GLOVIZ
Any two series in the database

Metric explorer

Pick any two of the 400 longest series, from any of the 18 sources, and GLOVIZ pairs them on time and plots one against the other. Correlation is computed server-side over the matched points; Orbit's Correlations tool opens on the time chart so you can see the same question two ways. Correlation is not causation, and the point of this page is how easy it is to find a convincing coincidence.

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Vertical
Strong positive · r = 0.82892 matched observations
Earthquakes per day (M4.0+) and Earthquakes per day, Asia & OceaniaUSGS Earthquake Hazards Program against USGS Earthquake Hazards Program · two axes, one time line
Sources: USGS Earthquake Hazards Program, USGS Earthquake Hazards Program
One against the other92 points, matched on the nearest shared timestamp
Sources: USGS Earthquake Hazards Program, USGS Earthquake Hazards Program

Looking for something curated instead? Try the stories.