Lanzhou Institute of Seismology, China Seismological Bureau, Lanzhou 730000, China 2) Institute of Geology, China Seismological Bureau, Beijing 100029, China
基金State Key Basic Research Development and Programming Project (G19980407-04) and the Project during the ninth Five-Year Plan of Gansu Province (GK973-2-110A).
文摘Lanzhou Institute of Seismology, China Seismological Bureau, Lanzhou 730000, China 2) Institute of Geology, China Seismological Bureau, Beijing 100029, China