Hawaiian Volcano Observatory, Summary 99. Part 1, Seismic data, January to December 1999 / by Jennifer S. Nakata ; chronological summary by C. Heliker, D. Sherrod (Open-file report ; 00-433)
Hawaiian Volcano Observatory, Summary 99. Part 1, Seismic data, January to December 1999 / by Jennifer S. Nakata ; chronological summary by C. Heliker, D. Sherrod