found: Hawaiian Volcano Observatory, Summary 103. Part I, Seismic data, January to December 2003, 2004:t.p. (T.Orr)
found: OCLC, Mar. 17, 2008(hdg: Orr, Tim R.; Orr, T. R.; Orr, T.; usage: Tim R. Orr, T.R. Orr, T. Orr)
found: E-mail from Tim Orr, Mar. 14, 2008(Tim R. Orr, Hawaiian Volcano Observatory, U.S. Geological Survey, has also published with the Arizona Geological Survey)
found: Hawaiian volcanoes, 2015:page 147 (Tim R. Orr) page ix (Tim R. Orr, Hawaiian Volcano Observatory, U.S. Geological Survey, Hawaiʻi National Park, Hawaii, USA and Department of Geology and Geophysics, University of Hawaiʻi at Mānoa, Honolulu, Hawaii)
found: USGS WWW site, May 29, 2015:(Tim Orr, Geologist ; Education: University of Hawaii at Manoa, PH.D. Candidate - Geology and Geophysics, Northern Arizona University, M.S. (1997) - Geology, University of Montana, B.A. (1995) - Geology, University of Montana, B.A. (1993) - Geography ; ) - http://profile.usgs.gov/torr