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Worldwide Strong Earthquakes (M6+) vs US Rural Population

Worldwide Strong Earthquakes (M6+) and US Rural Population correlate at r = -0.45 over 66 years (1960–2025), p = 1.3e-4. With the time trend removed, r = -0.38. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 1.3e-4) and the association survives trend removal (detrended r = -0.38). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.45
p-value
1.3e-4
Years compared (n)
66 (1960–2025)
95% confidence interval
-0.63 to -0.24
Correlation with the time trend removed
-0.38

Sources

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Correlation does not imply causation. How the verdict is worked out.