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Thu, 5 Nov 2020, 09:10
An ash plume from Barren Island volcano (image: @georgetgeorge/twitter)
After a one year calm period with little or no activity, it seems to have picked up again since around 6 November last year. read all
Location map of the Andaman Islands.
Location map of the Andaman Islands.
Map of the Andaman Islands with the location of Barren Island.
Map of the Andaman Islands with the location of Barren Island.

Earthquakes near Barren Island volcano during the year 2020

Updated 2 Mar 2021 10:24 GMT -
During 2020, Barren Island volcano was shaken by 1 quake of magnitude 6.1, 1 quake of magnitude 5.7, and 7 quakes between 4.0 and 5.0.
Biggest quake: 6.1 quake Andaman Sea, 257 km east of Port Blair, India, 17 July 2020 14:03 GMT
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Depth and magnitude of quakes versus time plot
Earthquake depth plot
Showing quakes magnitude 0.1 or higher (9 quakes):
Date and timeMag
Depth
DistanceLocationDetailsMap
Mon, 20 Jul 2020 (GMT) (1 earthquake)
20 Jul 2020 22:52:49 GMT
4.5

10 km
(109 km)238 km east of Port Blair, South Andaman, Andaman and Nicobar Islands, India 1 reportMoreMap
Fri, 17 Jul 2020 (GMT) (7 earthquakes)
17 Jul 2020 18:33:01 GMT
5.7

10 km
(113 km)Andaman Sea, 239 km east of Port Blair, India MoreMap
17 Jul 2020 17:45:23 GMT
4.8

11 km
(140 km)261 km east of Port Blair, South Andaman, Andaman and Nicobar Islands, India MoreMap
17 Jul 2020 14:43:21 GMT
4.6

10 km
(118 km)232 km east of Port Blair, South Andaman, Andaman and Nicobar Islands, India MoreMap
17 Jul 2020 14:03:42 GMT
6.1

10 km
(144 km)Andaman Sea, 257 km east of Port Blair, India 3 reportsMoreMap
17 Jul 2020 13:29:06 GMT
4.9

10 km
(122 km)233 km east of Port Blair, South Andaman, Andaman and Nicobar Islands, India MoreMap
17 Jul 2020 05:37:18 GMT
4.6

10 km
(132 km)250 km east of Port Blair, South Andaman, Andaman and Nicobar Islands, India MoreMap
17 Jul 2020 05:01:13 GMT
4.8

10 km
(141 km)247 km east of Port Blair, South Andaman, Andaman and Nicobar Islands, India MoreMap
Mon, 27 Apr 2020 (GMT) (1 earthquake)
27 Apr 2020 19:54:29 GMT
4.5

10 km
(122 km)69 km north of Port Blair, South Andaman, Andaman and Nicobar Islands, India 1 reportMoreMap
Estimated combined seismic energy released: 1.2 x 1014 joules (32.4 gigawatt hours, equivalent to 27877 tons of TNT or 1.7 atomic bombs!) More info

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Ash plume from Barren Island volcano. Image Source: NASA Space Shuttle Date: March 14, 1995
Ash plume from Barren Island volcano. Image Source: NASA Space Shuttle Date: March 14, 1995
Comments: This oblique shot shows a large eruption plume dispersing westwards towards the main island group. From the photographs, it seems that there are three levels of the eruption plume: the first is low level, near the base of the eruption column and spreading southwest (upper left in this image). The other two levels are higher, with a suggestion of a due westerly plume (right in this image) overlain by a less visibly dense west-southwest plume of slightly different composition (upper right).

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