1. Department of Geology Institute of Cenozoic Geology and Environment State Key Laboratory of Continental Dynamics Northwest University Xi'an China
2. Geophysics, Department of Physics University of Alberta Edmonton AB Canada
3. Institut de Physique du Globe de Paris Paris France
4. Istituto Nazionale di Geofisica e Vulcanologia Roma Italy
5. Chengdu Center of Geological Survey Geological Survey of China Chengdu China
6. Xi'an Center of Geological Survey China Geological Survey Xi'an China