Florida Gas Transmission Company, LLC submits its Quarterly Activity Report No. 3, under CP11-16.

1 Earthquake Risk Study for Oregon's Critical Energy Infrastructure Hub Yumei Wang, DOGAMI, Steven F. Bartlett, University of Utah, and Scott B. Miles, Western Washington University Table of Contents Summary of Report..........................................................................................................................5 Section 1.Introduction....................................................................................................................16 Background Objective Use of this Study Scope of Work Study Methods Limitations Report Organization Funding Section 2. Characterization of Oregon's Natural Hazards.............................................................27 Natural Hazards and Risk Development of Risk Matrix Method to Develop Risk Score Previous Statewide Earthquake Studies Statewide Damage and Loss Estimates Lessons from Recent Subduction Zone Earthquakes Section 3. Oregon's Energy Sector................................................................................................33 Overview of Energy Sector Critical Energy Infrastructure (CEI) Hub: Project Study Area Economic Interdependencies with the Energy Sector Comparison with Other Economic Studies 2 Section 4. Seismic Hazards in the CEI Hub..................................................................................39 Seismic Hazards in the CEI Hub Area Active Fault Sources Ground Shaking Characteristics Earthquake Intensity Potentially Unstable Soils Liquefaction Lateral Spreading Co-Seismic Settlement Bearing Capacity Failures Landslides Seiches Fires Hazardous Material Releases Ground Deformation Analyses in the CEI Hub BPA Study Lateral Spreading Sensitivity Study Section 5. Energy Facilities and Vulnerabilities in the CEI Hub..................................................61 CEI Hub Facilities: Liquid Fuel, Natural Gas and Electricity Oregon Building Code Influences in the CEI Hub Oil Terminal Facilities Port structures MOTEMS and CEI Hub Ports Seismic Pipeline Vulnerability Non-Energy Facilities and Structures Waterway Transportation to the CEI Hub Section 6. Summary of Findings....................................................................................................90 Seismic Risk in the CEI Hub Lack of System Redundancies System Interdependencies Liquid Fuel Natural Gas Electricity Impacts to Oregon 3 Section 7. Recommendations.......................................................................................................100 Recommendations Recommendation #1: Conduct Seismic Vulnerability Assessments Recommendation #2: Institutionalize Long-Term Mitigation Programs Recommendation #3: Oversight by Homeland Security Council Recommendation #4: Build Oregons Seismic Resilience Recommended Practices for Building Seismic Resilience Risk Management Approach Encourage a Culture of Earthquake Preparedness Section 8. Acknowledgments...........................................................................