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Vanuatus Lopevi Volcano #

Vanuatus Lopevi Volcano
Image courtesy of NASA., under PD
Vanuatus Lopevi Volcano released a plume on 3 May 2007 (center of photo) that was captured by NASAs Aqua satellite. The US Air Force Weather Agency reported an extensive area of vog resulting from the volcanic eruption. When gases from a volcano - particularly sulfur dioxide - react with oxygen, water, dust, and sunlight, volcanic smog (or vog) results.

Besides Lopevi Lopévi, Malampa, Vanuatu and its neighboring islands, this image shows the volcanic plume blowing westward away from the volcano. The plume appears as a small, mostly opaque puff of gray-beige. The resulting area of vog, which appears as a more transparent, dingy-gray haze, dwarfs the diminutive plume.

Lopevi is a stratovolcano composed of alternating layers of solidified lava, hardened ash, and volcanic rocks. One of the island nations most active volcanoes, this volcanic island is only about 7 km (4 mi) wide. Eruptions have been recorded at Lopevi since the middle of the 19th century. Vanuatus two major islands of Espiritu Santo and Malakula appear in the upper left.