Guam Hazard Mitigation Plan - Western States Seismic Policy Council

SECTIONFIVERisk Assessmentassets identified in Section 4.8 (Assets). The results of the exposure analyses were tabulated atthe village level, as shown in Appendix F (Vulnerability and Potential Loss Results by Village).The exposure analyses used in this plan are subject to the following limitations:• In the case of population, no estimates of injuries or deaths are made and no estimates of thevalue of lives/injuries are made• In the case of EFMUTS and GBS, it is assumed that the entire structure value is lost (i.e., noloss damage curves or worst-case scenario).• No contents values are estimated for EFMUTS or GBS• No loss of function costs are estimated for EFMUTS or GBS• No displacement or temporary quarters costs are estimated for EFMUTS or GBSTo estimate and describe the vulnerability and estimate losses, a quantitative vulnerabilityanalysis generally uses past events in the community being analyzed and/or events that haveoccurred in similar locations.5.5.2 Most Significant Hazards Vulnerability ResultsAlthough the vulnerability of each hazard is addressed detail in the discussion below, it is usefulto focus briefly on the most significant hazards confronting Guam (for those hazards that can bequantified). The results of this analysis are summarized in Tables 5-17, 5-18, and 5-19 based onpercentage of population exposed.Table 5-17Potential of Exposure to Most-Significant Hazards on Guam by PopulationHazardHazard Area% Population Exposed in HazardAreaEarthquake – Fault Proximity 984 feet 16.44Earthquake – Liquefaction High or very high .65Flooding100-year floodplain 4.12(key subhazard of tropical cyclone)HAZMAT – NPDES Air Permit 1-mile radius 32.69HAZMAT – NPDES Water Permit 1-mile radius 11.78HAZMAT – Pre-CERCLIS Facilities 1-mile radius 75.51HAZMAT – Hardfill Sites 1-mile radius 17.12Severe Wind (key subhazard ofSevere wind areas 45.24tropical cyclone)Slope Failure – Landslide Very high or high 6.58Tsunami 16 feet above mean sea level 4.92Wildland Fire Very high or high 57.515-57