Photographer's Note

Barren Island (BI) is a subduction-related volcanic island lying in the northeastern Indian Ocean, about 750 km north of the northern tip of Sumatra. Rising from a depth of 2300 m on the Andaman Sea floor, BI has a submarine volume estimated at 400 km3, but the island is just 3 km across, reaches a maximum elevation of 355 m, and has a subaerial volume of only 1.3 km3. The first historical eruption began in 1787 when a cinder cone grew in the center of a pre-historical caldera 2-km in diameter and sent lava flows westward to reach the sea; activity continued intermittently until 1832. Two subsequent eruptions modified the central cone and also sent lava flows westward to reach the sea in 1991 and 19941995.

Courtesy: Andaman Administration & IN

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