Mw 6.6 East of South Sandwich Islands

updated 26 May 2021

On 3 April 2021 a strong earthquake occurred East of the South Sandwich Islands. The seismic event occurred at 01:16:39 UTC and had an estimated moment magnitude (Mw) 6.6.

Planetary alignments involving Mercury occurred on 30 March and 2 April, most critical of which were Earth-Mercury-Neptune and Sun-Mercury-Saturn. A warning for possible larger seismic activity was issued on the 30th, but the potential magnitude range was uncertain.

Earth-Mercury-Neptune    2021-03-30,  3:19:13  351°03'51"
Sun-Mercury-Saturn       2021-03-30, 18:04:28  306°03'50"
Sun-Mercury-Jupiter      2021-04-02,  6:43:46  314°35'33"
              



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

atmospheric electricity
atmospheric electricity prior and during the earthquake

 

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