On 24 October 2017 a strong earthquake occurred in the Banda Sea at a depth of 550 km. The seismic event occurred at 10:47:47 UTC and had an estimated moment magnitude (Mw) 6.5.
A series of five planetary alignments from 19 to 23 October preceded the earthquake. A convergence of planetary geometry like this has the potential to trigger major seismic activity, depending on the amount of critical stress in Earth's crust. This time only a medium sized strong earthquake occurred, although it should be mentioned that Mercury was not part of any of these alignments. Note that most of the alignments occurred after a major lunar peak.
Sun-Earth-Uranus 2017-10-19, 17:20:22 26°16'25" Mars-Venus-Neptune 2017-10-21, 13:06:05 342°50'24" Sun-Venus-Mars 2017-10-22, 9:17:24 162°27'02" Venus-Sun-Neptune 2017-10-22, 15:45:51 342°53'19" Mars-Sun-Neptune 2017-10-23, 9:35:06 342°53'35"