Mw 6.9 Santa Cruz Islands
updated 30 May 2021 UTC

On 18 July 2015 a strong earthquake occurred at the Santa Cruz Islands. The seismic event occurred at 02:27:33 UTC and had an estimated moment magnitude (Mw) 6.9.

The earthquake was preceded by the critical Earth-Mercury-Mars alignment on the 16th and also the Mercury-Sun-Saturn alignment on the 14th. Lunar geometry was high on the 15th (geometry index 12), which was followed by three WPG peaks on the 16th and 17th.

Mercury-Sun-Saturn       2015-07-14, 12:34:46  243°01'15"
Earth-Mercury-Mars       2015-07-16,  4:08:38  104°13'02"
SSGI chart
SSGI depiction of planetary (PG) and lunar (LG) geometry


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