1. Department of Earth and Planetary Sciences Yale University New Haven CT USA
2. Earth and Planets Laboratory Carnegie Institution for Science Washington DC USA
3. Department of Geosciences Virginia Tech Blacksburg VA USA
4. Department of Geology and Geophysics Woods Hole Oceanographic Institution Woods Hole MA USA
5. Department of Geosciences Smith College Northampton MA USA
6. Department of Earth and Environmental Sciences University of Minnesota Minneapolis MN USA
7. School of Earth and Sustainability Northern Arizona University Flagstaff AZ USA
8. Department of Geology and Environmental Science James Madison University Harrisonburg VA USA
9. Department of Geological Sciences University of North Carolina at Chapel Hill Chapel Hill NC USA
10. Department of Earth and Atmospheric Sciences Cornell University Ithaca NY USA
11. Department of Geology and Geophysics University of Utah Salt Lake City UT USA
12. Earthquake Science Center U.S. Geological Survey Menlo Park CA USA