Guam Hazard Mitigation Plan - Western States Seismic Policy Council

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SECTIONFIVERisk AssessmentTable 5-1Guam Historical Hazard Event Database FieldHazardFatalitiesInjuriesProperty Damage ($)DescriptionSourceThe hazard event database was populated in a step-wise manner. The first step was to reviewrecords from HS/OCD, FEMA, and the U.S. Department of Agriculture (USDA) and to identifyand enter the events that were declared a disaster or emergency by one or more of the following:• Governor of Guam• President of the United States• Secretary of the USDAIn the second step, additional events were identified and entered. To limit the number of entries,the additional events had to meet one or more of the following criteria:• One or more fatalities• One or more injuries• $50,000 or more in damages or• Significant event, as expressed in historical records or according to defined criteriaThe first three criteria are used to screen the large number of hazard event records from the last20 to 30 years to a manageable number. The fourth criterion enables the inclusion of historichazard events, most of which have relatively little specific information but were consideredsignificant enough to have been noted in the historical records.A summary of the natural hazards that can affect Guam and the number of reported historicaloccurrences are shown in Table 5-2. This table was originally created for the 2005 Guam HMP,was updated for the 2008 Guam HMP, and is again updated for the 2011 Guam HMP. Effortswere made to avoid the double-counting of events by aggregating them into a primary hazardevent. For example, a tropical cyclone/typhoon accompanied by severe wind and flooding wasentered only once under tropical cyclone/typhoon, though the multiple subhazards were noted inthe description of the event. Also, information regarding fatalities, injuries, and property damagewas available for only a small proportion of the hazard events. In most cases, this informationshould not be considered an accurate representation of the potential damage experienced to date.5-2
SECTIONFIVERisk AssessmentTable 5-2Summary Historical Record of Hazards on GuamHazardNumber of RecordsDisaster/EmergencyDeclarationsHistorical RecordsRecorded DamagesOtherSignificantEvents Total Fatalities Injuries Losses ($)Further Evaluation/MajorHazard CategoryCoastal Erosion 0 5 5 N/A N/A N/A Coastal ErosionDam Failure 0 0 0 0 0 $0 No further considerationDisease 0 6 6 4,080 0 N/A DiseaseDrought 0 7 7 0 0 $0 DroughtEarthquake 1 36 37 0 61$1,000,000 +Royal PalmdamageEarthquakeExpansive Soil N/A N/A N/A N/A N/A N/A No further considerationExtreme Heat 0 0 0 0 0 $0 No further considerationFissure 0 0 0 0 0 $0 No further considerationFlood 0 8 8 1 1 $6,500,000 FloodFog 0 0 0 0 0 $0 No further considerationHail 0 0 0 0 0 $0 No further considerationHazardousMaterials0 11 11 0 0 N/A Hazardous MaterialsHigh Surf 0 6 0 34 41 $4,000,000 High SurfLandslide 0 7 7 N/A N/A N/A Slope FailureLightning 0 17 16 1 0 $405,000 LightningLiquefaction 0 1 1 N/A N/A $8,000,000 EarthquakeMudslide 0 N/A N/A N/A N/A N/A Slope FailureNuclear Incident 0 0 0 0 0 $0 No further considerationPost-fire DebrisFlow0 N/A N/A N/A N/A N/A Slope FailureSalt Spray 0 3 3 N/A N/A N/A Salt SpraySevere Wind 0 24 24 N/A 3 $775,000 Severe WindSinkholes 0 N/A N/A N/A N/A N/A Non-SeismicSubsidence 0 0 0 0 0 $0 No further considerationTerrorism 0 0 0 0 0 $0 TerrorismThunderstorm 0 0 0 0 0 $0 No further considerationTornado 0 6 6 0 0 N/A No further considerationTsunami 0 12 12 0 0 N/A TsunamiTransportationAccident1 1 2 225 0 N/A Transportation Accident5-3
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Page 5 and 6: ReferencesTABLE OF CONTENTS7.2.4 HM
Page 7 and 8: List of Tables, Figures, and Append
Page 9 and 10: List of Tables, Figures, and Append
Page 11 and 12: Acronyms and Abbreviations°F degre
Page 13 and 14: Acronyms and AbbreviationsNCTSNFIPN
Page 15 and 16: AcknowledgementsRay Calvo, Guam Env
Page 17 and 18: 1. Section 1 ONE PrerequisitesSECTI
Page 19 and 20: 2. Section 2 TW O Backgrou ndSECTIO
Page 21 and 22: SECTIONTWOBackgroundanalyses should
Page 23 and 24: 3. Section 3 THR EE Planning Pro ce
Page 25 and 26: SECTIONTHREEPlanning Process Docume
Page 33 and 34: 4. Section 4 F OUR Island D escript
Page 35 and 36: SECTIONFOURIsland DescriptionThe El
Page 37 and 38: SECTIONFOURIsland DescriptionTable
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SECTIONFIVERisk Assessmentspecies t
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SECTIONFIVERisk AssessmentDMA 2000
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SECTIONFIVERisk Assessmentassets id
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SECTIONFIVERisk Assessmentanalysis
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SECTIONFIVERisk AssessmentTable 5-2
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SECTIONFIVERisk AssessmentEarthquak
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SECTIONFIVERisk AssessmentRepetitiv
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SECTIONFIVERisk Assessmentequal to
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SECTIONFIVERisk AssessmentAdditiona
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6. Section 6 SIX Mitigation Strateg
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SECTIONSIXMitigation StrategyCapabi
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SECTIONSIXMitigation StrategyDepart
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SECTIONSIXMitigation Strategyand ov
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SECTIONSIXMitigation Strategycost r
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SECTIONSIXMitigation Strategy• Di
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SECTIONSIXMitigation StrategyCommer
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SECTIONSIXMitigation Strategy6.5 MI
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SECTIONSIXMitigation StrategyTable
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7. Section 7 SEVEN Plan Mainten an
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SECTIONSEVENPlan Maintenance Proces
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SECTIONEIGHTReferences8. Section 8
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SECTIONEIGHTReferencesGovernment of
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SECTIONEIGHTReferencesGuam Departme
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SECTIONEIGHTReferencesLautner, Beth
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SECTIONEIGHTReferencesPacific ENSO
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SECTIONEIGHTReferencesUSGS. 2004.
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Appendix AAdoption Resolution
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Appendix BFEMA Crosswalk
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STANDARD STATE HAZARD MITIGATION PL
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Appendix CDefinitions
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Appendix CDefinitions100-hundred ye
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Appendix CDefinitionsConstruction o
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Appendix CDefinitionsconcept of dis
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Appendix CDefinitionsthat significa
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Appendix CDefinitionsInfestations m
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Appendix CDefinitionsPrivate activi
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Appendix CDefinitionsSpecial events
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Appendix CDefinitionsflooding, all
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Appendix DFigures
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Appendix EEssential Facilities, Maj
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Appendix FVulnerability and Potenti
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Appendix GPlan Maintenance Document
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GOVERNMENT OF GUAM CERIFICATION:App
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Guam Hazard Mitigation Plan - Western States Seismic Policy Council

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