1. Geologic Hazards Science Center U.S. Geological Survey Golden CO USA
2. Seismological Laboratory California Institute of Technology Pasadena CA USA
3. Now at ESPCI Paris, PSL Research University, CNRS, Institut Langevin Paris France
4. Cascades Volcano Observatory U.S. Geological Survey Vancouver WA USA
5. Now at Department of Earth, Environmental and Planetary Sciences Brown University Providence RI USA