1. Nevada Bureau of Mines and Geology, University of Nevada, Reno, USA
2. School of Ocean and Earth Science and Technology, University of Hawai`i at Manoa, Honolulu, USA
3. Department of Earth and Planetary Science, University of California, Berkeley, USA
4. Earthquake Engineering Research Laboratory, California Institute of Technology, Pasadena, USA
5. UNAVCO, Inc., Boulder, Colo., USA
6. Department of Geology, Utah State University,Logan, USA
7. Department of Geosciences, Pennsylvania State University, University Park, USA