This polygon shapefile represents fault zones for the County of Santa Cruz, California that are characterized by fractures in the Earth's crust. These zones of fracture are designated by the Seismic Safety Element of the General Plan/Local Coastal Plan and California State-designated Seismic Review Zones. Fault Zones designated for review by the County include the Butano, Sargent, Zayante and Corralitos complexes. State-designated Seismic Review Zones include the San Andreas and portions of the Zayante and Butano complexes. This layer is part of a collection of GIS data created for Santa Cruz County, California.The Geographic Information Systems (GIS) Unit falls under the purview of the County of Santa Cruz Information Services Department. The GIS Unit serves all County departments and external customers and provides data on land, features and people of Santa Cruz County. Santa Cruz County encompasses 4 cities and approximately 265,000 people. This coverage can be used for basic applications such as viewing, querying and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data.