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Volcanic Ash Fall
This United States Geological Survey (USGS) on-line publication discusses volcanic ash fall in terms of composition and effects. This report discusses the negative effects of volcanic ash fall on machinery, human health, weather and man-made structures, using the Mount Saint Helens eruption of 1980 as an example. The composition of volcanic ash is discussed, as well as ancient and modern ash falls that have occurred in the United States.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
Type of resource:
  • Visual:
    • Map
    • Photograph
  • Text:
    • Report
Subject:
  • 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-000-000-002-762
Related resources:
This resource references 'What are Volcano Hazards'
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey, Cascades Volcano Observatory
http://vulcan.wr.usgs.gov/

Author: Christopher A. Kenedi
United States Geological Survey

Author: Steven R. Brantley
United States Geological Survey

Author: Peter H. Stauffer
United States Geological Survey

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