1. Université Paris Cité Institute de physique de globe de Paris CNRS Paris France
2. Swiss Seismological Service ETH Zurich Zurich Switzerland
3. Institute of Geophysics ETH Zurich Zurich Switzerland
4. School of Earth Sciences University of Bristol Bristol UK
5. Imperial College London London UK
6. University of California Los Angeles Los Angeles CA USA
7. Jet Propulsion Laboratory, California Institute of Technology CA Pasadena USA