Volcano news & eruption updates: Barren Island
Barren Island (Indian Ocean, India): new eruptive phase
Wednesday Nov 06, 2019 10:44 AM | BY: T
Presence of lava in the central cone's crater of Barren Island on a recent satellite image (image: Sentinel Hub)
Satellite image from 23 Oct showing an ash plume
After a relatively calm period during the summer months with little or no activity, it seems to have picked up again since around 23 October this year.
Heat emission from Barren Island volcano during the past weeks (image: Mirova)
Intermittent, but frequent thermal signals and small ash plumes are occasional visible on satellite imagery, showing that mild activity has been occurring at the central cone of Indias's only active volcano.
The nature of this activity is likely similar to previous eruptions (such as during Jan-May 2019), i.e. strombolian to vulcanian explosions and occasional small lava flows.
Barren Island Volcano Volcanic Ash Advisory: ERUPTION TO FL030 OBS EXT TO SW AT 16/0820Z. to 3000 ft (900 m)
Saturday, Mar 16, 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 3000 ft (900 m) altitude or flight level 030 and is moving at 10 kts in SW direction. ... [more]
Barren Island Volcano Volcanic Ash Advisory: VA OBS TO FL040 EXT SW AT 14/1110Z OBS VA DTG: 14/1130Z to 4000 ft (1200 m)
Thursday, Mar 14, 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 4000 ft (1200 m) altitude or flight level 040 and is moving at 5 kts in SW direction. ... [more]
Barren Island Volcano Volcanic Ash Advisory: VA OBS TO FL060 EXT W AND TO FL040 EXT E AT 07/1040Z. to 4000 ft (1200 m)
Thursday, Mar 07, 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 4000 ft (1200 m) altitude or flight level 040 . ... [more]
Wednesday, Feb 27, 2019
The volcano remains active as a satellite image from earlier today shows. A small ash plume can be seen which suggests that the volcano is in a phase of intermittent small strombolian-type explosions. ... [more]
Sunday, Jan 27, 2019
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ... [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