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14200000
1.0
FGDC CSDGM Metadata
FALSE
HAZ_CA_SEISMIC_FAULT_TRACE
002
6293173.235500
6674587.587500
1732988.785500
2121206.780000
1
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD_1983_StatePlane_California_V_FIPS_0405_Feet
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ItemDescription
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
HAZ_CA_SEISMIC_FAULT_TRACE
1
-118.894571
-117.623760
34.821120
33.751122
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.
<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/" STYLE="text-decoration:underline;"><SPAN>here</SPAN></A><SPAN>.</SPAN></P><P><SPAN STYLE="font-weight:bold;">UPDATE HISTORY:</SPAN></P><UL><LI><P><SPAN>11/6/13 - ADDED to SDE</SPAN></P></LI><LI><P><SPAN>11/13/14 - Updated for Hollywood and Azusa Quad Sheets</SPAN></P></LI><LI><P><SPAN>12/10/15 - Updated for Mescal Creek and Mount San Antonio Quad Sheets</SPAN></P></LI><LI><P><SPAN>1/18/18 - Updated with data from Calif. Dept. of Conservation, Calif. Geological Survey</SPAN></P></LI><LI><P><SPAN>11/26/24 - Updated with data from state for the following quad sheets in the NW Antelope Valley: Burnt Peak, Lake Hughes, and Del Sur. Went into effect on 11/21/24.</SPAN></P></LI><LI><P><SPAN STYLE="font-weight:bold;">11/24/25 - Updated with data from the state for the Pasadena and Mount Wilson quad sheets. Went into effect on 11/20/25.</SPAN></P></LI></UL></DIV></DIV></DIV>
Alquist-Priolo
seismic
fault traces
California Department of Conservation, California Geological Survey. All rights reserved.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None</SPAN></P></DIV></DIV></DIV>
Feature Class
dataset
EPSG
5.3(9.0.0)
2785
Simple
FALSE
2785
TRUE
FALSE
HAZ_CA_SEISMIC_FAULT_TRACE
Feature Class
2785
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
FAULT_TYPE
FAULT_TYPE
String
75
0
0
CA_MAP_LEGEND
CA_MAP_LEGEND
String
75
0
0
FAULT_NAME
Fault Name
String
60
0
0
FAULT_ZONE
Fault Zone
String
60
0
0
LINE_TYPE
Line Type
String
30
0
0
LINE_STYLE
Line Style
String
25
0
0
COMMENTS
Comments
String
254
0
0
QUAD_NAME
Quad Map Name
String
35
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
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