Fig. 2
Comparisons of Bz with active tectonics and the 10-year (2000–2010) seismic catalog. White heavy solid lines mark plate boundaries. Blue lines mark the six level I blocks, red lines mark Level II block boundaries (see Fig. 1), and the names of level II blocks are given here. Focal mechanism with different colors and sizes indicate epicenters of focal depth and magnitude. Background colors are for Bz at 200 km altitude