Mw 6.7 New Ireland Region, P.N.G.
updated 7 August 2021

On 31 August 2016 a strong earthquake occurred in New Ireland Region, P.N.G. at a depth of 513 km. The seismic event occurred at 03:11:36 UTC and had an estimated moment magnitude (Mw) 6.7.

The earthquake occurred after four planetary alignments from the 27th to the 29th, in particular Mercury-Venus-Jupiter and Venus-Mercury-Earth. Lunar geometry peaked at the same time on the 28th and into the 29th, reaching index 16. The earthquake was preceded by a major earthquake on the 29th and followed by another major earthquake on 1 September. In the second half of August 2016 no less than ten planetary alignments occurred, resulting in three magnitude 7 earthquakes peaking Mw 7.5 on the 19th. In addition, two strong earthquakes occurred peaking magnitude 6.8. Similarly critical was December 2016, which resulted in major seismic activity throughout the month.

Earth-Venus-Jupiter      2016-08-27, 22:23:55  177°08'17"
Mercury-Venus-Jupiter    2016-08-28, 11:53:26  177°04'18"
Venus-Mercury-Earth      2016-08-29,  6:18:44  358°46'05"
Sun-Mercury-Mars         2016-08-29, 20:33:42  298°06'48"
          
SSGI chart
SSGI depiction of planetary (PG) and lunar (LG) geometry

 

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