1. Status: INSIDE TSW
TSW Window: 1886-08-25T12:53:35Z to 1886-09-02T12:53:35Z
Syzygy Time: 1886-08-29T12:53:35Z
Perigee Time: 1886-08-29T09:00:00Z
Sublunar Latitude: 9.1890481514°
Sublunar Longitude: -13.4356380357°
TSB Lower Latitude: -5.8110°
TSB Upper Latitude: 24.1890°
Radial Stress
Syzygy: 7.9634970776 kPa
Perigee: 7.964682962 kPa
Coulomb Stress
Syzygy: 4.7780982466 kPa
Perigee: 4.7788097772 kPa
Target Faults
Indonesian Arc / Papua New Guinea, Philippine Plate / Mexico / Caribbean/ Red Sea Rift
Alignments
Perigee In Tsw: Yes
Perihelion In Tsw: No
Mars In Tsw: No
Venus In Tsw: Yes
Super Tsw: Yes
Countries in High Seismic Zone
- Indonesia
- Ecuador
- Mexico
- Brazil
- Solomon Islands
- Tiwan
- Philippines
- Saudi Arabia
- Thailand
- Papua New Guinea
- Sudan
- Vietnam
The August 31, 1886, Charleston Earthquake (M_w approx 7.0–7.3) stands as one of the most significant intraplate events in North American history. Our data reveals that this disaster occurred during a Super TSW (Tidal Stress Window) with nearly perfect synchronization between the Moon’s phase and its distance to Earth.
2. The 1886 Super-Alignment
The alignment on the day of the earthquake was exceptionally tight:
- Syzygy-Perigee Sync: The Moon reached Perigee at 09:00 UTC and Syzygy (New Moon) at 12:53 UTC—a gap of less than 4 hours.
- Stress Intensity: Our data shows a Coulomb Stress of 4.77 kPa. For a stable continental region like South Carolina, where faults are under constant but slow-moving regional stress, this tidal pulse acted as a potent mechanical trigger.
- Venus Influence: Our data notes Venus in TSW: Yes. In some planetary-tidal models, the gravitational influence of Venus (Earth’s closest planet) can slightly modulate the Earth-Moon tidal envelope, adding an extra layer of complexity to the stress window.
- The “Tidal Nudge”: Because intraplate faults accumulate strain very slowly, they can remain at a “critical state” for centuries. Your model suggests that the 7.96 kPa Radial Stress was the decisive force that “unzipped” these ancient buried structures.
- Caribbean: The shaking from the Charleston quake was so powerful that it was felt clearly in Cuba, which fell within our Tidal Stress Belt (TSB).
