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Geology and Natural Hazards

Bay Area Fault Map

Santa Clara County is situated in one of the most geologically active regions in North America. As a matter of public safety, geologic review is required for proposed development on land located within a geologic hazard zone, or any proposed development or ground disturbance that may increase the risk of damage caused by a geologic hazard.

Other natural hazards that are evaluated with land development include wildfires and flooding. The Planning Office coordinates with other agencies in evaluating such hazards.​​


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Last updated: 10/19/2020 2:50 PM