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U.S. Geological Survey
Open-File Report 2005-1315
Version 1.0

Hawaiian Volcano Observatory Seismic Data, January to December 2004

By Jennifer S. Nakata


map of the Big Island of Hawai'i; Kohala to the north, Mauna Kea south of that, Hualalai southwest of that, Mauna Loa just south of center, and Kilauea in the southeast near the coast.
Map of the Island of Hawai‘i, showing principal settlements and selected geographic and geologic features (from figure 1).

The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year. The seismic summary is offered without interpretation as a source of preliminary data. It is complete in the sense that most data for events of M≥1.5 routinely gathered by the Observatory are included.

The HVO summaries have been published in various forms since 1956. Summaries prior to 1974 were issued quarterly, but cost, convenience of preparation and distribution, and the large quantities of data dictated an annual publication beginning with Summary 74 for the year 1974. Summary 86 (the introduction of CUSP at HVO) includes a description of the seismic instrumentation, calibration, and processing used in recent years. Beginning with 2004, summaries will simply be identified by the year, rather than Summary number. The present summary includes background information on the seismic network and processing to allow use of the data and to provide an understanding of how they were gathered.

Download this report as an 88-page PDF document (of2005-1315.pdf; 1.4 MB)

For questions about the content of this report, contact Jennifer S. Nakata

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Maintained by: Michael Diggles
Date created: January 12, 2006
Date last modified: January 12, 2006 (mfd)