Mount Oyama, a volcano on the Japanese island of Miyakejima, has been erupting sporadically since June of 2000. On February 22, 2001, the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) captured a plume of ash rising into the air and drifting toward the Japanese mainland. Tokyo bay is located to the north of the erupting volcano.

Image provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE