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City of Santa Ana Emergency Operations Plan <br />Part 1 Basic Plan <br />Newport -Inglewood Fault Zone: This fault extends from the Santa Monica Mountains southeastward to Orange <br />County, paralleling the coast to Newport Beach and then continues paralleling the coast offshore to southern <br />Orange County. This was the source of the destructive 1933 Long Beach Earthquake (magnitude 6.4), whose <br />epicenter was in Huntington Beach and which caused 120 deaths and considerable property damage. Orange <br />County was sparsely populated at the time but three of the four deaths occurring in Orange County occurred in <br />downtown Santa Ana. The original Santa Ana City Hall, previously located at Third and Main Streets on the site <br />of the current Old City Hall, was destroyed by this earthquake, as was the original Santa Ana High School. During <br />the past 60 years, numerous other shocks ranging from magnitude 3.0 to 5.0 have been recorded. The Southern <br />California Earthquake Center (SCEC) reports probable earthquake magnitudes for the Newport -Inglewood fault <br />to be in the range of 6.0 to 7.4 with an unknown recurrence interval. <br />Figure 45 M 6.9 Earthquake on the Newport -Inglewood Fault <br />34.5' <br />34' <br />33.5' <br />-- Earthquake Planning Scenario -- <br />hakeMap for Newport -Inglewood M6.9 Scenario <br />Scenario Date: Fri Aug 3, 2001 05:00:00 AM PDT M 6.9 N33.78 W1 18.13 Depth: 6.akm <br />-119" -116" <br />P LANN ING SCE NARIO ONLY — Uap'Versio n 4 P rocessed 7ue Nov 30. 2010 02:00:43 RAI PS7 <br />PgH�UE4NG <br />Notieft <br />Weak <br />Light <br />trlbderate <br />Strong <br />k+erystrang <br />Severe Vfralent Extreme <br />PQTENTI14L <br />AYLi GE <br />none <br />none <br />none <br />Very ighi <br />Light <br />Moderate <br />ModeraieA-leavy Heavy Very Heav; <br />PEl4KACC %Q) <br />e.17 <br />.17-1.4 <br />1.4-3.9 <br />3.9-R2 <br />9.2-18 <br />18-34 <br />34-65 65-12-4 >124 <br />PEAK VEL-4urn'sl <br />e-0.1 <br />0.1-1.1 <br />1.1-3.4 <br />3.-kU <br />8.1-16 <br />16-31 <br />31-60 60-116 s116 <br />INSTRUMENTAL <br />INTENSITY <br />I <br />I�III <br />IV <br />Y <br />YI <br />YII <br />3F <br />IN <br />