FIGURE 5.6. -Seismicity in the northern (A) and central (B) Coast Ranges. Major branches of the San Andreas fault marked in red; faults dotted where concealed. Earthquakes within rectangles are plotted in corresponding depth sections in Figures 5.7 and 5.8. C, Calaveras fault; CN, Concord fault; G, The Geysers; SF Bay, San Francisco Bay; SJB, San Juan Bautista; SSB, Suisun Bay; D, Dixon; V, Vacaville; W, Winters.