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2025 Hazard Mitigation Plan <br />Kittitas County, Washington <br /> <br /> <br />Chapter 4: Hazard Identification and Risk Assessment 121 <br />System Component Inventory Value Economic Loss Loss Ratio (%) <br />Light Rail <br />Segments 0.0 0.0 0.0 <br />Bridges 0.0 0.0 0.0 <br />Tunnels 0.0 0.0 0.0 <br />Facilities 0.0 0.0 0.0 <br />TOTAL 0.0 0.0 <br />Bus <br />Facilities 2.0 0.0 1.8 <br />TOTAL 2.0 0.0 <br />Ferry <br />Facilities 0.0 0.0 0.0 <br />TOTAL 0.0 0.0 <br />Port <br />Facilities 0.0 0.0 0.0 <br />TOTAL 0.0 0.0 <br />Airport <br />Facilities 15.9 0.5 3.2 <br />Runways 26.7 0.0 0.0 <br />TOTAL 42.6 0.5 <br />SUBTOTAL 3,099.4 0.7 <br />4.6.4.7. FEMA NRI Expected Annual Loss Estimates <br />An earthquake NRI EAL score, and rating represent a community's relative level of expected building and <br />population loss each year due to earthquakes when compared to the rest of the United States. The EAL <br />score is positively associated with a community’s risk; therefore, a higher EAL score results in a higher <br />Risk Index score. Table 4-60 outlines the earthquake EAL for Kittitas County. <br />Table 4-60. Earthquake Expected Annual Loss (FEMA National Risk Index) <br />Jurisdiction Population <br />Equivalence <br />Building <br />Value <br />Agriculture <br />Value <br />Total <br />Expected <br />Annual <br />Loss <br />Expected <br />Annual <br />Loss <br />Score <br />Rating <br />Kittitas County $1.3 Million $3.9 Million N/A $5.2 Million 92.4 Very High <br />Expected annual loss scores are calculated utilizing an equation that combines values for exposure, annualized frequency, <br />and historic loss ratios (Expected Annual Loss = Exposure x Annualized Frequency x Historic Loss Ratio). <br />4.6.4.8. Earthquake Risk Index Score <br />The FEMA earthquake Risk Index score and rating represent a community's relative risk for earthquakes <br />when compared to the rest of the United States. Table 4-61 illustrates the earthquake Risk Index rating <br />and score for Kittitas County. <br />