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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
Colima - pyroclastic flow - image 25.01.2017 / 7h51 webcamsdeMexico

Colima - pyroclastic flow - image 25.01.2017 / 7h51 webcamsdeMexico

Two strong explosions at Colima on January 25:
The first at 7:49 am accompanied by a plume rising to about 4,000 meters; The collapse of the eruptive column caused a pyroclastic flow on the northeast flank.
The second towards 8h generated a plume of 3,000 meters in height, followed by a dispersion towards the ENE.


Sources: webcamsdeMexico, Proteccion Civil de Jalisco.

 

Colima - 25.01.2017 / 7h50 - start of the episode - webcamsdeMexico

Colima - 25.01.2017 / 7h50 - start of the episode - webcamsdeMexico

Colima, the plume seen from Ciudad Guzman - photo César Ruelas 25.01.2017

Colima, the plume seen from Ciudad Guzman - photo César Ruelas 25.01.2017

Colima - 2nd explosion of 25.01.2017 / at 8:07 - webcamsdeMexico

Colima - 2nd explosion of 25.01.2017 / at 8:07 - webcamsdeMexico

An explosion was recorded at the Ubinas on January 24, 2017 at 2:23 local; The OVS-IGP reports that it indicates a disturbance of the hydrothermal system of the volcano following the ascent of magma identified since the beginning of January. At the seismicity level, the day of 21.01 is to be pointed, with five hours of tremor.


Source: OVS - IGP

Ubinas - Spectrogram of the explosion 24.01.2017 / 2h23 loc - 7h23 UTC - duration of the episode 27 sec. - Doc. OVS - IGP

Ubinas - Spectrogram of the explosion 24.01.2017 / 2h23 loc - 7h23 UTC - duration of the episode 27 sec. - Doc. OVS - IGP

In Guatemala, the Fuego is the site of constant explosions, moderate to strong, accompanied by an ash plume rising to 5,000-5,500 m. Asl., before moving on a large western area.
Incandescent emissions reach 250 meters above the crater; they feed a lava flow in the barranca Ceniza, for the moment of 1000 meters long. The fall of bombs and incandescent materials goes up to 300 meters from the crater.


Source: Insivumeh

Fuego - real time seismicity RSAM - doc. Insivumeh

Fuego - real time seismicity RSAM - doc. Insivumeh

Fuago - 26.01.2017 / 0h19 loc - Insivumeh webcam & ash distribution map 25.01.2017 - doc. Insivumeh Click to enlarge
Fuago - 26.01.2017 / 0h19 loc - Insivumeh webcam & ash distribution map 25.01.2017 - doc. Insivumeh Click to enlarge

Fuago - 26.01.2017 / 0h19 loc - Insivumeh webcam & ash distribution map 25.01.2017 - doc. Insivumeh Click to enlarge

Since January 17, 2017, the Turrialba has maintained a quiet activity, and passive emissions of bluish gas and aerosols in direction SSE.
The transparency of the plume allows daylight to well appreciate the dimensions of the crater, and at night, the brightness of the gases emitted at high temperature (> 600 ° C)


Sources: Ovsicori and RSN

Turrialba - 25.01.2017 / 8h53 - webcam RSN

Turrialba - 25.01.2017 / 8h53 - webcam RSN

Turrialba - Daily and cumulative RSEM between 2014 and 2017 - Doc. RSN

Turrialba - Daily and cumulative RSEM between 2014 and 2017 - Doc. RSN

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