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St. Barbara Catholic School Project No.: D-6289-01 considered to be Holocene -active or pre -Holocene faults. A defined by the State of California as a fault that has exhibited surface the Holocene time (about the last 11,700 years). A pre -Holocene fault CITY OF SANTA ANA Planning and Building Agency may, lS. Approved FOR PERMIT ISSUANCE ive fault is aster I ..emen within State as a fault whose history of past movement is older than 11,700 years ago and does not meet the criteria for a Holocene -active fault. These Holocene -active and pre -Holocene faults are capable of producing potentially damaging seismic shaking at the site. It is anticipated that the subject site will periodically experience ground acceleration as the result of small to moderate magnitude earthquakes. Other active faults without surface expression (blind faults) or other potentially active seismic sources that are not currently zoned and may be capable of generating an earthquake are known to be present in the region. The subject site is not included within any Earthquake Fault Zones as created by the Alquist-Priolo Earthquake Fault Zoning Act (CGS, 2018). Our review of geologic literature pertaining to the site area indicates that there are no known active or potentially active faults located within or immediately adjacent to the subject property. Faults Close to the Site USGS National Seismic Hazard Maps for Source parameters interactive query has been used to determine the closest fault to the site within 50 miles and has been tabulated on Table — 1 in Appendix C. The closest known active faults capable of producing a major earthquake is the San Joaquin Hills Fault (Mw 7.1 and slip rate of 0.5 mm/yr), which is located about 2.91 miles (4.66 km) away from the site. U.S.G.S. Earthquake Hazard Program Latest Interactive U.S.G.S. Earthquake Hazard Program using Unified Hazard Tool has