REPORT:
Volcano Hazards at Newberry Volcano, Oregon

Table of Contents

• Introduction
• Hazardous volcanic phenomena
  • Newberry's volcanic history is a guide to future eruptions
  • Flank eruptions would most likely be basalt
  • The caldera would be the site of most rhyolitic eruptions -- and other types of dangerously explosive eruptions
  • The presence of lakes may add to the danger of eruptions in the caldera
  • The most damaging lahars and floods at Newberry volcano would be limited to the Paulina Creek area
  • Small to moderate-size earthquakes are commonly associated with volcanic activity
• Volcano hazard zonation
  • Hazard zone for pyroclastic eruptions
  • Regional tephra hazards
  • Hazard zone for lahars or floods on Paulina Creek
  • Hazard zone for volcanic gases
  • Hazard zones for lava flows
  • Large-magnitude explosive eruptions of low probability
• Monitoring and warnings
• Suggestions for further reading
• Endnotes

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