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Eruption from Puyehue Volcano, Chile – June 12th, 2011

40.5S 72.1W

June 12th, 2011 Category: Volcanoes

Chile and Argentina - June 5th, 2011

This image shows ash blasting forth from the Puyehue Volcano in Chile. Here, the ash plume is blowing towards the southeast. Recent activity at the volcano has resulted in alert level 4 (out of 4) being issued on 03 June 2011.

A new eruption started as of 03 June, 20:30 UTC. As of 04 June, the ash cloud reached a height of 10,000 metres (32,810 ft). Click on the following link for previous articles on the 2011 Puyehue eruption.

Puyehue and Cordón Caulle are two coalesced volcanic vents that form a major mountain massif in Puyehue National Park in the Andes of Ranco Province, Chile. In volcanology this group is known as the Puyehue-Cordón Caulle Volcanic Complex (PCCVC).

Four different volcanoes constitute the volcanic group or complex, the Cordillera Nevada caldera, the Pliocene Mencheca volcano, Cordón Caulle fissure vents and the Puyehue stratovolcano.

As with most stratovolcanoes on the Southern Volcanic Zone of the Andes, Puyehue and Cordón Caulle are located along the intersection of a traverse fault with the larger north-south Liquiñe-Ofqui Fault.

The volcanic complex has shaped the local landscape and produced a huge variety of volcanic landforms and products over the last 300,000 years. Cinder cones, lava domes, calderas and craters can be found in the area apart from the widest variety of volcanic rocks in all the Southern Volcanic Zone,for example both primitive basalts and rhyolites. Cordón Caulle is notable for having erupted following the 1960 Valdivia earthquake, the largest recorded earthquake in history.



Ash from Puyehue Volcano Continues to Spread Over Atlantic Ocean – June 11th, 2011

40.5S 72.1W

June 11th, 2011 Category: Image of the day, Volcanoes

Chile and Argentina - June 8th, 2011

Close-up of Volcano

Close-up of Ash Plume

The 2011 Puyehue eruption is a volcanic eruption that began in the Puyehue-Cordón Caulle volcanic complex in Chile on June 4, 2011. At least 3,500 people were evacuated from nearby areas, while the ash cloud reached the city of Bariloche, in Argentina, where the local airport was closed.

Although the eruption is referred to as coming from Puyehue volcano, it is not yet clear if it originated from Puyehue or Cordón Caulle, an adjacent volcanic fissure. Cordón Caulle has erupted many times in recorded history, most recently in 1960, whereas Puyehue has remained dormant.

The main image shows the ash from the eruption spreading far across Argentina and out over the Atlantic Ocean.The GOES satellite measured the eruption plume reaching an altitude of 10 km and drifting 3300 km from the volcano. The close-ups show the cone of the volcano itself and a more detailed view of the ash plume.

Ash Plume from Mount Etna – December 7th, 2010

37.7N 14.9E

December 7th, 2010 Category: Image of the day, Sediments, Volcanoes

Mount Etna, Italy - December 7th, 2010

Mount Etna, capped with snow, can be seen on the eastern end of Sicily, Italy. At the time this image was taken, winds were blowing a small ash plume due east.

The northern and southern coasts of Sicily are flanked by tan and green sediments. Part of the tip of the Calabria region and the Strait of Messina are also visible.