1. Department of Earth Sciences; University of Oxford; South Parks Road Oxford OX1 3AN UK
2. Geological Survey of Canada; 601 Booth Street Ottawa Ontario K1A 0E8 Canada
3. Department of Geosciences; National Taiwan University (NTU); Taipei 106 Taiwan
4. Department of Earth and Environmental Sciences; National Chung-Cheng University; Minxueng Taiwan
5. Institute of Geology; China Earthquake Administration (CEA); Beijing 100029 China