Based upon a new charge moment tensor and the calculation rule of magnetic moment for a rotational charged body,and by means of Euler\'s angular coordinates and Euler\'s kinetic equation about a rotational rigid body in classical mechanics,the general Lagrangian and Euler\'s dynamic equation of a charged dielectric rigid body under a uniform magnetic field have been derived.

Quick moment tensor solution of the August 3, 2009 Gulf of California earthquake

Quick moment tensor solution of the August 9, 2009 Izu Islands, Japan earthquake

Quick moment tensor solution of the 2009 April 6,L' Aquila,Italy earthquake

Preliminary study on Green′s function database and quick moment tensor inversion for Lanzhou Digital Seismic Network (LDSN);

Using the moment tensor inversion method, we calculate the focal mechanisms for the aftershock sequence of the M_S6.

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.