Asama Volcano on the Japanese island of Honshu showed signs of unrest, including ash plumes and increased seismic activity, starting in late January 2009.
Using data acquired September 13, 2002, this 3-D visualization shows an old lahar (avalanche of volcanic mud) extending from Anyuyskiy Volcano in far eastern Russia.
In western Sudan, lies a network of volcanic mountains and fertile valleys where just enough rain falls to sustain agriculture. This mountainous region contains a volcanic field known as Jebel Marra.
This true-color image shows clouds, possibly from volcanic vapor, hovering over the summit of Manam Volcano while a plume blows toward the west-northwest on June 28, 2009.