The images below were collected by the GeoEye-1 satellite and are provided courtesy of GeoEye.
Mount Nyiragongo Volcano, Congo


Redoubt Volcano, Alaska

Comoros Volcano, Comoros Archipelago (Indian Ocean), After Eruption

Comoros Volcano, Comoros Archipelago (Indian Ocean), Before Eruption

Diamond Head Volcano, Hawaii

Galeras Volcano, Colombia

Krakatau Volcano, Indonesia

Montagu Island Volcano, South Sandwich Islands

Nyamuragira Volcano, Congo
