Funding for this research was provided by:
National Natural Science Foundation of China (11872156)
National Key Research and Development Program of China (2017YFC1500801)
the program for Innovative Research Team in China Earthquake Administration.
Article History
Received: 14 May 2019
Accepted: 17 October 2019
First Online: 28 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.