Bulletin of the Seismological Society of America; February 2003; v. 93; no. 1;
p. 14-26; DOI: 10.1785/0120020013
© Seismological Society of America
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Figure 1. Shaded relief topographic map of the Hayward Fault Zone and vicinity showing seismicity (circles). Seismicity data are from the U.S. Geological Survey's Northern California Seismic Net (NCSN) catalog from 1969 through 23 September 1999, M 
1.0, P-wave arrivals 8, root-mean-square travel-time residual 
0.3 sec, horizontal error 2.5 km, and vertical error 5.0 km. Circle, seismicity data (symbol size is proportional to earthquake magnitude); black lines, faults from Jennings et al. (1977) and recent trace of Hayward Fault from Lienkaemper (1992). AA', BB', and CC', geophysical profiles.
