Shakers Are Piling Up
http://standeyo.com/NEWS/10_Earth_Changes/100622.Earthquakes1992-20...
"Periodically quake data are "adjusted" by USGS. For example, in
rechecking statistics for 2007, USGS had previously noted 5 mag. 8.0-9.9
events. Now it shows 4. When this occurs
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