1. Hawai'i Institute of Geophysics and Planetology University of Hawai'i at Mānoa Honolulu Hawaii USA
2. Department of Geology and Geophysics University of Hawai'i at Mānoa Honolulu Hawaii USA
3. Ocean Resources and Engineering University of Hawai'i at Mānoa Honolulu Hawaii USA
4. Now at Portland State University Portland Oregon USA