Description: FEMA Flood Hazard Zones in the Simi Valley City Boundary and surrounding area.Lineage: This dataset is provided by FEMA. This copy is reduced to the Simi Valley City Boundary and surrounding area, and excluding "X" and "D" zone types.Update Frequency: As Needed. Last update: 2026-05-28Metadata Date: 2026-05-28
Description: State Special Study Alquist Priolo Fault ZonesLineage: Ventura County GIS is the authoritative data source. This is downloaded from their GIS service.Update Frequency: As Needed. Last update: 2024Metadata Date: 2026-01-09
Description: 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.Lineage: Ventura County GIS is the authoritative data source. This is downloaded from their GIS service.Update Frequency: As Needed. Last update: 2024Metadata Date: 2026-01-09
Description: Earthquake Induced Landslide Hazard AreasLineage: Ventura County GIS is the authoritative data source. This is downloaded from their GIS service.Update Frequency: As Needed. Last update: 2024Metadata Date: 2026-01-09
Name: Fire Hazard Severity Zones - Local Responsibility Area
Display Field: SRA
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Fire Hazard Severity Zone classes from the map dated March 10, 2025.Under the purpose of fire safety and prevention, and by statutory authority, The State Fire Marshal shall classify lands within Local Responsibility Areas (LRA) into fire hazard severity zones. Each zone shall embrace relatively homogeneous lands and shall be based on fuel loading, slope, fire weather, and other relevant factors present, including areas where winds have been identified by the department as a major cause of wildfire spread.The California laws and regulations associated with Fire Hazard Severity Zones in LRA are found in California Government Code 51175-51189, and describe the objectives and and processes by which these data are developed, transmitted as a recommendation to local government agencies, and the subsequent required local ordinance adoption and documentation processes to see the zones finalized.Delivery of Recommended LRA FHSZ data and maps is being phased by regional areas of the state. This data set represents Phase 3 or the process, and includes the following counties: Amador, Calaveras, Fresno, Kern, Kings, Madera, Mariposa, Monterey, Sacramento, San Benito, San Luis Obispo, Santa Barabara, Tulare, Tuolumne, Ventura. Details on the planned schedule and an index to all phase areas can be found at website.Lineage: This dataset is provided by CAL FIRE.Update Frequency: As Needed. Last Update: 2025-04-03Metadata Date: 2026-01-09
Service Item Id: 81f8827a4a97450ebb2e3abe14ed5c4d
Copyright Text: CAL FIRE, Datasets from numerous sources were used in the modeling process.
Name: Fire Hazard Severity Zones - State Responsibility Area
Display Field: SRA
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: Fire Hazard Severity Zone classes from the map dated September 29, 2023, as adopted on January 31, 2024 and implemented on April 1, 2024The State Fire Marshal shall classify lands within state responsibility areas into fire hazard severity zones. Each zone shall embrace relatively homogeneous lands and shall be based on fuel loading, slope, fire weather, and other relevant factors present, including areas where winds have been identified by the department as a major cause of wildfire spread. The California laws and regulations that require Fire Hazard Severity Zones include California Public Resource code 4201-4204 and California Code of Regulations Title 19, Section 2201. Effective April 1, 2024 this regulatory adoption repeals Section 1280.1 of Title 14 California Code of Regulations and adopts similar regulatory provisions in Section 2201 of Title 19 California Code of Regulations.A prior version of this file and data was released as part of the data package accompanying the final Public Comment period for Fire Hazard Severity Zones (September 29, 2023). This previous version and this version are the same geographic representation of Fire Hazard Severity Zones and are now part of the formal regulation as adopted. While under normal workflow any revision to a public data file would get reflected in the filename, in this case the file name remains identical as it is part of the adopted regulation. The only changes reflect edits to the metadata describing timing of adoption and effective date for the regulation.Lineage: This dataset is provided by CAL FIRE.Update Frequency: As Needed. Last Update: 2025-04-03Metadata Date: 2026-01-09
Service Item Id: 81f8827a4a97450ebb2e3abe14ed5c4d
Copyright Text: CAL FIRE, Datasets from numerous sources were used in the modeling process.