A thick plume of ash rose from Mount Merapi on November 10, 2010, when this photo-like image was taken. It is the most cloud-free image of the eruption to date.
This visualization shows the approximate location of an avalanche of hot ash and volcanic gas flowing down Indonesia’s erupting Mount Merapi volcano on October 30, 2010.
NASA satellites detected ash from Mount Kelut nearly 20 kilometers (12 miles) in the atmosphere within two hours of the explosive February 13 eruption.