Suggested citation and version history for Nakata, J.S., and Okubo, P.G., 2008, Hawaiian Volcano Observatory seismic data, January to December 2007: U.S. Geological Survey Open-File Report 2008-1261, 99 p. [http://pubs.usgs.gov/of/2008/1261/]. Version 1.0, October 17, 2008 Initial release online at http://pubs.usgs.gov/of/2008/1261/