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LLNL Emergency Management Plan <br /> Rev 24 <br /> January 2019 <br /> valley and the Livermore and Springtown structures in the immediate vicinity of the LLNL site. <br /> The San Andreas Fault system includes the faults listed as well as others along western <br /> California. In Figure 1.2, the teeth indicate dip direction of thrust and reverse faults. The Mount <br /> Diablo Fold and Thrust Belt and the Livermore Fault are blind faults; traces shown represent the <br /> buried upper tips of these faults. <br /> 122 Oo'N 121 M-N <br /> 33 GTM _ -- 38 OUN <br /> r x <br /> 9 <br /> 9 <br /> LLNL <br /> f <br /> � x <br /> fi <br /> 1'-2 DO IN 121 ?U N <br /> Figure 1.2 Active and Potentially Active Faults in the Vicinity of Site 200 <br /> The earthquake faults of greatest threat to LLNL's Site 200 and Site 300 are the Calaveras and <br /> Greenville faults, which are both estimated to be capable of producing earthquakes in the <br /> magnitude 6.5 to 7 range (i.e., similar to the size of the 1989 Loma Prieta earthquake). These two <br /> faults make the greatest contribution to the seismic hazard at Site 200,particularly at frequencies <br /> of ground shaking of about 1 Hz and above that would be the most damaging to buildings at the <br /> sites. For example, a magnitude 5.8 earthquake (followed by a magnitude 5.4 aftershock) on the <br /> Greenville Fault in 1980 produced high frequency shaking having an estimated peak acceleration <br /> of about 0.3 g(g is the acceleration due to gravity) and some instances of significant structural <br /> 19 <br />