Nuclear test statistics

I've done a fair number of blogs on small earthquakes in areas - Dillsburg, PA; Albany, NY - where the seismic threat is, after all, not very high.

Here are some historical statistics from 1945-2006 on nuclear testing (note the log scale on the y-axis):

Source: CTBTO (Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization)

This is a graph of tests, not warheads. Maybe we'll look at that in another post.