Inner Core Gyroscopic Precession-Sweep (ICGPS): A Unified Hypothesis Linking Antipodal Seismicity, the South Atlantic Anomaly, Geomagnetic Reversal Periodicity, and Obliquity Coupling through Dzhanibekov Dynamics
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| Format: | Recurso digital |
| Langue: | anglais |
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2026
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| _version_ | 1866901825625522176 |
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| author | Zhendong Wang |
| author_facet | Zhendong Wang |
| contents | <p>We propose a unified geophysical hypothesis treating Earth's solid inner core as a triaxial gyroscope subject to the Dzhanibekov effect (intermediate-axis instability). Gyroscopic precession generates a slowly sweeping stress arc across the mantle-crust system, selectively triggering earthquakes at mechanically weak zones while transmitting energy to antipodal points through electromagnetic diffusion when encountering stable crust.</p> <p>The model integrates four independent observational correlations: (1) antipodal earthquake pairing statistics (22% vs. 12–15% random baseline), with specific axes (Chile–Sichuan, Sumatra–Ecuador) showing elevated rates; (2) the precise antipodal alignment of Kamchatka (52.6°N, 160°E) — Earth's most seismically active zone — with the South Atlantic Anomaly core (52.6°S, 20°W), showing cross-correlation r ≈ 0.65 with 20–40 year lag; (3) inner core differential rotation periodicity (~70 years) correlating with Length-of-Day variations and decadal M8+ earthquake frequency (r ≈ 0.55); (4) the four major geomagnetic polarity chrons of the past 5.2 Ma fitting prime-number multiples of a ~100 ka base unit.</p> <p>Version 1.0 extends the framework with: (a) Euler equation simulations revealing four dynamical regimes of inner core flip behavior, identifying Earth as operating in the "dissipative + periodically forced" regime; (b) deterministic chaos analysis demonstrating that reversal timing contains irreducible randomness near the separatrix despite fully deterministic physics; (c) an obliquity–inner core coupling hypothesis constrained by angular momentum conservation (I_core/I_mantle ≈ 0.0875); (d) a coupled ball-in-shell numerical experiment proving that an internal gyroscope can spontaneously generate obliquity in an outer shell through viscous coupling, with an optimal coupling strength regime.</p> <p>The model yields falsifiable predictions: SAA entering a transitional regime ~2090–2110 CE; elevated M6.5+ seismicity near the 2025 Myanmar earthquake's antipodal point (21°S, 84°W) within 2026–2035; and detectable non-planetary periodic components in obliquity acceleration residuals. All simulation code and data sources are documented for reproducibility.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18823232 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Inner Core Gyroscopic Precession-Sweep (ICGPS): A Unified Hypothesis Linking Antipodal Seismicity, the South Atlantic Anomaly, Geomagnetic Reversal Periodicity, and Obliquity Coupling through Dzhanibekov Dynamics Zhendong Wang inner core precession Dzhanibekov effect intermediate-axis instability antipodal seismicity South Atlantic Anomaly geomagnetic reversal earthquake prediction coupled gyroscope dynamics deterministic chaos, obliquity variation core-mantle coupling stress-sweep model <p>We propose a unified geophysical hypothesis treating Earth's solid inner core as a triaxial gyroscope subject to the Dzhanibekov effect (intermediate-axis instability). Gyroscopic precession generates a slowly sweeping stress arc across the mantle-crust system, selectively triggering earthquakes at mechanically weak zones while transmitting energy to antipodal points through electromagnetic diffusion when encountering stable crust.</p> <p>The model integrates four independent observational correlations: (1) antipodal earthquake pairing statistics (22% vs. 12–15% random baseline), with specific axes (Chile–Sichuan, Sumatra–Ecuador) showing elevated rates; (2) the precise antipodal alignment of Kamchatka (52.6°N, 160°E) — Earth's most seismically active zone — with the South Atlantic Anomaly core (52.6°S, 20°W), showing cross-correlation r ≈ 0.65 with 20–40 year lag; (3) inner core differential rotation periodicity (~70 years) correlating with Length-of-Day variations and decadal M8+ earthquake frequency (r ≈ 0.55); (4) the four major geomagnetic polarity chrons of the past 5.2 Ma fitting prime-number multiples of a ~100 ka base unit.</p> <p>Version 1.0 extends the framework with: (a) Euler equation simulations revealing four dynamical regimes of inner core flip behavior, identifying Earth as operating in the "dissipative + periodically forced" regime; (b) deterministic chaos analysis demonstrating that reversal timing contains irreducible randomness near the separatrix despite fully deterministic physics; (c) an obliquity–inner core coupling hypothesis constrained by angular momentum conservation (I_core/I_mantle ≈ 0.0875); (d) a coupled ball-in-shell numerical experiment proving that an internal gyroscope can spontaneously generate obliquity in an outer shell through viscous coupling, with an optimal coupling strength regime.</p> <p>The model yields falsifiable predictions: SAA entering a transitional regime ~2090–2110 CE; elevated M6.5+ seismicity near the 2025 Myanmar earthquake's antipodal point (21°S, 84°W) within 2026–2035; and detectable non-planetary periodic components in obliquity acceleration residuals. All simulation code and data sources are documented for reproducibility.</p> |
| title | Inner Core Gyroscopic Precession-Sweep (ICGPS): A Unified Hypothesis Linking Antipodal Seismicity, the South Atlantic Anomaly, Geomagnetic Reversal Periodicity, and Obliquity Coupling through Dzhanibekov Dynamics |
| topic | inner core precession Dzhanibekov effect intermediate-axis instability antipodal seismicity South Atlantic Anomaly geomagnetic reversal earthquake prediction coupled gyroscope dynamics deterministic chaos, obliquity variation core-mantle coupling stress-sweep model |
| url | https://doi.org/10.5281/zenodo.18823232 |