Just a quick update!
First, (in blue above), some of these have occurred. There was one near Yellowstone, Texas had a couple and there was even one in Ontario Canada (the farthest East point of the American Crayton).
Second, (in purple above), San Francisco had a small quake (only a 3.2).
Third, (in green above), this one just happened this morning (8am PDT). A 5.4 about 120 miles off the coast right on the point of the Juan De Fuca plate that literally points between Medford and Roseberg.
Still think earthquakes can't be predicted? The logic is actually very straightforward and easy to verify!