Seismic fortification capability of rural buildings in China in view of Jiujiang earthquake;

7 Jiujiang earthquake is presented in this paper.

This article analyzes the reasons for jiujiang earthquake from the angle of geological conditions in lushan area and the possbility of strong shock in Huangshi in future.

Discussion on the Lijiang Earthquake and the SEM Characteristics of Surfaces of Quartz Gravels in the Gouge of Main Faults around the Yulong Snow Mountain;

Tempospatial variation of the ambient stress field in the seismic area before and after Lijiang earthquake;

According to the analyzed results,the cross-fault cumulative prercentage of deformation is proved to have some characterists in space distribution as well as in the preparing process before Lijiang Earthquake.

In this paper, we have studied the variation characteristic of some seismic wave parameters including the temporal linearity of seismic wave, average half-period and the dimensional linearity of seismic wave before the Yangjiang earthquake with the data of Guangdong Digital Telemetry Seismograph Network.

Using Yajiang earthquake sequence data recorded by Chengdu Digital Seismic Network,the velocity ratio for the sequence are determined by spectral analysis.

Comparison of focal mechanisms for the Yajiang earthquakes with distribution patterns of aftershocks the nodal plane 1, striking in the direction NNE, of the Yajiang M S5.