Manam Volcano in Papua New Guinea, as seen from space on June 16, 2010. Located 13 kilometers (8 miles) off the coast of mainland Papua New Guinea, Manam forms an island 10 kilometers (6 miles) wide. It is a stratovolcano. The volcano has two summit craters, and although both are active, most historical eruptions have arisen from the southern crater.
On June 16, the volcano released a thin, faint plume as clouds clustered at the volcano's summit. Rivulets of brown rock interrupt the carpet of green vegetation on the volcano’s slopes. White clouds partially obscure the satellite’s view of Manam. The clouds may be the result of water vapor from the volcano, but they may also have formed independently of volcanic activity. The volcanic plume appears as a thin blue-gray veil extending toward the northwest over the Bismarck Sea.