Shin-Chan Han, University of Newcastle, Callaghan, Australia, Jeanne M Sauber, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Taco Broerse, Delft University of Technology, Delft, 5612, Netherlands, Riccardo Riva, Delft University of Technology, Geoscience and Remote Sensing, Delft, Netherlands, Fred F Pollitz, U.S. Geological Survey, Earthquake Science Center, Menlo Park, CA, United States and Emile Okal, Northwestern University, Department of Earth and Planetary Sciences, Evanston, IL, United States