Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099 United States
Nevada Bureau of Mines and Geology and Seismological Laboratory, University of Nevada, Reno, NV 89557-0088 United States; School of Civil Engineering and Geosciences, University of Newcastle upon Tyne, Newcastle, NE1 7RU United Kingdom
School of Civil Engineering and Geosciences, University of Newcastle upon Tyne, Newcastle, NE1 7RU United Kingdom ; Colorado Center for Astrodynamics Research, University of Colorado, Boulder, CO 80309-0431 United States
Nevada Bureau of Mines and Geology and Seismological Laboratory, University of Nevada, Reno, NV 89557-0088 United States