Mw 6.6 Northern East Pacific Rise
updated 7 August 2021

On 29 April 2016 a strong earthquake occurred at the Northern East Pacific Rise at a depth of 10 km. The seismic event occurred at 01:33:37 UTC and had an estimated moment magnitude (Mw) 6.6.

The earthquake occurred during a high lunar peak (17) on the 28th and 29th, just after the Mercury-Sun-Venus alignment, which added to the already critical geometry that started with another high lunar peak on the 25th, which also reached index 17, accompanied by multiple wide planetary geometry (WPG) peaks. A major earthquake also occurred on the 28th as a result of this geometry.

Mercury-Sun-Venus        2016-04-28,  8:12:07   12°59'30"
SSGI chart
SSGI depiction of planetary (PG) and lunar (LG) geometry


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