Mw 6.7 Costa Rica
updated 28 August 2021

On 13 November 2017 a strong earthquake occurred in Costa Rica at a depth of 10 km. The seismic event occurred at 02:28:22 UTC and had an estimated moment magnitude (Mw) 6.7.

It was the second strong earthquake in two days that followed on the Venus-Mercury-Neptune alignment on the 10th, while Earth was lining up with Venus and Jupiter, which may have somewhat contributed to the seismic increase, although the Earth-Venus-Jupiter alignment is generally not a very critical alignment. Of significance is the Moon's alignment with Neptune within days of the Venus-Mercury-Neptune alignment.

Venus-Mercury-Neptune     2017-11-10,  8:17:05  343°40'45"
Earth-Venus-Jupiter       2017-11-13,  8:10:06  217°06'11"
Mars-Mercury-Neptune      2017-11-14, 21:19:29  343°32'13"

Moon-Earth-Neptune        2017-11-12, 12:49:16  341°14'53"
SSGI chart
SSGI depiction of planetary (PG) and lunar (LG) geometry


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