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Trail of volcanic gas cloud seen by infrared satellite imagery
June 12, 2011- CHILE – After lying dormant for more than 50 years, a series of rumbling earthquakes signaled the beginnings of this major volcanic eruption. On 4 June, a fissure opened, sending a towering plume of volcanic ash and gas over 10 km high. This image shows the huge plume of sulphur dioxide that spewed from Chile’s Puyehue-Cordón Caulle Volcanic Complex, which lies in the Andes about 600 km south of Santiago. It was generated on 6 June using data from the Infrared Atmospheric Sounding Interferometer on the MetOp-