1. Department of Earth Sciences University of California, Riverside Riverside CA USA
2. Department of Geological Sciences San Diego State University San Diego CA USA
3. Earth Observatory of Singapore Nanyang Technological University Singapore
4. Invisible Software San Jose CA USA
5. Centro de Investigación Científica y de Educación Superior de Ensenada (CISESE) Baja California Mexico
6. Department of Civil and Environmental Engineering Rutgers University Piscataway NJ USA