Volcano news & eruption updates: Barren Island
Barren Island volcano (Indian Ocean): eruption continues
Thursday Oct 25, 2018 10:44 AM | BY: T
Sentinel satellite image from 23 Oct showing lava flows on Barren Island
The mainly effusive eruption of the volcano continues. Recent satellite images show an active field of fresh lava flows towards the northwest form the active cone.
Lava flow and lava fountaining on 20 Oct (image: Andaman Aquaholics)
Heavy steaming is occurring from the summit vent and possibly also from the coast where lava is likely entering the Indian Ocean.
Andaman Aquaholics, a small local company that charters boat trips to the island, sent us pictures from last week showing the active lava flow and strombolian activity or fountaining from the summit vent.
Tuesday, Oct 02, 2018
A new eruption seems to be going on at the remote island (the only active volcano of India): since around 25 Sep, a strong thermal signal has been visible on satellite data and suggests lava flows on the north flank of the active cone, probably reaching the NW coast. [more]
Monday, Feb 20, 2017
A new eruption is occurring at the remote and India's only active volcano. ... [more]
Thursday, Mar 03, 2016
Weak eruptive activity continues at the summit vent of the remote and rarely directly observed volcano, satellite data indicates. ... [more]
Wednesday, Feb 03, 2016
Minor eruptive activity (possibly strombolian) seems to continue on the remote island, at least intermittently. ... [more]
Monday, Nov 23, 2015
With all likelihood, the volcano continues to be in eruption. It is very remote and rarely directly observed, but satellite imagery regularly show albeit weak thermal signals - again present more or less continuously since August and more frequent since October this year. ... [more]
Background:Barren Island, a possession of India in the Andaman Sea about 135 km NE of Port Blair in the Andaman Islands, is the only historically active volcano along the N-S-trending volcanic arc extending between Sumatra and Burma (Myanmar). The 354-m-high island is the emergent summit of a volcano that rises from a depth of about 2250 m. The small, uninhabited 3-km-wide island contains a roughly 2-km-wide caldera with walls 250-350 m high. The caldera, which is open to the sea on the west, was created during a major explosive eruption in the late Pleistocene that produced pyroclastic-flow and -surge deposits. The morphology of a fresh pyroclastic cone that was constructed in the center of the caldera has varied during the course of historical eruptions. Lava flows fill much of the caldera floor and have reached the sea along the western coast during eruptions in the 19th century and more recently in 1991 and 1995.
Source: GVP, Smithsonian Institution