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Chile’s Puyehue-Cordón Caulle Volcano Active Again – February 10th, 2012

40.6S 72.5W

February 10th, 2012 Category: Image of the day, Volcanoes

Chile and Argentina - February 6th, 2012

Chile’s Puyehue-Cordón Caulle volcano releases ash and steam once again in early February. Here, the ash plume can be seen blowing to the east-northeast, over Argentina. Misleadingly called by media the Puyehue eruption, the eruption is actually from the Cordon Caulle fissure.

The eruption began over eight months ago, in the Puyehue-Cordón Caulle volcanic complex, on June 4, 2011, although increased seismic activity had been reported even earlier, on April 27, 2011. The ash cloud from the first period of eruptions was blown across cities all around the Southern hemisphere, including Bariloche, Buenos Aires, Montevideo, Stanley, Porto Alegre, Cape Town, Hobart, Perth, Adelaide, Sydney, Melbourne, Wellington and Auckland, forcing airlines to cancel hundreds of international and domestic flights and causing travel chaos.

Volcanic Ash and Steam Released from Puyehue-Cordón Caulle Once Again – December 29th, 2011

40.6S 72.5W

December 29th, 2011 Category: Image of the day, Volcanoes

Argentina and Chile - December 24th, 2011

Volcanic ash and steam pour through a fissure of Chile’s Puyehue-Cordón Caulle volcano that opened several months earlier. The active fissure lies northwest of the Puyehue caldera, and a plume blows from the fissure westwards to the coast, then northwestwards over the Pacific Ocean.

Chile’s Servicio Nacional de Geología y Minería has characterized the recent activity as a minor eruption of low intensity. Puyehue-Cordón Caulle is a stratovolcano, a steep-sloped, conical volcano composed of layers of ash, lava, and rocks released by previous eruptions. The volcano is 2,236 meters (7,336 feet) high.

Phytoplankton Bloom and Ash from Puyehue-Cordón Caulle Volcano Off Argentine Coast

45.6S 63.6W

November 25th, 2011 Category: Phytoplankton, Volcanoes

Argentina - November 24th, 2011

More than five months after its initial explosive eruption, Chile’s Puyehue-Cordón Caulle volcano continues to produce impressive plumes of ash.  Here, one such plume can be seen blowing eastward off the coast of Argentina and over the Atlantic Ocean.

Visible beneath the veil of ash is a green phytoplankton bloom, most evident near the bottom edge of the image. Although individual phytoplankton are microscopic and rarely live more than a few days, when conditions are right, phytoplankton populations can grow explosively, a phenomenon known as a bloom. Blooms in the ocean may cover hundreds of square kilometers and are easily visible in satellite images, as can be observed here.

Ash Cloud from Puyehue-Cordón Caulle Extending Out Over Atlantic

43.7S 64.5W

October 19th, 2011 Category: Volcanoes

Chile and Argentina - October 17th, 2011

Chile’s Puyehue-Cordón Caulle volcano is creating ash clouds again that have led to the cancellation of at least 100 flights in Argentina and, to a lesser extent, cancellations in Chile, Paraguay and Uruguay.

The volcano first erupted on June 4 and has been periodically letting off ash clouds ever since. The latest ash cloud emerged from the volcano on Saturday, October 15th (click here for an image from that date). Here, the ash can be seen extending eastward over the Atlantic Ocean.

Aftershocks from the volcanic event were felt strongly in Buenos Aires causing the city to go dark in the afternoon of Oct. 15 and cause travel advisories to be released by the highway patrol on routes 2, 8, 12 and 33.

Flights are being cancelled due to the fact that the volcanic ashes could cause airplane malfunctioning if the ashes were to clog the jet engines. Buenos Aires’ Aeroparque wasn’t operational after midday Oct. 16 and delays occurred at Ezeiza leaving thousands stranded. The re-appearance of ash closed the route to the international airport of San Carlos de Bariloche.

 

Chile’s Puyehue-Cordón Caulle Volcano Releases Ash Once Again – October 18th, 2011

40.6S 72.5W

October 18th, 2011 Category: Image of the day, Volcanoes

Chile and Argentina - October 15th, 2011

Chile’s Puyehue-Cordón Caulle volcano acted up again this week releasing a cloud of ash that spread across Chile and over Argentina. In the lower half of this image, a whitish ash cloud can be seen fanning out from the volcano.

In the upper half of the image, some tan-colored ash can be seen hangin over the province of Buenos Aires, between Bahía Blanca and the city of Buenos Aires (upper right corner, appearing as a greyish-tan area on the shores of the brown, sediment-laden Rio de la Plata Estuary).

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