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Worldwide Strong Earthquakes (M6+) vs US Urban Population
Worldwide Strong Earthquakes (M6+) and US Urban 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
- 0.24 to 0.63
- Correlation with the time trend removed
- +0.38
Sources
- Worldwide Strong Earthquakes (M6+) (earthquakes per year): USGS. Annual worldwide count of magnitude 6+ earthquakes (USGS ComCat).
- US Urban Population (% of total): World Bank. US Urban Population (World Bank indicator SP.URB.TOTL.IN.ZS).
Related pairs
- US Rural Population vs US Urban Population (r = -1.00)
- US Population vs US Urban Population (r = +0.97)
- US Adult Obesity vs US Urban Population (r = +0.95)
- US Median Age vs US Urban Population (r = +0.95)
- US Electricity Generation vs US Urban Population (r = +0.95)
- US Life Expectancy vs US Urban Population (r = +0.95)
Correlation does not imply causation. How the verdict is worked out.