Content-Length: 12242 | pFad | http://pubs.usgs.gov/of/2000/0519/
Open-File Report 00-519
SummaryAniakchak is an active volcano located on the Alaska Peninsula 670 kilometers southwest of Anchorage. The volcano consists of a dramatic, 10-kilometer-diameter, 0.5 to 1.0-kilometer-deep caldera that formed during a catastrophic eruption 3,500 years ago. Since then, at least a dozen separate vents within the caldera have erupted, often explosively, to produce lava flows and widespread tephra (ash) deposits. The most recent eruption at Aniakchak occurred in 1931 and was one of the largest explosive eruptions in Alaska in the last 100 years. Although Aniakchak volcano presently shows no signs of unrest, explosive and nonexplosive eruptions will occur in the future. Awareness of the hazards posed by future eruptions is a key factor in minimizing impact. |
First posted May 15, 2001 For additional information, contact: Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. |
Neal, Christina A.; McGimsey, Robert G.; Miller, Thomas P.; Riehle, James R.; Waythomas, Christopher F., 2000, Preliminary Volcano-Hazard Assessment for Aniakchak Volcano, Alaska: U.S. Geological Survey Open-File Report 00-519, 42 pp., https://pubs.usgs.gov/of/2000/0519/.
Summary of volcano hazards at Aniakchak volcano
Introduction.
Location of Aniakchak volcano
Prehistoric eruptive activity at Aniakchak volcano
Historical eruptions at Aniakchak volcano
Volcano hazards at Aniakchak
Could another caldera-forming eruption occur at Aniakchak?
Event frequency and risk at Aniakchak volcano
Volcano monitoring and eruption response at Aniakchak
Preparing for eruptions at Aniakchak volcano
References
Fetched URL: http://pubs.usgs.gov/of/2000/0519/
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