DISTANCE ALONG PLATE BOUNDARY (km) 1906 M w 7.8 1868 M w 6.8 NORTHERN SAN ANDREAS FAULT SYSTEM 1984 M w 6.2 1979 M w 5.9 2004 M w 6.0 FRACTION LOCKED* (%) * ASSUMES HALF OF STRAIN ACCUMULATION IN CREEPING PATCHES RELEASES AS AFTERSLIP
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