Andaman Volcano spews smoke & lava

India's only live volcano in the Andaman and Nicobar Islands has again started spewing smoke and lava. After lying dormant for 150 years, Barren Island volcano erupted in 1991 and, since then, it has been showing sporadic activity, scientists of Goa-based National Institute of Oceanography (NIO) said.

Researchers from CSIR and NIO have sampled the sediments and water in the vicinity of the volcano and recovered coal-like black pyroclastic material representing proximal volcanic ejecta. These samples will help in deciphering the nature of present and past volcanic activity in the region.

The Andaman basin is an active back-arc spreading basin and is known for its strong seismicity , many submarine volcanoes and hydrothermal activity. Scientists from CSIRNIO have been surveying the Andaman basin and they have identified many small submerged volcanoes in a linear chain called a volcanic arc.

The volcanic island is uninhabited and the northern part of the island is, as the name suggests, barren and devoid of vegetation. Indian citizens can visit the volcanic island by chartered boats after obtaining permission of the forest department in Port Blair.

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