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Sunspot Number vs Worldwide Strong Earthquakes (M6+)
Sunspot Number and Worldwide Strong Earthquakes (M6+) correlate at r = -0.27 over 66 years (1960–2025), p = 0.031. With the time trend removed, r = -0.22. Holds up after detrending.
Verdict: Holds up after detrending. Statistically significant (p = 0.031) and the association survives trend removal (detrended r = -0.22). Correlation still isn't causation, but this one isn't an obvious artifact.
- Pearson r
- -0.27
- p-value
- 0.031
- Years compared (n)
- 66 (1960–2025)
- 95% confidence interval
- -0.48 to -0.02
- Correlation with the time trend removed
- -0.22
Sources
- Sunspot Number (yearly mean): SILSO. Yearly mean total sunspot number (SILSO, Royal Observatory of Belgium).
- Worldwide Strong Earthquakes (M6+) (earthquakes per year): USGS. Annual worldwide count of magnitude 6+ earthquakes (USGS ComCat).
Related pairs
- US Alcohol Consumption vs Sunspot Number (r = -0.70)
- Worldwide Strong Earthquakes (M6+) vs US Gross Savings (r = -0.66)
- US Dollar to Euro vs Sunspot Number (r = +0.66)
- US Dollar to British Pound vs Worldwide Strong Earthquakes (M6+) (r = -0.63)
- Sunspot Number vs US Health Expenditure (r = -0.58)
- Worldwide Strong Earthquakes (M6+) vs US College Enrollment (r = +0.54)
Correlation does not imply causation. How the verdict is worked out.