Out-of-sample (2020-2025): r(+15d)=+0.045, p=0.994 — not significant.
Combined (1976-2025): p=0.039 (2.1σ), sinusoid P=9.95 yr, BF=27.5.
Bayes factor strongly favours solar-cycle modulation over a constant,
confirming the correlation is driven by the shared ~10-year solar cycle
rather than a causal CR→seismic mechanism.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>