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What are Volcano Hazards
This United States Geological Survey (USGS) on-line publication contains details about the geologic and hydrologic hazards caused by volcanoes, specifically in the U.S. Information and details are provided about hazards such as eruption blasts, volcanic gases, lava and pyroclastic flows, volcano landslides and lahars.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
Type of resource:
  • Visual:
    • Illustration - scientific
  • Text:
    • Ref. material
  • Geological Sciences:
    • Geology
  • Natural hazards
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Information presented on this web site is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credit is requested. USGS authored or produced data and information are in the public domain. While the content of most USGS web pages is in the public domain, not all the information on USGS sites is in the public domain. Some images/graphics are used by USGS with permission. For other uses, you may need to obtain permission from the copyright holder under the copyright law.
DLESE Catalog ID: DLESE-000-000-002-759
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey, Cascades Volcano Observatory

Author: Bobbie Myers
United States Geological Survey

Author: Steven R. Brantley
United States Geological Survey

Author: Peter Stauffer
United States Geological Survey

Author: James W. Hendley, II
United States Geological Survey