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19-1 <br /> <br /> <br />Probability Factor <br />0 1 2 3 <br />Dam Failure <br />Drought <br />Earthquake <br />Flood <br />Landslide <br />Sea-Level Rise <br />Severe Weather <br />Tsunami <br />Wildfire <br />2 <br />3 <br />2 <br />3 <br />3 <br />3 <br />3 <br />1 <br />3 <br /> <br /> <br /> <br /> <br />19. PLANNING AREA RISK RANKING <br /> <br /> <br /> <br />A risk ranking was performed for the hazards of concern described in this plan. This risk ranking assesses the <br />probability of each hazard’s occurrence as well as its likely impact on the people, property, and economy of the <br />planning area. The risk ranking was conducted via facilitated brainstorming sessions with the Steering <br />Committee. Estimates of risk were generated with data from Hazus using methodologies promoted by FEMA. <br />Additionally, to support the social equity lens for this plan update, a social vulnerability ranking factor and <br />weighting was established to support planning partners wishing to apply an equity lens to their risk ranking and <br />project identification and prioritization. <br /> <br />19.1 PROBABILITY OF OCCURRENCE <br />The probability of occurrence of a hazard is indicated by a factor determined by the likelihood of annual <br />occurrence, based on past hazard events in the area: <br /> High—Hazard event is likely to occur within 25 years (Probability Factor = 3) <br /> Medium—Hazard event is likely to occur within 100 years (Probability Factor =2) <br /> Low—Hazard event is not likely to occur within 100 years (Probability Factor =1) <br /> No exposure—There is no probability of occurrence (Probability Factor = 0) <br />Figure 19-1 summarizes the probability assessment for each hazard of concern for this plan. The probability factor <br />is the same for the baseline ranking and the equity lens ranking. <br /> Figure 19-1. Probability Factors for Hazards of Concern