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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
 Pyroclastic flow at the Shiveluch 08.010.2015 - photo Yu Demyanchuk.. / IVS FEB RAS, KVERT

Pyroclastic flow at the Shiveluch 08.010.2015 - photo Yu Demyanchuk.. / IVS FEB RAS, KVERT

The KVERT reported explosions at Shiveluch / Kamchatka Peninsula, the October 8 from 11:47 p.m. UTC, accompanied by an ash plume at 4000-4500 meters asl, before drifting over 25 km towards SE.

The explosive-effusive activity continues with producion of  pyroclastic flows, in connection with the collapse of large parts of the dome.

The aviation alert code remains in Orange.

 

Shiveluch - NASA Aqua satellite picture 08.09.2015 / 250m

Shiveluch - NASA Aqua satellite picture 08.09.2015 / 250m

In Cotopaxi / Ecuador, the alert remains at amarilla, with a moderate internal and surface activity.

On 8 October, gas and ashes were noticed, rising to 2,000 m. above the crater and caused ash fall on El Chasqui Chaupi, Machachi, Aloag, Obelisco, Panamerica Sur and San Ramon, either in majority on the southwest sector.

The webcams network  produces a permanent video surveillance of Cotopaxi.

Source: IGEPN

 

Cotopaxi - 08.10.2015 / locale 5:46 /10:46 TU - webcam IGEPN

Cotopaxi - 08.10.2015 / locale 5:46 /10:46 TU - webcam IGEPN

Places to major risks of ash falls around the Cotopaxi - Doc. Ministerio de Seguridad Ecuador

Places to major risks of ash falls around the Cotopaxi - Doc. Ministerio de Seguridad Ecuador

Satellite networks we relate thermal anomalies

- To Karangetang / Api siau / Sulawesi - signal by the site Mirova / Modis. The volcano alert is  level III / Siaga since 03/09/2013

- Michael Volcano, located on Saunders / South Sandwich Islands island - satellite Landsat 8 / OLI & TIRS, revealing an undetermined volcanic activity (end of August)

Karangetang - 09.10.2015 - MODIS VRP Mirova

Karangetang - 09.10.2015 - MODIS VRP Mirova

Saunders island - Mt Michael - thermal anomaly 06/10/2015 - doc Landsat 8 / OLI & TIRS

Saunders island - Mt Michael - thermal anomaly 06/10/2015 - doc Landsat 8 / OLI & TIRS

Location of Sanders island in the South Sandwich - Volcano position and the summit crater - Doc. GVP - a clic to enlargeLocation of Sanders island in the South Sandwich - Volcano position and the summit crater - Doc. GVP - a clic to enlarge
Location of Sanders island in the South Sandwich - Volcano position and the summit crater - Doc. GVP - a clic to enlarge

Location of Sanders island in the South Sandwich - Volcano position and the summit crater - Doc. GVP - a clic to enlarge

Seismographs recorded this October 7th from 9:20 thirty earthquakes, referring to typical bradyseism phenomenon of Campi Flegrei, affecting mainly Pozzuoli.

The most significant earthquakes were of magnitude 2 / 2.5 with an epicenter at 2-3 km depth, respectively, 10:37, 11:13 and 12:10. Solfataras Zones were evacuated as a precaution.

Source: Campi Flegrei news

 

Campi Flegrei - the Granda fumerola

Campi Flegrei - the Granda fumerola

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