Publications - Data Series 367
U.S. GEOLOGICAL SURVEY
Data Series 367
By James P. Dixon, U.S. Geological Survey, Scott D. Stihler, University of Alaska, and John A. Power, U.S. Geological Survey
Between January 1 and December 31, 2007, AVO located 6,664 earthquakes of which 5,660 occurred within 20 kilometers of the 33 volcanoes monitored by the Alaska Volcano Observatory. Monitoring highlights in 2007 include: the eruption of Pavlof Volcano, volcanic-tectonic earthquake swarms at the Augustine, Illiamna, and Little Sitkin volcanic centers, and the cessation of episodes of unrest at Fourpeaked Mountain, Mount Veniaminof and the northern Atka Island volcanoes (Mount Kliuchef and Korovin Volcano). This catalog includes descriptions of : (1) locations of seismic instrumentation deployed during 2007; (2) earthquake detection, recording, analysis, and data archival systems; (3) seismic velocity models used for earthquake locations; (4) a summary of earthquakes located in 2007; and (5) an accompanying UNIX tar-file with a summary of earthquake origin times, hypocenters, magnitudes, phase arrival times, location quality statistics, daily station usage statistics, and all files used to determine the earthquake locations in 2007.
Abstract
Introduction
Instrumentation
Data Acquisition and Processing
Seismic Velocity Models
Seismicity
Seismicity Highlights
Summary
Acknowledgments
References Cited
Appendix A. Locations of the Earthquake Hypocenters Calculated for Monitoried
Volcanoes in 2007
Appendix B. Parameters for AVO Seismograph Stations in 2007
Appendix C. Locations of the AVO Seismograph Stations in 2007
Appendix D. Operations Status for AVO Stations in 2007
Appendix E. Seismic Velocity Models Used in Locating the Earthquakes Described
in this Report
Appendix F. Location of Volcanic Zones Modeled Using Multiple Cylinders
Appendix G. Previous AVO Earthquake Catalogs
Appendix H. Selected AVO Papers Published in 2007
This report is available online in Portable Document Format (PDF). If you do not have the Adobe Reader, it is available for free download from Adobe Systems Incorporated.
Document Accessibility: Adobe Systems Incorporated has information about PDFs and the visually impaired. This information provides tools to help make PDF files accessible. These tools convert Adobe PDF documents into HTML or ASCII text, which then can be read by a number of common screen-reading programs that synthesize text as audible speech. In addition, an accessible version of Adobe Reader 8.0 for Windows (English only), which contains support for screen readers, is available. These tools and the accessible reader may be obtained free from Adobe at Adobe Access.
Send questions or comments about this report to the author, James P. Dixon, (907) 474-7099.
For more information about USGS activities in Alaska, visit the USGS Alaska Science Center home page.
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/ds/367
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