1. Department of Earth Sciences and the Institute of Geophysical and Planetary Physics; University of California, Santa Cruz; Santa Cruz California USA
2. Department of Geological Sciences; University of Michigan; Ann Arbor Michigan USA
3. Scripps Institution of Oceanography; University of California, San Diego; La Jolla California USA
4. Observatorio Vulcanológico y Sismológico de Costa Rica; Universidad Nacional; Heredia Costa Rica
5. Forschungszentrum für Marine Geowisssenschaften (GEOMAR); Christian-Albrechts-University of Kiel; Kiel Germany
6. Rosenstiel School of Marine and Atmospheric Science; University of Miami; Miami Florida USA