1. School of Earth Sciences, Yunnan University, Kunming 650500, China
2. State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China
3. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
4. Seismological Center, Center Weather Bureau, Taipei 10048, Taiwan
5. Department of Geosciences, National Taiwan University, Taipei 10048, Taiwan