Mw 7.1 Southeast Indian Ridge

updated 20 February 2025

report

On 4 December 2015 a major earthquake occurred at Southeast Indian Ridge at a depth of 10 km. The seismic event occurred at 22:24:53 UTC and had an estimated moment magnitude (Mw) 7.1.

The estimated primary trigger of this seismic event is a convergence of critical lunar geometry on 2 December 2015.

On 2 December a lunar conjunction with Neptune converged with semi-right angle lunar geometry involving Mars and Uranus, as Earth was positioned closely between these two planets (planetary conjunctions with these planets occurred on 6 December). The earthquake occurred about 18 hours after a lunar conjunction with Jupiter.

#MoonNeptune #MoonJupiter #lsra


SSGI

SSGI chart
SSGI COMMON graph of critical planetary (PG) and lunar (LG) geometry

SSGI chart
SSGI SUM graph of critical planetary (PG) geometry

geometry

Earth-Sun-Saturn          2015-11-30, 00:18:42    0°00'00"
Sun-Mars-Jupiter          2015-12-01, 01:40:19    0°00'00"

Mercury: Earth-Neptune    2015-11-27, 01:35:01   90°00'00"
Mercury: Venus-Uranus     2015-11-27, 03:58:32   90°00'00"
Mercury: Venus-Jupiter    2015-11-27, 10:52:44   45°00'00"
Venus:   Mercury-Earth    2015-11-27, 18:03:20   90°00'00"
Mercury: Venus-Saturn     2015-11-27, 20:56:30  135°00'00"
Earth:   Venus-Neptune    2015-11-28, 07:57:53  135°00'00"
Earth:   Venus-Saturn     2015-11-28, 12:54:17   45°00'00"
Venus:   Mercury-Neptune  2015-11-28, 16:21:05   45°00'00"
Sun:     Mercury-Venus    2015-11-28, 20:52:17  135°00'00"
Mercury: Venus-Neptune    2015-11-29, 09:27:20  135°00'00"
Venus:   Earth-Neptune    2015-11-29, 10:40:47   45°00'00"
Venus:   Mercury-Saturn   2015-11-30, 00:26:42   45°00'00"
Mercury: Jupiter-Saturn   2015-11-30, 22:37:58   90°00'00"
Sun:     Earth-Neptune    2015-12-01, 11:41:36   90°00'00"
Venus:   Mercury-Jupiter  2015-12-01, 15:17:32  135°00'00"
Venus:   Earth-Saturn     2015-12-01, 22:52:48  135°00'00"
Sun:     Earth-Jupiter    2015-12-03, 11:07:08   90°00'00"
Venus:   Earth-Jupiter    2015-12-04, 10:04:46  135°00'00"
Earth:   Mercury-Jupiter  2015-12-04, 12:43:20   90°00'00"
Sun:     Earth-Mars       2015-12-04, 22:57:11   90°00'00"
Mercury: Venus-Earth      2015-12-05, 17:34:55   45°00'00"
Sun:     Mercury-Uranus   2015-12-06, 22:11:55   90°00'00"

Moon-Earth-Neptune        2015-12-02, 23:49:44    0°00'00"
Earth-Moon-Jupiter        2015-12-04, 04:34:30    0°00'00"
Earth-Moon-Mars           2015-12-06, 02:10:33    0°00'00"
Moon-Earth-Uranus         2015-12-06, 08:11:03    0°00'00"

Earth:   Moon-Jupiter     2015-11-27, 03:05:10   90°00'00"
Earth:   Moon-Mars        2015-11-28, 11:15:18   90°00'00"
Earth:   Moon-Uranus      2015-11-29, 00:39:13   90°00'00"
Earth:   Moon-Sun         2015-11-29, 09:35:03  135°00'00"
Earth:   Moon-Neptune     2015-11-29, 09:58:24  135°00'00"
Earth:   Moon-Saturn      2015-11-29, 10:35:05  135°00'00"
Earth:   Moon-Venus       2015-11-29, 12:26:36   90°00'00"
Earth:   Moon-Mercury     2015-11-29, 23:13:05  135°00'00"
Earth:   Moon-Jupiter     2015-11-30, 11:32:51   45°00'00"
Earth:   Moon-Mars        2015-12-02, 02:46:57   45°00'00"
Earth:   Moon-Uranus      2015-12-02, 13:19:21  135°00'00"
Earth:   Moon-Saturn      2015-12-03, 01:18:27   90°00'00"
Earth:   Moon-Sun         2015-12-03, 07:15:25   90°00'00"
Earth:   Moon-Venus       2015-12-03, 11:45:24   45°00'00"
Earth:   Moon-Mercury     2015-12-04, 03:25:48   90°00'00"
Earth:   Moon-Neptune     2015-12-06, 19:06:56  135°00'00"
Earth:   Moon-Saturn      2015-12-06, 21:27:38   45°00'00"
  					

map

earthquake map
earthquake map

OK
This website is using cookies. Terms and conditions, Privacy Policy