A new crater began erupting Saturday 4 June in the Puyehue-Cordón Caulle volcano range in the Andes, near the Chile-Argentina border, sending a huge plume of ash 10 km high and 5 km wide into the air that threatened the health of residents in the surrounding area. Some 4,000 people have been evacuated. The SPOT 4 image was tasked for the International Charter on Space and Major Disasters to support evacuation and mitigation planning.
The new crater is 4.5 km from Puyehue, a cone stratovolcano that peaks at 2,236 metres. Eruptions of this volcano range can be very explosive, as it sits atop the Peru-Chile Trench where the Nazca Plate is sliding under the South American Plate at a rate of 7 cm a year.