Squaxin Island Tribe Multi Hazard Mitigation Plan July 2018 Contact Information Squaxin Island Tribes – Office of Emergency Services Name: John Taylor Title: Emergency Manager Address: 11 SE Squaxin Lane Shelton, WA 98584 Email: [email protected] Phone: (360) 463-0903 or (360) 432-3947 Fax: Name: Title: Address: Email: Phone: Fax: Name: Title: Address: Email: Phone: Fax: Executive Summary Plan Adoption/Resolution (See Appendix A for Adoption Resolution) Acknowledgements Table of Contents Contact Information .......................................................................................................................... 2 Executive Summary ........................................................................................................................... 3 Plan Adoption/Resolution ................................................................................................................. 4 Acknowledgements ........................................................................................................................... 5 SECTION I: PLANNING PROCESS ......................................................................................................... 1 Purpose of the Plan ....................................................................................................................... 1 Federal Laws, Institutions and Policies ........................................................................................... 1 Flood Insurance Act of 1968 ...................................................................................................... 1 Stafford Act ............................................................................................................................... 2 Disaster Mitigation Act of 2000.................................................................................................. 2 Administrative Directives ........................................................................................................... 3 National Mitigation Framework ................................................................................................. 3 Planning Vision .............................................................................................................................. 4 Assurances .................................................................................................................................... 4 Acknowledgements ....................................................................................................................... 4 Consultant ..................................................................................................................................... 7 Planning Process ........................................................................................................................... 7 Public Involvement ........................................................................................................................ 8 Communication ............................................................................................................................. 9 Program Integration ...................................................................................................................... 9 Section II: Tribal Profile and Risk Assessment .................................................................................. 10 Tribal Profile ................................................................................................................................ 10 Squaxin Island Tribe ...................................................................... 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Planning Areas ............................................................................................................................ 12 Cultural Assessment of Planning Areas ........................................................................................ 14 Planning Area 1 ....................................................................................................................... 14 Planning Area 1 Breakdown ..................................................................................................... 16 Planning Area 2 ....................................................................................................................... 19 Planning Area 2 Breakdown ..................................................................................................... 20 Planning Area 3 ....................................................................................................................... 22 Planning Area 3 Breakdown ..................................................................................................... 23 Types of Natural Hazards ............................................................................................................. 25 Drought .......................................................................................................................................... 27 Description .............................................................................................................................. 27 Location and Extent ................................................................................................................. 28 Previous Occurrence and Recent Events .................................................................................. 28 Assessing Vulnerability: ........................................................................................................... 30 Probability of Future Events..................................................................................................... 32 Cascading Effects ..................................................................................................................... 32 Earthquake ..................................................................................................................................... 34 Description .............................................................................................................................. 34 Location and Extent ................................................................................................................. 34 Previous Occurrences and Recent Events ................................................................................. 34 Assessing Vulnerability: ........................................................................................................... 37 Relating Regional Earthquake Damage/Casualties to Squaxin Island Tribe ............................... 42 Probability of Future Events..................................................................................................... 43 Relationship to Other Hazards: Cascading Effects .................................................................... 45 Floods ............................................................................................................................................. 46 Description .............................................................................................................................. 46 Location and Extent ................................................................................................................. 54 Previous Occurrences and Recent Events ................................................................................. 56 Assessing Vulnerability ............................................................................................................ 58 Probability of Future Events..................................................................................................... 59 Relationship to other hazards: Cascading Effects ..................................................................... 59 Landslides ....................................................................................................................................... 61 Description .............................................................................................................................. 61 Location and Extent ................................................................................................................. 64 Previous Occurrence and Recent Events .................................................................................. 64 Assessing Vulnerability: ........................................................................................................... 66 Probability of Future Events..................................................................................................... 67 Cascading Effects ..................................................................................................................... 67 Severe Weather .............................................................................................................................. 68 Description .............................................................................................................................. 68 Types of Severe Weather ......................................................................................................... 69 Severe Storm ........................................................................................................................... 69 High Winds (Windstorms, Haboobs) ........................................................................................ 69 Lightning 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