California Department of Conservation, Division of Mines and Geology land_earth_test 02.1 vector digital data Official Maps of Seismic Hazard Zones Sacramento, CA California Department of Conservation, Division of Mines and Geology Issued as required by the Seismic Hazards Mapping Act (Public Resources Code Section 2690-2699.6). http://www.consrv.ca.gov/dmg/shezp/maps.htm 2003 land_earth_test This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards, referred to as seismic hazard zones, may be featured on the map: 1) liquefaction, 2) earthquake-induced landslides, and 3) overlapping liquefaction and earthquake-induced landslides. Developers of properties falling within any of the three zones may be required to investigate the potential hazard and mitigate its threat during the local permitting process. The map is used by cities and counties to regulate development and by property owners selling property within areas where seismic hazard zones have been identified. Local governments can withhold development permits until geologic or soils investigations are conducted for specific sites and mitigation measures are incorporated into development plans. Sellers of property use the maps to check the location of their specific site and, if applicable, disclose to the buyer that the property lies within a seismic hazard zone. en This file was created by merging the Point Mugu, Camarillo, Santa Paula, Santa Paula Peak, Moorpark, Newbury Park, Triunfo Pass, Simi Valley West, Simi Valley East, Thousand Oaks, Calabasas, Pitas Point, Ojai, Fillmore, Piru, Val Verde, Saticoy, Point Dume, Ventura, Matilija, and Whitaker Peak quads. publication date 2003 Complete As needed None earthquake hazards hazard identification and mitigation landslides liquifaction seismic hazards zones None County of Ventura City of Camarillo City of Oxnard City of Simi Valley City of Santa Paula City of Thousand Oaks City of Moorpark City of Ventura Because digital data are easily altered, cities, counties, and others who use this file in their permit review and approval processes, or for other actions mandated by law (e.g., real estate disclosure at time of transfer) are advised to obtain the file directly from the Department of Conservation. The information contained hereon was obtained from California Department of Conservation, Division of Mines and Geology by the Ventura County Resource Management Agency Mapping and Graphics Service Department, solely for the convenience of the County and related contract entities. The County does not warrant the accuracy of this information, and no decision involving a risk of economic loss or physical injury should be made in reliance thereon. Ventura County Resource Management Agency, Mapping and Graphics Services Kay Clark Mapping and Graphics Services Supervisor mailing and physical address
Ventura County
Resource Management Agency
800 S. Victoria Ave., L #1700
Ventura CA 93009 US (805) 654-2463 (805) 654-2630 kay.clark@mail.co.ventura.ca.us 8 a.m. - 4 p.m. ESRI ArcCatalog 9.2.0.1324 -119.462340 -118.630120 34.506110 34.040447 1559409.850930 1809115.303195 199866.573920 366739.526519 Feature Class In regards to the seismic hazard zones delineated in this map, one may assume that the spatial data is logically consistent due to an automated process that fails if this is not true. This process takes design file elements such as line segments and line strings that form a seismic hazard zone boundary and turns them into shapes. Extensive areas with large perimeters are made into complex shapes in which each is comprised of a sequence of line strings that end where they start. For the process to work successfully, lines must intersect where a crossing occurs, duplicate lines may not exist, and there must not be any gaps in the intended zone. This "Complexer" process is run from Intergraph Corp's MGE Map Finisher product. This map may not show all areas that have the potential for liquefaction, landsliding, strong earthquake ground shaking or other earthquake and geologic hazards. Also, a single earthquake capable of causing liquefaction or triggering landslide failure will not uniformly affect the entire area zoned. This map does not show Alquist-Priolo earthquake fault zones, if any, that may exist in this area. Landslide hazard zones on this map were determined, in part, by adapting methods developed by the U.S. Geological Survey (USGS). A new generation of landslide maps being prepared by the USGS (Jibson and Harp, in preparation) uses an experimental approach designed to explore new methods to assess earthquake-induced landslide hazards. Although aspects of this new methodology may be incorporated in future seismic hazard zone maps, the experimental USGS should not be used as substitutes for these official earthquake-induced landslide zone maps. U.S. Geological Survey base map standards provide that 90 percent of cultural features be located within 40 feet (horizontal accuracy) at the scale of this map. The identification and location of liquefaction and earthquake-induced landslide hazard zones are based on available data. However, the quality of data used is varied. The information depicted has been drawn as accurately as possible at this map scale (1:24,000). 10 Resource Management Agency, Graphics and Mapping Service Unified Mapping System The Unified Mapping System is a set of maps, drawn on U.S.G.S. 7 minute quads, including geologic/hazard information such as earthquake faults and soil types, political divisions such as School Districts and Sanitation Districts, and ecological information such as vegetation and wetland habitats. These maps were maintained and updated for use by the Planning Division, and have now been digitized as GIS layers. 24,000 shapefile Boundaries of seismic hazards zones Information normally described in the Spatial Data Organization section is described here instead. The reason for this is because that section allows for description of topologically related vector elements only. Microstation is in a CADD format and does not contain topologically related objects. What is provided here are the results of a command that counts the number of elements in the design file by type on levels 3, 4, and 5. The total number of graphic elements reported is actually a count of the total number of Seismic Hazard Zone polygons in the design file. Design file moor_hz.dgn Total  number of cells ( 2) - 25 Total number of shapes ( 6) - 660 Total number of complex shape headers (14) - 62 747 graphic elements Metadata imported. withheld 20020806 Dataset copied. withheld 20020820 Dataset copied. withheld 20020820 Metadata imported. withheld 20020917 Dataset copied. withheld 20020918 Dataset copied. withheld 20020918 Metadata imported. withheld 20020927 Dataset copied. withheld 20021011 Metadata imported. withheld 20030114 Dataset copied. withheld 20030114 Metadata imported. withheld 20030227 Dataset copied. withheld 20030227 Metadata imported. withheld 20030304 Dataset copied. withheld 20030304 Metadata imported. withheld 20030311 Dataset copied. withheld 20030311 Metadata imported. withheld 20030718 Metadata imported. withheld 20030722 Dataset copied. withheld 20030724 Metadata imported. withheld 20031103 Dataset copied. withheld 20031103 Dataset copied. withheld 20031104 20061228 Ventura County Resource Management Agency, Mapping and Graphics Services Kay Clark Mapping and Graphics Services Supervisor mailing and physical address
Ventura County Planning Division
800 S. Victoria Ave., L #1740
Ventura CA 93009 805/654-2463 805/654-2630 kay.clark@mail.co.ventura.ca.us en FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time 20240412 15390600 FALSE 20231005 19301700 20231005 19301700 landslides_earthquake_induced 002 1559409.851000 1809115.303000 199866.574000 366739.527000 1 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_California_V_FIPS_0405_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.0.0'><WKT>PROJCS[&quot;NAD_1983_StatePlane_California_V_FIPS_0405_Feet&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Lambert_Conformal_Conic&quot;],PARAMETER[&quot;False_Easting&quot;,6561666.666666666],PARAMETER[&quot;False_Northing&quot;,1640416.666666667],PARAMETER[&quot;Central_Meridian&quot;,-118.0],PARAMETER[&quot;Standard_Parallel_1&quot;,34.03333333333333],PARAMETER[&quot;Standard_Parallel_2&quot;,35.46666666666667],PARAMETER[&quot;Latitude_Of_Origin&quot;,33.5],UNIT[&quot;Foot_US&quot;,0.3048006096012192],AUTHORITY[&quot;EPSG&quot;,2229]]</WKT><XOrigin>-117608900</XOrigin><YOrigin>-91881400</YOrigin><XYScale>3048.0060960121905</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.00328083333333333</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102645</WKID><LatestWKID>2229</LatestWKID></ProjectedCoordinateSystem> 1.0 FGDC CSDGM Metadata Esri ArcGIS 13.0.3.36057 landslides_earthquake_induced -119.46234 -118.63012 34.50611 34.040447 1 1559409.85093 1809115.303195 366739.526519 199866.57392 1 1 -119.462340 -118.630120 34.506110 34.040447 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset Downloadable Data 13.480 13.480 002 withheld 13.480 Feature Class Enterprise Geodatabase Feature Class Vector Simple FALSE 0 TRUE FALSE GCS_North_American_1927 NAD_1927_StatePlane_California_V_FIPS_0405 coordinate pair survey feet 0.001000 0.001000 North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 Explicit elevation coordinate included with horizontal coordinates 1.000000 NAD_1927_StatePlane_California_V_FIPS_0405 EPSG 5.3(9.0.0) 0 ID ID Double 8 38 8 landslides_earthquake_induced Feature Class 0 OBJECTID OBJECTID OID 4 10 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE SHAPE.AREA Double 0 0 0 Feature geometry. ESRI Coordinates defining the features. SHAPE.AREA Shape Geometry 8 0 0 Feature geometry. ESRI Coordinates defining the features. Shape SHAPE.LEN Double 0 0 0 Feature geometry. ESRI Coordinates defining the features. SHAPE.LEN SHAPE.LEN Double 0 0 0 20231005