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City of Santa Ana Emergency Operations Plan <br />Part I Basic Plan <br />No active, potentially active, or inactive earthquake faults are known to exist in Santa Ana; however, the San <br />Joaquin Hills Fault runs along the 405 Freeway just outside the southern border of the City. The City is also <br />located in close proximity to the Newport -Inglewood Fault Zone and the Whittier -Elsinore Fault Zone, two major <br />faults in the Southern California region. The San Andreas Fault, the largest fault in California, is less than 50 miles <br />from Santa Ana and would affect the City should a major earthquake occur. The south-central portions of the <br />City and areas with lower elevations along the Santa Ana River may be subject to liquefaction in the event of a <br />major earthquake. s <br />Figure 14 Orange County Earthquake Fault Zones <br />N Orange County <br />Fault Zones <br />®_ . <br />c OIIM1"1'F' 0 L05.5.Y�'ELE� �.• <br />ruueRrox F�- T <br />pu­ <br />ALMcrACYPRES <br />y� <br />�G! � K� <br />LIMIT OR.xOE <br />Wxo�OROVF <br />Cx ST4INSTER IN \ <br />sexTa.x. NNlx�ox�Nx.,.N ��r.� <br />eH rllrnu � <br />\G� <br />r <br />�NQ IR�NE <br />MESP \ <br />ROREST \ <br />Q <br />aRT9G`NAawe <br />\ Ou WO IWID 0� <br />\ 0� <br />9 ` NNINC. HILLS, $�J <br />O <br />Ill <br />waNs� <br />�G�T oc 9Gg4 <br />TR.No <br />` N� <br />LWENTE $P <br />04 <br />0 <br />Legend <br />�Knmvn FeulEs _ ..rowe.e,wo::�wgnw <br />Freeways <br />O Ciy B—dalles <br />Ou.i—p M •pupa mie mK <br />Notes on Figure 14: The fault touching the right margin of the map is the Elsinore Fault but is incorrectly labeled the <br />Whittier Fault. The Whittier Fault lies at the top center where it is correctly labeled. The San Joaquin Hills Fault does <br />not appear on this map but runs along the 405 Freeway south of the City border. <br />a GP Land Use Element <br />14 <br />