In uncontrolled situation it is possible to distinguish between coseismic landslides of different age, assigning relative ages to each.

Based on GIS,the susceptibility of earthquake-induced landslide triggering factors of Longling Earthquake in 1976 is analyzed by means of the slope certainty factors(CF).

But due to the complex mechanism of the earthquake-induced landslide, it s difficult to describe the relationship clearly.

With this method,critical accelerations are calculated with the data of earthquake-induced landslide and strong motion records obtained from 3 stations in Lixian County during Wenchuan earthquake.

The formation of the seismic landslide is complex,and factors influencing the seismic landslide are multitudinous.

Based on the data of the field investigation to seismis loess disasters at home and abroad,laboratory dynamic tests of loess, and reverse calculation of typical cases, the methods and proper indexes for all the three grades of zonation of seismic landslides, seismic subsidence and liquefaction are proposed for different purposes in the paper.

For the substantial problems of landslide hazard induced by Wenchuan earthquake,according to the mechanism of seismic landslide of Wenchuan earthquake and its sporting characteristics.

Vibration table simulation test is one of methods to make research on earthquake landslide.

The evaluation and investigation on Tongxin landslide of Shitai county, Anhui province;