The "IUGG/CSB International Training Course on Continental Earthquakes and Seismic Hazard" was held in Beijing, China, on October 4 to 14, 1998. It was hosted by the China Seismological Bureau (CSB),
Based on the method of "two-dimensional depth structure of the crust" proposed by Horiuchi et al., about 5000 arrival times of 303 local shallow earthquakes recorded by the Beijing Seismographic Netwo