Blame observer bias. http://geology.rockbandit.net/2010/03/01/has-there-been-an-increase-in-earthquake-activity/ http://geology.rockbandit.net/2010/03/01/has-th

Blame observer bias. http://geology.rockbandit.net/2010/03/01/has-there-been-an-increase-in-earthquake-activity/ http://geology.rockbandit.net/2010/03/01/has-there-been-an-i...