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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

 

Le Nabro semble évoluer vers une phase effusive : le satellite Terra / Aster a photographié, en infra-rouge, une longue coulée de lave s'étendant sur 15 km, et sortant de la caldeira en direction du nord-ouest.

Le panache a diminué en hauteur et est signalé à 7.600 mètres

Sur la photo satellite en fausses couleurs : la coulée est de couleur blanche, le panache chargé en vapeur d'eau est de couleut noire et obscurcit le cratère, tandis que le nuage de cendres en direction du sud-ouest apparait pourpre.

 

 

After nearly a week of explosive activity, Eritrea’s Nabro Volcano seems to be evolving into a milder, more effusive eruption. By June 19th, the maximum altitude of Nabro’s ash plume dropped from a maximum of 45,000 feet (14,000 meters) to 25,000 feet (7,600 meters), according to the Joint Air Force & Army Weather Information Network. The shrinking plume revealed a 15-kilometer (9.3-mile) long lava flow, visible in this thermal infrared, false-color satellite image.

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) aboard the Terra satellite observed Nabro on the evening of June 19, 2011. Hot areas are bright, and cold areas are dark. The thermal infrared data were combined with a shaded relief image to show the terrain. The white feature exending to the northwest from Nabro is an active lava flow. A high-altitude plume, likely rich in water vapor, is nearly black, and obscures the erupting vents. A diffuse, ash-rich plume to the southwest of Nabro appears purple.

nabro_Terra-aster-_2011.06.11.jpg

NASA Earth Observatory image by Jesse Allen and Robert Simmon, using imagery and elevation data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. Caption by Robert Simmon.

Instrument:  Terra - ASTER - 19.06.2011

 

Dans un rapport du ministère de l'information du 21.06, il est fait état de 7 tués et 3 blessés consécutivement à l'éruption.

Les habitants de la région ont été déplacé en lieu sûr et des vivres leur sont apportées, comme en témoigne la vidéo.

Comme déjà indiqué, les cendres et les gaz affectent la région de Sireru.

Le Ministère de l'énergie et des mines signale la création d'un nouveau territoire  .

 

Asmara, June 21, 2011- The powerful volcano that erupted in the Southern Red Sea region has created a new landmass, according to the director general of Mines at the Ministry of Energy and Mines, Mr. Alem Kibreab.  Mr. Alem said that the volcano spewing ash and lava has created a new land mass measuring hundreds of square metres.
Mr. Alem also pointed out that the eruption in Sireru has spewed smoke and ash that has affected our region.
The director general also disclosed that a team composed of geological and volcanic experts is conducting studies in the area.
Meanwhile, according to reports, 7 people have died while 3 people have sustained injuries due to the eruption. The inhabitants of the area have been moved to safer locations while at the same time they’re given basic provisions.
According to data, a similar volcanic eruption in Eritrea occurred in 1861, in Dubbi, Southern Denkel.

 

Source : Shabait.com - Ministry of information

 

 

First pictures of the lava flows / premières images des coulées de lave.

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