Volcanic ash from earlier eruptions has settled onto the snowy landscape, leaving dark gray swaths. The ash stains are confined to the south of the Karymsky’s summit, one large stain fanning out toward the southwest, and another toward the east.
On March 26, 2009, Redoubt Volcano sent a column of ash some 19,800 meters (65,000 feet) above sea level, and sent a lahar through the Drift River Valley.
Acquired April 15, 2010, this natural-color image shows an ash plume blowing from Eyjafjallajökull Volcano toward the east-southeast across the North Atlantic. The plume’s tan hue indicates a fairly high ash content.