Mw 6.7 West Chile Rise

updated 24 May 2021

On 3 February 2021 a strong earthquake occurred at the West Chile Rise. The seismic event occurred at 05:23:44 UTC and had an estimated moment magnitude (Mw) 6.7.

A convergence of two planetary alignments occurred on 2 February while lunar geometry was high (SSGI 16). While the Mercury-Sun-Venus alignment typically results in seismic activity just over magnitude 6.0 and the Mars-Jupiter-Saturn alignment was considered less critical, a warning was not issued. Two alignments on 29 January likely also contributed to this seismic increase as it occurred within 5 days.

Earth-Sun-Jupiter        2021-01-29,  1:44:15  309°04'53"
Sun-Mercury-Mars         2021-01-29, 14:25:49   80°32'46"
Mercury-Sun-Venus        2021-02-02,  4:37:57  283°02'15"
Mars-Jupiter-Saturn      2021-02-02, 19:09:11  299°03'39"
              

SSGI chart
SSGI depiction of planetary (PG) and lunar (LG) geometry

atmospheric electricity
atmospheric electricity prior and during the earthquake

 

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