This was predicted by the Zetas, who predicted an exponential increase in quakes after years of what they termed a lineal increase. Checking the data at the Advanced National Seismic System, comparing apples to apples for the months of August-September during the years 2004 though 2007, we find a greater than lineal increase in 2007. This was for quakes in the 4.9 to 5.9 Richter range, essentially Richter 5-6. The USGS has a reputation for reducing Richter or simply dropping quakes, a practice they instituted in 2003. From 2006-2007 quakes in this range took a 38% jump, from a total in Aug-Sep of 333 in 2006 to 461 in 2007. Comparing 2005 to 2006 for Aug-Sep, the increase was only 8% and the year before only 23%. The lineal increase had begun!
Offered by Nancy.