1. Department of Earth and Planetary Sciences University of California Santa Cruz CA USA
2. Seismological Laboratory California Institute of Technology Pasadena CA USA
3. Department of Ocean and Resources Engineering University of Hawai‘i at Manoa Honolulu HI USA
4. Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
5. Schmidt Institute of Physics of the Earth Russian Academy of Sciences Moscow Russia
6. Geophysical Survey Russian Academy of Sciences Obninsk Russia
7. Lamont‐Doherty Earth Observatory Columbia University New York NY USA