The measured profiles of laboratory fractured rocks should be self-affine fractal.The scaling properties of these profiles are described by two parameters-the f
The focal mechanism of 200 small earthquakes in South China were determined by means of P and S amplitude ratios.The result indicates that P-axes of the recent tectonic stress field are characterized
After the Datong-Yanggao earthquake (October 1989),a special team was organized for the first time by the SSB of China to start the work of earthquake damage evaluation for the purpose of providing th