe Distefano / Etna Walk / FB

Etna 13/05/2015 - at the crack, the collapses are accompanied by emission of ash - photo Giuseppe Distefano / Etna Walk / FB

In the evening of 13, the tremor has recovered as well as the strombolian activity, both in energy and frequency of explosions, and a light gas and ashes emissions. The fracture on the side North is always produced an explosive and effusive activity.
The lava flow advances towards Monte Simone.

Sources:

- INGV Catania

- médias : RadioStudio7 - iEtna - Etnativo - Etna Walk

 Etna - diagram of magitude of the tremor - Doc. INGV

Etna - diagram of magitude of the tremor - Doc. INGV

Etna NSEC - 05.13.2015 / 7:58 p.m. - webcam RadioStudio7

Etna NSEC - 05.13.2015 / 7:58 p.m. - webcam RadioStudio7

 Etna NSEC - 05.13.2015 - effusive and explosive activity - photo Piero Romano / via EtNativo

Etna NSEC - 05.13.2015 - effusive and explosive activity - photo Piero Romano / via EtNativo

Etna NSEC - advance of lava on 14/05/2015 at 4:51 & 5:57 loc - Doc. webcan therm. INGV CataniaEtna NSEC - advance of lava on 14/05/2015 at 4:51 & 5:57 loc - Doc. webcan therm. INGV Catania

Etna NSEC - advance of lava on 14/05/2015 at 4:51 & 5:57 loc - Doc. webcan therm. INGV Catania

In Colombia, the Nevado del Ruiz has experienced a new episode of tremor on 13.05 from 3:08 , associated with ash emissions amount to some 300 meters, and possible falls on the northwest of the volcano, and the region of Chinchina

Source: Observatorio Vulcanologico sismologico to Manizales

 

Nevado del Ruiz - 13/05/2015 - Doc. OVSM

Nevado del Ruiz - 13/05/2015 - Doc. OVSM

In Sinabung, the growth of the lava lobe continues ... it comes off cleanly on a background of needles and fumaroles, and has a low nocturnal glow.
 

Sinabung Summit, with the lava lobe 13.05.2015 / 24:40 - photo endrolew @

Sinabung Summit, with the lava lobe 13.05.2015 / 24:40 - photo endrolew @

Sinabung - the night glow lobe 14.05.2015 / 1:27 - photo endrolew @

Sinabung - the night glow lobe 14.05.2015 / 1:27 - photo endrolew @

Articles récents

Hébergé par Overblog