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 Lageskizze der Barren Inseln. Vulkannachrichten: Barren InselnDo, 1 Nov 2018, 09:45
 Satellite image of Barren Island volcano on 1 Nov 2018 Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ...mehrFVAU03 at 09:34 UTC, 01/11/18 from ADRM [ less] [ alles lesen] Do, 25 Okt 2018, 10:44 
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. ...mehrHeavy 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.  Lava flow and lava fountaining on 20 Oct (image: Andaman Aquaholics) [ less] [ alles lesen] Di, 2 Okt 2018, 09:17  Hot spots at Barren Island volcano suggesting lava flows from the crater on the northern flank of the cone (image: MODIS / Univ. Hawaii) 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. 
Heat radiation from Barren Island during the past months (image: Mirova)  Satellite image from Barren Island yesterday showing a gas or ash plume drifting NW Mo, 20 Feb 2017, 10:19  Heat signal from Barren Island volcano (MIROVA) A new eruption is occurring at the remote and India's only active volcano. ...mehrSince mid January, pronounced heat signals - the strongest since May 2016 - have been detected on satellite imagery coming from the summit of the volcano. A team of Indian researchers from the Goa-based National Institute of Oceanography (NIO) visited the island on 23 and 26 Jan this year and confirmed new eruptive activity: [ less] [ alles lesen]
Do, 3 Mär 2016, 17:18  Steam (and ash?) plume from Barren Island on 1 March (red spot is a thermal anomaly detected by the VIIRS radiometer onboard NASA's Suomi NPP) Weak eruptive activity continues at the summit vent of the remote and rarely directly observed volcano, satellite data indicates. ...mehrA thermal hot spot has been present regularly during recent weeks, and on cloud-free days, a steam-gas plume can often be seen drifting from the island that sometimes contains some ash. What exactly the activity is like is difficult to say, but most likely is mild strombolian activity and/or the occasional presence of a (very small) lava lake in the summit crater.  MODIS hot spots at Barren Island (MIROVA) [ less] [ alles lesen]
Mi, 3 Feb 2016, 10:10  Steam / ash plume and thermal hot spot at Barren Island on 1 Feb 2016 (MODIS / VIIRS Nasa imagery) Minor eruptive activity (possibly strombolian) seems to continue on the remote island, at least intermittently. ...mehrYesterday and the day before, a weak steam and possibly ash plume was visible on satellite imagery as well as a thermal hot spot. [ less] Mo, 23 Nov 2015, 12:05  Ash and steam plume from Barren Island on 16 Nov (Landsat 8 image, annotated by Culture Volcan) 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. ...mehrA satellite image from 16 Nov shows a volcanic plume stretching several tens of kilometers from the volcano.  MODIS thermal signal from Barren Island (MIROVA) [ less] Mi, 19 Aug 2015, 16:18
 MIROVA thermal signals of Barren Island volcano An ash plume was reported this morning, at estimated 5,000 ft (1.5 km) altitude, extending 50 km to the east from the island (VAAC Darwin). This suggests that a new phase of activity is occurring at the volcano. ...mehrA moderately strong hot spot also visible on satellite data since mid August. [ less] Sa, 6 Jun 2015, 08:46
 Hot spot at Barren island (MIROVA) A steam and ash plume at estimated 10,000 ft (3 km) altitude and extending 35 km to the east from the volcano was detected yesterday on MTSAT satellite imagery (VAAC Darwin). ...mehrA moderately strong hot spot is visible at the volcano as well, suggesting that the eruptive phase that had started in April might still be going on at a low level. [ less] Mo, 27 Apr 2015, 08:22 A pilot reported an ash plume rising to 10,000 ft from the volcano. Likely, eruptive activity which had produced a new lava flow in March is still going on or has resumed.
Show more newsSo, 5 Apr 2015, 11:05 An eruption occurred in mid to late March with strombolian explosions and the effusion of a lava flow from the central cone. Sa, 7 Feb 2015, 13:27
 Hot spot detected at Barren Island via MIROVA As the Culture Volcan blog pointed out, a weak thermal anomaly was detected on satellite data above the volcano yesterday. The hot spot is weak, but could indicate some sort of activity occurring at the volcano. What could be a plume is visible on other satellite imagery, but for now, there is no confirmation of volcanic activity. Di, 4 Feb 2014, 12:28
 Gas and ash plume from Barren Island today (MODIS/Terra, NASA)
Intermittent eruptive activity continues on the small remote island next to the Andaman island group. A small steam and ash plume and a thermal hot spot can be seen on today's and yesterday's satellite images. ...mehrWithout (the rare) direct observations (usually by Indian navy), it is impossible to know exactly what type of activity is going on at the moment. It could be intermittent strombolian-type explosions, and/or lava flows or even the formation of a small temporary lava lake. [ less] Mo, 23 Dez 2013, 08:47  MODIS hot spot data (past 7 days) for Brren Island volcano (ModVolc, Univ. Hawaii) A significant thermal anomaly remains present at the volcano which is likely in some sort of eruptive activity (lava flows?). However, no plumes could be detected on satellite imagery. An aerial survey by the Indian Navy could give more clues what is going on.
So, 15 Dez 2013, 16:50  MODIS hot spot data (past 7 days) for Barren Island volcano (ModVolc, Univ. Hawaii) New and relatively strong thermal signals are visible on satellite data. They suggest renewed (or increased) activity, perhaps in the form of lava flows. Do, 17 Okt 2013, 11:20 Eruptive activity continues. An ash plume was spotted on satellite imagery this morning rising to 12,000 ft (3.6 km) and drifting 15 nautical miles to the NW (VAAC Darwin). Mi, 16 Okt 2013, 12:52
 MODIS hot spot data (past 7 days) for Barren Island volcano (ModVolc, Univ. Hawaii) A new eruption occurred this week. This was confirmed by the Indian Navy (via twitter) who reported "smoke" and lava seen on the island from a surveillance plane. A large hot spot is visible on recent MODIS satellite data on the remote volcanic island, located in the Andaman Islands archipelago. ...mehrNo details about the nature of the eruption are available at the moment, but the description and distribution of the hot spots suggests that it might be an explosive-effusive eruption with lava flows (possibly reaching the sea. A satellite image from yesterday shows what likely is a steam/gas plume, but doesn't allow to recognize details.  Terra satellite image from yesterday showing Barren Island with what might be a small eruption plume (NASA) [ less] [ alles lesen] Do, 15 Jan 2009, 22:43 Satellite imagery reported that during 7-8 and 10-11 January ash plumes from Barren Island were seen.
Fr, 21 Nov 2008, 20:22 A pilot reported a lava flow on Barren island on 17 November and also a ash plume was seen. Do, 6 Apr 2006, 08:41
Barren Island remains active. Pilots frequently observe ash plumes at around flight level 100. The volcano continues to emit small to moderate amounts of ash forming plumes travelling beneath 10-15000 ft (ca. 3-4,5 km a.s.l.) and extending for about 20 nm (30-35 km). -->More on Barren Island Show more newsSo, 19 Mär 2006, 23:56
The volcano on Barren Island is still very active as news reports. The height of the cone has increased by about 50 metres during the past nine months since its eruption started last May. A team of scientists from India landed on the island to study the recent eruption. Lava flows have covered the entire north-western face of the island destroying the lone landing site. ->More on Barren Island Mi, 9 Nov 2005, 18:51 According to local newspapers, the eruption of Barren Island continues or has resumed. A lava flow is reported to have reached the sea. Do, 16 Jun 2005, 19:08 According to Indian news sources, the eruption is going on and has intensified. Lava fountaining, and strombolian explosions are ejecting material to up to 100m above the new vent, which has formed at the SW rim of the existent crater and might construct a new cone.
A team of scientists from the Geological Survey of India (GSI) visited the eruption site on June 13. Mi, 15 Jun 2005, 07:29 The eruption at Barren Island continues with moderate strombolian activity. According to the Indian press, the authorities of the Andaman islands are planning to arrange organized sight-seing boat trips to Barren Island in order to give tourists the unique opportunity to watch Inddia's only active volcano from the sea, as long as the eruptino still continues. The cost of the overnight-trip from Port Blair, about 140 away has yet to be fixed.
Fr, 3 Jun 2005, 12:54 After no observation was possible for some days due to heavy monsoon rains, it has been confirmed that the eruptino is continuing. Pilots from aircraft have observed small lava fountains and ash plumes. Mo, 30 Mai 2005, 08:14 India's only active volcano, the tiny uninhabited Barren island in the Dec. 2004 tsunami-hit Andaman and Nicobar archipelago has started an eruption as news reports state after an Indian coast guard ship had sighted a thick plume of smoke. Hintergrund-Info:
Die Barren Inseln befinden sich 135 km nordöstlich von Port Blair in der Andamanischen See. Die Barreninseln gehören zu Indien und sind der einzige Vulkan,d er in historischer Zeit auf dem vulkanischen Inselarchipel aktiv war, das sich zwischen Sumatra und Burma (Myanmar) erstreckt. The 354-m-high island is the emergent summit of a volcano that rises from a depth of about 2250 m.
Auf der nur 354 m hohen Insel ist der Vulkan die einzige, auffällige Erhebung, die aber in einer Meerestiefe von 2250 m beginnt. The small, uninhabited 3-km-wide island contains a roughly 2-km-wide caldera with walls 250-350 m high. Die kleine (3km im Druchmesser), unbewohnte Insel beherbergt eime ca. 2 km weite Kaldera deren Wände 250-350 m hoch sind. Die Kaldera, die sich zur See hin öffnet, entstand während einer heftigen Eruption im Pleistozän und produzierte starke pyroklastische Glutströme und Ascheablagerungen.
Die Landschaft wird durch einen relativ frischen Vulkankegel in der Mitte der Kaldera beherrscht, der während historischer Eruptionen entstand. Lavaströme haben die Kaldera angefüllt und erreichten das Meer an der Westküste im 19. Jahrhundert und in den Jahren 1991 & 1995.
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Quelle: GVP, Smithsonian Institution
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