The seismic risk evaluation is carried out on several segments of the East Kunlun and Altun faults by using the seismic moment and real-time probabilistic model.

In this paper, the method for inversing the kinematics parameters of a fault zone from seismic moment tensors is discussed and applied to the study of the present kinematics characteristics of Xianshuihe Fault zone and Fenwei Fault zone.

The ratio of radiated energy over seismic moment, or the so-called reduced energy, is studied for global deep-focus earthquakes deeper than 70km using the scalar seismic moment in the Harvard CMT catalogue and the radiated energy estimated by NEIC from January 1987 to December 2001.

The recurrence interval has been estimated by three methods: offset landforms, earthquake moment rate and fault slip rate.

With the wave spectra of earthquakes,the scale seismic moment and seismic radiant energy are calculated and further the apparent stress are calculated.

The application of seismic moment tensor inversion to bulletin of seismological observation;

Based on the data of GPS and seismic moment tensor and considered tectonic motion within the Chinese continent thoroughly,the euler parameters of main-plates in Chinese continent are studied through joint inversion method.

In the field of observation, the methods of the accurate location of earthquake sources, the inversion of seismic moment tensor and the mechanism of earthquake source are improved and developed.