Item 26 - Updated Hazard Mitigation Plan

Home Browse Search

Hazard Mitigation Plan | 2022 Risk Assessment - 40 - Hazard Location (Where) Extent (How Big an Event) Probability (How Often) * Previous Occurrences River on the West side of the City. Climate Change Entire City Impacts would range from mild to severe throughout the City. Likely Increasing temperatures throughout the region over the past century. Drought Entire City Statewide Drought 2011-2015 Likely 2013-2015. City issued mandatory reductions of 13% in 2013 and another 12% in 2015. Extreme Heat Entire City Impacts would range from mild to severe throughout the City. Likely As recently as 2022, heat and humidity are increasing. Epidemic / Pandemic / Vector- Borne Diseases Entire City Impacts would range from mild to severe throughout the City. Likely Coronavirus March 2020-present * Probability is defined as: Unlikely = 1:1,000 years, Possibly = 1:100-1:1,000 years, Likely = 1:10-1:100 years, Highly Likely = 1:1 year 1 Uniform California Earthquake Rupture Forecast HAZUS-MH The hazard maps in the Mitigation Plan were generated by Emergency Planning Consultants using FEMA’s Hazards United States – Multi Hazard (HAZUS-MH) software program. The HAZUS complete reports are attached separately. Once the location and size of a hypothetical earthquake are identified, HAZUS-MH estimates the intensity of the ground shaking, the number of buildings damaged, the number of casualties, the amount of damage to transportation systems and utilities, the number of people displaced from their homes, and the estimated cost of repair and clean up. It’s important to note that the “project area” is based on Census Tracts not jurisdictional boundaries. As per FEMA’s HAZUS Guidebook, HAZUS is a GIS-based software that can be used to estimate potential damage, economic loss, and social impacts from earthquake, flood, tsunami and hurricane wind hazards. The HAZUS software includes nationwide general GIS datasets, and a model for the four natural disasters below. The model results can support the risk assessment piece of mitigation planning.