Quaternary faults offshore of California

A comprehensive map of Quaternary faults has been generated for offshore of California. The Quaternary fault map includes mapped geometries and attribute information for offshore fault systems located in California State and Federal waters. The polyline shapefile and matching KML file have been compiled from previously published mapping where relatively dense, high-resolution marine geophysical data exist. The data are accompanied by a PDF containing citations for the compiled source data. Most of the marine geophysical data used for mapping have been processed, merged, and released by the USGS in maps, data releases, and journal publications in support of the California Seafloor Mapping Program and the U.S. West Coast and Alaska Marine Geohazards Project.

本数据集针对加利福尼亚州近海区域生成了一套第四纪断层（Quaternary faults）综合分布图。该第四纪断层分布图涵盖了加利福尼亚州管辖及联邦管辖海域内近海断层系统的解译几何形态与属性信息。本数据集包含折线型形状文件（polyline shapefile）及配套KML文件，二者均依托相对密集的高分辨率海洋地球物理数据，基于已发表的解译成果编制而成。随数据集附带一份PDF文档，其中列明了所汇编源数据的参考文献信息。本次制图所用的多数海洋地球物理数据，均由美国地质调查局（USGS）经处理、整合后发布，相关成果见于其地图集、数据发布文件及期刊论文，用于支撑加利福尼亚海底测绘计划（California Seafloor Mapping Program）与美国西海岸及阿拉斯加海洋地质灾害项目（U.S. West Coast and Alaska Marine Geohazards Project）的实施。