Right now, I believe that 10.54 VIR and 10.50 SAG are the two most important "Critical Points" due to the closest aspect of each, and both of these points have an Arabic conjunct either a Midpoint or a Persona. Due to the fact I have more Harmonics, Personas, Antiscia and other Arabics yet to explore, I may find two critical points (or more) that are closer than these two points. But for the time being, these two hot points shine hotter than any other in my astrological findings.
I have no idea what the quake formulas refer to on this additional Arabics page.
There is controversy/debate about switching some of the Arabic formulas. From my online research, people either adhere to Theory 1, or Theory 2. I've not seen Theories 3 and 4 discussed before, so I proposed them on my own. I used Theory 2 in my above analyses.
I've just started researching the Transneptunian planets -- research on them is still difficult to find online.
If the Sun rules the 5th house...(it makes common sense that)...it would rule the 5th Harmonic. It is CONJUNCT 3 Arabics (with the same formula), as well as a Midpoint.
If Jupiter rules the 9th house...it would rule the 9th Harmonic. It is CONJUNCT the square of my moon by 0.01. The other respective rulerships of Harmonics via this theory however, I have failed to find anything else as breathtaking.
It is possible that Vesta is the most powerful of the 34 placings, due to the fact that it is the highest placement in the sky (nearest the MC), in addition to Vesta being conjunct a Harmonic. Also it is possible that Nessus is the most powerful planet, because it is the lowest planet (nearer to the IC than Vesta is to the MC), but the Nessus influences are still being studied for intrepretation.
I have never seen "Phoenix Zone" before, so I created that term myself. It is the opposite of the Combustion Zone. Whereas the combustion zone is 8.30 on both sides of the Sun (life burning into ashes), the Phoenix zone is 8.30 on both sides of the Opposition Sun (ashes burning into life). What is interesting to note, is that Maia is conjunct the beginning of the Phoenix Zone. This term was created 7:18 am September 19, 2004.
It is said to look at the persona chart of the planet that is the ruler of the ascendant. In this case, I looked at my Neptune Persona. What really stands out on it is that the Moon is PRECISELY square Pluto.
I just found the Betty Arc, but I found a discrepancy on this page. It says 4.28 is used for 7 years, but this is inaccurate, because equally it averages out to 31.16 degrees for a 7-year cycle. I did some math to try 4.18 for 7 years but this created a closeness at 30.03. I then figured out on a 3rd mathematical solution (all 3 done longhand) that 4.17 is used 6 times, and 4.18 is used once, it makes sense to use 4.18 on that 4th year, since it is centered between 3 years on both sides. This solution was "corrected"/found at 6:31 am September 24, 2004. I think an alternative name for the "Betty Arc" is the "Uranian Sun" (term created at 6:46 am).