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This data set contains the Alquist-Priolo Earthquake Fault Zones and fault traces as shown on the Official Alquist-Priolo Earthquake Fault Zones Map. The dataset is comprised of polygons and lines that form regulatory zone boundaries (Alquist-Priolo Earthquake Fault Zones) and fault traces of areas where surface fault rupture previously has occurred, or where local topographic, geological, and geotechnical conditions indicate a potential for permanent ground displacements such that mitigation by avoidance as stated in Public Resources Code Section 2621.5 would be required. |
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This data set contains the Alquist-Priolo Earthquake Fault Zones and fault traces as shown on the Official Alquist-Priolo Earthquake Fault Zones Map. The dataset is comprised of polygons and lines that form regulatory zone boundaries (Alquist-Priolo Earthquake Fault Zones) and fault traces of areas where surface fault rupture previously has occurred, or where local topographic, geological, and geotechnical conditions indicate a potential for permanent ground displacements such that mitigation by avoidance as stated in Public Resources Code Section 2621.5 would be required. |
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California Department of Conservation, California Geological Survey. All rights reserved. |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This map will assist cities and counties in fulfilling their responsibility to prohibit the location of developments and structures for human occupancy across the trace of active faults as required by the Alquist-Priolo Earthquake Fault Zoning Act (Public Resources Code Sections 2621-2630). </SPAN></P><P><SPAN>For information regarding the scope and recommended methods to be used in conducting the required site investigations, see DMG Special Publication 42, Fault-Rupture Hazard Zones in California. </SPAN></P><P><SPAN>Information about the Alquist-Priolo Earthquake Fault Zoning (AP) Act and links to data downloads is </SPAN><A href="http://www.conservation.ca.gov/CGS/rghm/ap/"><SPAN>here</SPAN></A><SPAN>.</SPAN></P><P><SPAN STYLE="font-weight:bold;">UPDATE HISTORY:</SPAN></P><UL><LI><P><SPAN STYLE="font-weight:bold;">11/6/13 - ADDED to SDE</SPAN></P></LI><LI><P><SPAN STYLE="font-weight:bold;">11/13/14 - Updated for Hollywood and Azusa Quad Sheets</SPAN></P></LI><LI><P><SPAN STYLE="font-weight:bold;">12/10/15 - Updated for Mescal Creek and Mount San Antonio Quad Sheets</SPAN></P></LI><LI><P><SPAN STYLE="font-weight:bold;">01/18/18 - Updated with data from Calif. Dept. of Conservation, Calif. Geological Survey</SPAN></P></LI></UL><P><SPAN STYLE="font-weight:bold;">LAST CHECKED FOR UPDATES - 12/2021</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None</SPAN></P></DIV></DIV></DIV> |
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hazards_public_safety.SDE.HAZ_CA_SEISMIC_FAULT_TRACE |
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["Alquist-Priolo","seismic","fault traces"] |
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en-US |
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150000000 |
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