Funding for this research was provided by:
National Natural Science Foundation of China (U1602233)
National Key R&D Program of China (2018YFC1503305)
Spark Program of Earthquake Science of China (XH19055)
Article History
Received: 10 January 2019
Revised: 5 July 2019
Accepted: 8 July 2019
First Online: 17 July 2019