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Earth of fire

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

Publié le par Bernard Duyck
Publié dans : #Actualités volcaniques
 Alaid - plume of 5 March 2016 - Doc. Nasa worlview EODIS

Alaid - plume of 5 March 2016 - Doc. Nasa worlview EODIS

In the Kuril islands, the volcano Alaid still has a thermal anomaly identified by Mirova / Modis.
 

Alaid - variable thermal anomaly between 13 and 15 March; and summary table of March - Doc. Mirova / Modis
Alaid - variable thermal anomaly between 13 and 15 March; and summary table of March - Doc. Mirova / Modis

Alaid - variable thermal anomaly between 13 and 15 March; and summary table of March - Doc. Mirova / Modis

In Mexico, Popocatepetl has presented on 13 March 5 explosions, respectively, 10:07, 12:40, 01:18 p.m., 8:00 p.m. and 9:01 p.m. and  four explosions on March 14, respectively at 2:10, 3:42, 7:30 and 9:42. The winds have scattered the plume towards the northeast. The level of tremor  rose from 44 episodes the 13.03 to 324 episodes on 14.03 .
 

Popocatépetl - explosions 14.03.2016 / 7:34 - WebcamsdeMexico

Popocatépetl - explosions 14.03.2016 / 7:34 - WebcamsdeMexico

In Colima, intermittent explosions continue ... some examples through webcams.
 

Colima - 03.14.2016 / 11:58 - webcamsdeMexico

Colima - 03.14.2016 / 11:58 - webcamsdeMexico

Colima - 03.14.2016 / 7:03 p.m. - webcamsdeMexico

Colima - 03.14.2016 / 7:03 p.m. - webcamsdeMexico

In DRC, a team of VolcanoDiscovery reports that the Nyiragongo was "unusually noisy" during the night of 10 March, suggesting an important activity both in the lava lake that at the new NE vent , observed since 1 March.

Photos posted on 12 and 13 March show that the lava flow from the new vent divided into several branches and reaches the edge of the lava lake.

Nyiragongo - photo posted on Facebook on 3/12/2016 by João Cunha Monteiro

Nyiragongo - photo posted on Facebook on 3/12/2016 by João Cunha Monteiro

 Nyiragongo - photo posted on 13/03/2016 by Alessandro Ronzoni

Nyiragongo - photo posted on 13/03/2016 by Alessandro Ronzoni

The INGV Catania did enjoy of an animation formed by images of ground deformation of Etna between February 2015 and February 2016. They were taken by the Sentinel-1A satellite, equipped with a SAR interferometric sensor band C, capable of measuring deformation with sub-centimeter accuracy.

It may be noted the inflation of Etna, in blue, until November 2015; eruptive activity from December 2015 then caused a deflation and a movement, in red, of the northeastern flank of the volcano. Movement of the Eastern bloc, together with a greater deformation around the block Timpe, and finally the spread to the south of the eastern flank deformation as a consequence of the activation of the fault San Gregorio-Acitrezza in the second half of January 2016.

To see on:
http://www.ct.ingv.it/images/Sentinel/Sentinel_asce_2015_2016_low.GIF

Activity of Alaid, Popocatepetl, Colima, Nyiragongo and Etna volcanoes.

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