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Service Description: SEISMIC HAZARD ZONES OF REQUIRED INVESTIGATION
These zones are delineated to assist cities and counties in fulfilling their responsibilities for protecting the public safety from the effects of earthquake-triggered ground failure as required by the Seismic Hazards Mapping Act (Public Resources Code Sections 2690-2699.6).
For general information regarding the designation of seismic hazard zones, see California Geological Survey Special Publication 118, Recommended Criteria for Delineating Seismic Hazard Zones in California.
For information regarding the scope and recommended methods to be used in conducting the required site investigations, see California Geological Survey Special Publication 117A, Guidelines for Evaluating and Mitigating Seismic Hazards in California. For a general description of the Seismic Hazards Zonation Program, the Seismic Hazards Mapping Act and regulations, downloadable official zones and related information, please refer to the California Geological Survey Website at http://www.conservation.ca.gov/cgs/shzp/. LIMITATIONS
1) This site is not designed for official natural hazards disclosure determination. “Official” natural hazard zones viewed on this site have been modified for display purposes, and are of insufficient resolution to definitively determine in all cases whether an individual property lies within a seismic hazard zone for disclosure purposes pursuant to California Civil Code Section 1103 et seq. 2) These zones may not include 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. 3) Delineation of official seismic hazard zones was done in accordance with U.S. Geological Survey 1:24,000 base map standards which provides that 90 percent of cultural features be located within 40 feet (horizontal accuracy). Overlay of zones on other base maps can result in discordance with base map features.
4) DISCLAIMER: The State of California and the Department of Conservation make no representations or warranties regarding the accuracy of these zones, or the data from which these zones were derived. Neither the State nor the Department shall be liable under any circumstances for any direct, indirect, special, incidental or consequential damages with respect to any claim by any user or any third party on account of or arising from the use of this information.
Map Name: Landslide Zone of Required Investigation
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Description: This zone is an official regulatory zone delineating areas within which permits to construct buildings for human occupancy must be conditioned onsite-specific evaluations & mitigation for landslide hazard of foundation materials according to state law (Public Resources Code Section 2690 et seq.).
Copyright Text: California Geological Survey (http://www.conservation.ca.gov/cgs/geologic_hazards/landslides/Pages/Index.aspx)
Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
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YMin: 4503025.631847806
XMax: -1.2679780871178217E7
YMax: 5000253.526663423
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -1.38492138562E7
YMin: 3833633.7161
XMax: -1.2705029673700001E7
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Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Potential Landslide Areas
Author: Charles Real mailto:creal@consrv.ca.gov
Comments: SEISMIC HAZARD ZONES OF REQUIRED INVESTIGATION
These zones are delineated to assist cities and counties in fulfilling their responsibilities for protecting the public safety from the effects of earthquake-triggered ground failure as required by the Seismic Hazards Mapping Act (Public Resources Code Sections 2690-2699.6).
For general information regarding the designation of seismic hazard zones, see California Geological Survey Special Publication 118, Recommended Criteria for Delineating Seismic Hazard Zones in California.
For information regarding the scope and recommended methods to be used in conducting the required site investigations, see California Geological Survey Special Publication 117A, Guidelines for Evaluating and Mitigating Seismic Hazards in California. For a general description of the Seismic Hazards Zonation Program, the Seismic Hazards Mapping Act and regulations, downloadable official zones and related information, please refer to the California Geological Survey Website at http://www.conservation.ca.gov/cgs/shzp/. LIMITATIONS
1) This site is not designed for official natural hazards disclosure determination. “Official” natural hazard zones viewed on this site have been modified for display purposes, and are of insufficient resolution to definitively determine in all cases whether an individual property lies within a seismic hazard zone for disclosure purposes pursuant to California Civil Code Section 1103 et seq. 2) These zones may not include 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. 3) Delineation of official seismic hazard zones was done in accordance with U.S. Geological Survey 1:24,000 base map standards which provides that 90 percent of cultural features be located within 40 feet (horizontal accuracy). Overlay of zones on other base maps can result in discordance with base map features.
4) DISCLAIMER: The State of California and the Department of Conservation make no representations or warranties regarding the accuracy of these zones, or the data from which these zones were derived. Neither the State nor the Department shall be liable under any circumstances for any direct, indirect, special, incidental or consequential damages with respect to any claim by any user or any third party on account of or arising from the use of this information.
Subject: Landslide
Category: myPlan
Keywords: Landslide,planning
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Supports Dynamic Layers: true
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Supported Query Formats: JSON, geoJSON
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