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U.S. Geological Survey Open-File Report 2009-1251

Hawaiian Volcano Observatory Seismic Data, January to December 2008

By Jennifer S. Nakata and Paul G. Okubo


Thumbnail of and link to report PDF (9.4 MB)

The U.S. Geological Survey (USGS), 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 and is complete in that most data for events of M≥1.5 are included. All latitude and longitude references in this report are stated in Old Hawaiian Datum.

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 necessitated an annual publication, beginning with Summary 74 for the year 1974. Beginning in 2004, summaries are simply identified by the year, rather than by summary number.

Summaries originally issued as administrative reports were republished in 2007 as Open-File Reports. All the summaries since 1956 are listed at (last accessed 09/21/2009).

In January 1986, HVO adopted CUSP (California Institute of Technology USGS Seismic Processing). Summary 86 includes a description of the seismic instrumentation, calibration, and processing used in recent years. The present summary includes background information about the seismic network to provide the end user an understanding of the processing parameters and how the data were gathered.

A report by Klein and Koyanagi (1980) tabulates instrumentation, calibration, and recording history of each seismic station in the network. It is designed as a reference for users of seismograms and phase data and includes and augments the information in the station table in this summary.

Figures 11-14 are maps showing computer-located hypocenters. The maps were generated using the Generic Mapping Tools (GMT, last accessed 09/21/2009) in place of traditional Qplot maps.

  • This report is available only on the Web.

For additional information:
Contact HVO
Hawaiian Volcano Observatory
U.S. Geological Survey
P.O. Box 51, 1 Crater Rim Road
Hawaii National Park, HI 96718-0051

This report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Nakata, J.S., and Okubo, P.G., 2009, Hawaiian Volcano Observatory seismic data, January to December 2008: U.S. Geological Survey Open-File Report 2009-1251, 84 p. and spreadsheets.


2008 Hawaiian Volcano Observatory Staff


Seismic Instrumentation

Seismic Data Processing

Seismic Catalog

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