REPORT:
Volcanic Hazards with Regard to Siting Nuclear-Power Plants in the Pacific Northwest

Table of Contents

• Executive Summary
• Introduction
  • Background
  • Purpose and scope
  • Acknowledgments
• Types and effects of potentially hazardous volcanic events
  • Introduction
  • Flowage phenomena
    • Debris avalanches
    • Pyroclastic flows
    • Pyroclastic surges
    • Volcanic blasts
    • Lava flows
    • Lava domes
    • Lahars
    • Floods
  • Tephra
  • Emission of volcanic gases
  • Other hazardous events associated with volcanic activity
    • Volcanic seismicity
    • Atmospheric shock waves induced by eruptions
• Eruptive history and volcanic-hazards assessment for Cascade volcanoes
  • Introduction
  • Mount Baker
  • Glacier Peak
  • Mount Rainier
  • Mount Adams
  • Mount St. Helens
  • Mount Hood
  • Mount Jefferson
  • Three Sisters
  • Newberry volcano
  • Crater Lake (Mount Mazama)
  • Medicine Lake volcano
  • Mount Shasta
  • Lassen volcanic center
  • Basaltic volcanoes and lava fields of the Cascade Range
• Volcanic-hazard zones for eruptions of Cascade Range volcanoes
  • Introduction
  • Proximal-hazard zones
  • Distal hazard zones for lahars and floods
  • Tephra-hazard zones
  • Hazard zones for eruptions of basaltic volcanoes and volcanic fields of the Cascade Range
• General guidelines for evaluating volcanic hazards at proposed sites for nuclear power plants in the Pacific Northwest
  • Introduction
  • Evaluation criteria used in previous safety-analysis reports for nuclear power plant sites
  • Guidelines for evaluation of sites in each hazard zone
    • Proximal-hazard zones
    • Distal lahar- and flood-hazard zones
    • Hazard zones for basaltic volcanoes and volcanic fields
    • Tephra-hazard zones
• References
• Appendix A: Tables summarizing recent activity of Cascade volcanoes
• Appendix B: Glossary

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