California Fault Traces

This data set contains the Alquist-Priolo Earthquake Fault Zones and fault traces as shown on the Official Alquist-Priolo Earthquake Fault Zones Map of the {quadName} quadrangle. The dataset is comprised of polygons that form regulatory zone boundaries (Alquist-Priolo Earthquake Fault Zones), lines that show identified fault traces, and label points and leaderlines for fault trace annotation. These features delineate 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.本数据集包含{quadName}图幅官方阿尔奎斯特-普里奥洛地震断层带地图（Alquist-Priolo Earthquake Fault Zones Map）中所载的阿尔奎斯特-普里奥洛地震断层带（Alquist-Priolo Earthquake Fault Zones）与断层迹线（fault traces）。该数据集由三类要素组成：一是构成监管区域边界的多边形（即阿尔奎斯特-普里奥洛地震断层带），二是用于展示已识别断层迹线的线要素，三是用于断层迹线标注的注记点与注记引导线（leaderlines）。上述要素划定了曾发生地表断层破裂，或经局部地形、地质及岩土工程条件研判存在永久地面位移潜力的区域，此类区域需依照《公共资源法典》第2621.5条的规定采取避让减灾措施。