Geophysical Institute, University of Alaska, 903 Koyukuk Drive, Fairbanks, AK 99775 United States ; Hawaii Institute of Geophysics and Planetology (HIGP), 1680 East-West Road, University of Hawaii, Honolulu, HI 96822 United States
Hawaii Institute of Geophysics and Planetology (HIGP), 1680 East-West Road, University of Hawaii, Honolulu, HI 96822 United States ; Instituto Nazionale di Geofisica e Vulcanologia, Piazza Roma 2, Catania, 95123 Italy
Geophysical Institute, University of Alaska, 903 Koyukuk Drive, Fairbanks, AK 99775 United States
Instituto Nazionale di Geofisica e Vulcanologia, Piazza Roma 2, Catania, 95123 Italy