[aerohead]

The formulas for the celestial mechanics are available.
The physical criteria are available.
The Moon having the greatest outside impact on seismicity is an established fact.
The Sun, having the second strongest effect is an established fact.
Jupiter having less than one- ten-millionth the gravitational effect on Earth is an established fact.
Jupiter having less than one-ten-millionth the magnetic field strength of the Sun is an established fact.
As of 2018, scientists had the capacity to solve 'N-Body problems', dealing with 1-billion celestial bodies simultaneously. An analysis much superior to simple planetary alignments.
Any attribution concerning 'Space' effects and seismic activity on Earth is an invocation which isn't forbidden in a free society, however, it may not be necessary, given 'conventional' Earth dynamics which already seem adequate in explaining earthquake occurrences.